{"title":"Concrete Repair \/ Spalling","description":"\u003cdiv style=\"background:#f0f4f8;border-left:4px solid #a02c2c;padding:16px;margin-bottom:24px;\"\u003e\n\u003cstrong\u003eOverview:\u003c\/strong\u003e\n\u003cp\u003eConcrete repair (Spalling Repair) materials are designed for fixing concrete spalling and exposed rebar. Repair mortars are classified under HK Housing Authority standards as Class 25 (general repair) and Class 40 (structural repair), both requiring PCCS-RM certification. Suitable for ceiling, wall, beam, column and slab concrete restoration.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eHow to Choose?\u003c\/h2\u003e\n\n\u003cp\u003eSelect based on \u003cstrong\u003erepair location\u003c\/strong\u003e and \u003cstrong\u003econcrete strength\u003c\/strong\u003e:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eGeneral repair (older buildings, lower-strength concrete)\u003c\/strong\u003e → Class 25 repair mortar, e.g. \u003ca href=\"\/en\/products\/optimix-奧迪美-rm725-輕質維修砂漿-香港房署-class-25\"\u003eOptimix RM725\u003c\/a\u003e, \u003ca href=\"\/en\/products\/ronacrete-永聯結-unicell-25\"\u003eUnicell 25\u003c\/a\u003e, \u003ca href=\"\/en\/products\/fosroc-renderoc-岩補-hb25\"\u003eRenderoc HB25\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eStructural repair (high-strength concrete, beams\/columns)\u003c\/strong\u003e → Class 40 repair mortar, e.g. \u003ca href=\"\/en\/products\/ronacrete-永聯結-unicell-40\"\u003eUnicell 40\u003c\/a\u003e, \u003ca href=\"\/en\/products\/optimix-rm740-repair-mortar-hkha-class-40\"\u003eOptimix RM740\u003c\/a\u003e, \u003ca href=\"\/en\/products\/fosroc-renderoc-岩補-hb40\"\u003eRenderoc HB40\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePre-application primer\u003c\/strong\u003e → \u003ca href=\"\/en\/products\/西卡永聯結-sika-ronacrete-unicell-primer\"\u003eUnicell Primer\u003c\/a\u003e for bonding new mortar to old concrete\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eClass 25 vs Class 40\u003c\/h2\u003e\n\n\u003cp\u003eClass 25 is for older buildings with original concrete strength of 20-30 MPa, with a lower elastic modulus to match aged concrete. Class 40 is for modern structures with concrete strength 40 MPa and above. Both must comply with HK Housing Authority specifications and hold PCCS-RM certification. Government projects require certified products.\u003c\/p\u003e\n\n\u003ch2\u003eBrands Available\u003c\/h2\u003e\n\n\u003cp\u003eWah Hing supplies repair mortars and primers from Sika Ronacrete, Fosroc, Optimix, Mapei and Weber. Most products typically in stock. WhatsApp us for product details and technical advice.\u003c\/p\u003e","products":[{"product_id":"ronacrete-永聯結-unicell-25","title":"Sika Ronacrete Unicell 25","description":"\u003cdiv class=\"tldr-box\" style=\"background:#f0f4f8;border-left:4px solid #2c5282;padding:16px;margin-bottom:24px\"\u003e\n\u003cstrong\u003eSummary:\u003c\/strong\u003e\u003cp\u003eUnicell 25 is a prebagged high build, waterproof Class 25 repair mortar, PCCS-RM Class 25 certified. Just add water. High compressive strength, thick section application, 18 kg bag.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eUnicell 25 is a prepacked vinyl acetate copolymer modified mortar requiring only the addition of clean water to produce a mortar suitable for concrete repair and rendering. Conforms to the Hong Kong Housing Authority specification for Class 25 repair mortar system. Certified under the HKCI Product Conformity Certification Scheme PCCS-RM: Class 25. Can be applied in thick section, suitable for structural and non-structural application.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePrebagged for quality assurance (18 kg bag)\u003c\/li\u003e\n\u003cli\u003eSingle component - just add water\u003c\/li\u003e\n\u003cli\u003eEasy to apply on overhead surfaces\u003c\/li\u003e\n\u003cli\u003eEasy to achieve smooth surface finish\u003c\/li\u003e\n\u003cli\u003eSuitable for structural repairs\u003c\/li\u003e\n\u003cli\u003eWaterproof\u003c\/li\u003e\n\u003cli\u003eLow VOC\u003c\/li\u003e\n\u003cli\u003eCan contribute to LEED certification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThick section concrete repairs to vertical and overhead surfaces\u003c\/li\u003e\n\u003cli\u003eInternal and external use\u003c\/li\u003e\n\u003cli\u003eStructural and cosmetic repairs to buildings and bridges\u003c\/li\u003e\n\u003cli\u003eReinstate damaged concrete and protect reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose Unicell 25\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePCCS-RM Class 25 certified, compliant with Hong Kong Housing Authority specifications (per manufacturer)\u003c\/li\u003e\n\u003cli\u003eWaterproof repair mortar with high compressive strength\u003c\/li\u003e\n\u003cli\u003eSingle component - just add water for easy application\u003c\/li\u003e\n\u003cli\u003eMost sizes in stock; please enquire for specific models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePackaging\u003c\/h2\u003e\n\u003cp\u003e18 kg bag\u003c\/p\u003e\n\n\u003ch2\u003eNotes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRemove all defective concrete to a sound substrate; remove loose rust and scale from exposed reinforcement\u003c\/li\u003e\n\u003cli\u003eCut around the perimeter of the repair area to sufficient depth to avoid feather edges\u003c\/li\u003e\n\u003cli\u003eRefer to product data sheet for primer ratio and water addition quantities\u003c\/li\u003e\n\u003cli\u003eThick section application possible; intermediate layers should be primed before the next layer is applied\u003c\/li\u003e\n\u003cli\u003eStore in undamaged, unopened original sealed packaging in dry conditions; protect from direct sunlight, moisture, and frost\u003c\/li\u003e\n\u003cli\u003eFor detailed application methods, coverage rates and technical parameters, please refer to the official product data sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eWhat is the difference between Unicell 25 and Unicell 40?\u003c\/h3\u003e\n\u003cp\u003eUnicell 25 is a Class 25 repair mortar, while Unicell 40 is a Class 40 high-strength repair mortar. Class 25 is for general structural repairs; Class 40 offers higher compressive strength and elastic modulus, suitable for higher-strength concrete.\u003c\/p\u003e\n\u003ch3\u003eHow can I purchase Unicell 25?\u003c\/h3\u003e\n\u003cp\u003ePlease contact us via WhatsApp for the latest pricing and availability. We offer in-store pickup at our Mong Kok shop and delivery across Hong Kong.\u003c\/p\u003e\n","brand":"Sika Ronacrete 西卡永聯結","offers":[{"title":"Default Title","offer_id":42397753344150,"sku":"1000","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/products\/Ronacrete_Unicell25-cover.jpg?v=1672854919"},{"product_id":"ronacrete-永聯結-unicell-40","title":"Sika Ronacrete Unicell 40","description":"\u003cdiv class=\"tldr-box\" style=\"background:#f0f4f8;border-left:4px solid #2c5282;padding:16px;margin-bottom:24px\"\u003e\n\u003cstrong\u003eSummary:\u003c\/strong\u003e\u003cp\u003eUnicell 40 is a prebagged high build, high strength, waterproof Class 40 repair mortar, PCCS-RM Class 40 certified. Just add water. High compressive strength, thick section application, available in 25 kg and 10 kg bags.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eUnicell 40 is a prepacked vinyl acetate copolymer modified mortar requiring only the addition of clean water to produce a mortar suitable for concrete repair and rendering. Conforms to the Hong Kong Housing Authority specification for Class 40 repair mortar system. Certified under the HKCI Product Conformity Certification Scheme PCCS-RM: Class 40. Can be applied in thick section, suitable for structural and non-structural application. Greater thickness may be possible when filling pockets, and multiple layers can be applied once the previous layer has hardened.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePrebagged for quality assurance (available in 25 kg and 10 kg bags)\u003c\/li\u003e\n\u003cli\u003eSingle component - just add water\u003c\/li\u003e\n\u003cli\u003eEasy to apply on overhead surfaces\u003c\/li\u003e\n\u003cli\u003eEasy to achieve smooth surface finish\u003c\/li\u003e\n\u003cli\u003eSuitable for structural repairs\u003c\/li\u003e\n\u003cli\u003eWaterproof\u003c\/li\u003e\n\u003cli\u003eLow VOC\u003c\/li\u003e\n\u003cli\u003eCan contribute to LEED certification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThick section concrete repairs to vertical and overhead surfaces\u003c\/li\u003e\n\u003cli\u003eInternal and external use\u003c\/li\u003e\n\u003cli\u003eStructural and cosmetic repairs to buildings and bridges\u003c\/li\u003e\n\u003cli\u003eReinstate damaged concrete and protect reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose Unicell 40\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePCCS-RM Class 40 certified, compliant with Hong Kong Housing Authority specifications (per manufacturer)\u003c\/li\u003e\n\u003cli\u003eHigh-strength waterproof repair mortar with excellent compressive strength\u003c\/li\u003e\n\u003cli\u003eSingle component - just add water for easy application\u003c\/li\u003e\n\u003cli\u003eMost sizes in stock; please enquire for specific models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePackaging\u003c\/h2\u003e\n\u003cp\u003e25 kg bag \/ 10 kg bag\u003c\/p\u003e\n\n\u003ch2\u003eNotes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRemove all defective concrete to a sound substrate; remove loose rust and scale from exposed reinforcement\u003c\/li\u003e\n\u003cli\u003eCut around the perimeter of the repair area to sufficient depth to avoid feather edges\u003c\/li\u003e\n\u003cli\u003eRefer to product data sheet for primer ratio and water addition quantities\u003c\/li\u003e\n\u003cli\u003eThick section application possible; intermediate layers should be primed before the next layer is applied\u003c\/li\u003e\n\u003cli\u003eStore in undamaged, unopened original sealed packaging in dry conditions; protect from direct sunlight, moisture, and frost\u003c\/li\u003e\n\u003cli\u003eFor detailed application methods, coverage rates and technical parameters, please refer to the official product data sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eWhat is the difference between Unicell 40 and Unicell 25?\u003c\/h3\u003e\n\u003cp\u003eUnicell 40 is a Class 40 high-strength structural repair mortar, while Unicell 25 is a Class 25 repair mortar. Class 40 offers higher compressive strength and elastic modulus, suitable for structural repairs on higher-strength concrete.\u003c\/p\u003e\n\u003ch3\u003eHow can I purchase Unicell 40?\u003c\/h3\u003e\n\u003cp\u003ePlease contact us via WhatsApp for the latest pricing and availability. We offer in-store pickup at our Mong Kok shop and delivery across Hong Kong.\u003c\/p\u003e\n","brand":"Sika Ronacrete 西卡永聯結","offers":[{"title":"Default Title","offer_id":42397753966742,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/products\/Ronacrete_Unicell40-cover.jpg?v=1672855013"},{"product_id":"optimix-奧迪美-rm725-輕質維修砂漿-香港房署-class-25","title":"Optimix RM725 Repair Mortar (HKHA Class 25)","description":"\u003ch2\u003eOptimix RM725 – Lightweight Repair Mortar (Class 25)\u003c\/h2\u003e\n\u003cp\u003eOptimix RM725 is a high-quality pre-mixed lightweight repair mortar with shrinkage-compensating properties, certified to Hong Kong Housing Authority Class 25 requirements and PCCS-RM certified by the Hong Kong Concrete Institute. Made with lightweight aggregates for vertical and overhead concrete repairs.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHKHA Class 25 certified, PCCS-RM approved\u003c\/li\u003e\n\u003cli\u003eHigh early and ultimate strength\u003c\/li\u003e\n\u003cli\u003eThick layer application — up to 50mm vertical, 40mm overhead\u003c\/li\u003e\n\u003cli\u003eChloride and carbonation resistant\u003c\/li\u003e\n\u003cli\u003eLow shrinkage, good adhesion\u003c\/li\u003e\n\u003cli\u003eLocally produced in Hong Kong\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRepairing concrete spalling from reinforcement corrosion\u003c\/li\u003e\n\u003cli\u003ePatching hollow and honeycombed concrete\u003c\/li\u003e\n\u003cli\u003eVertical and overhead structural or cosmetic repairs\u003c\/li\u003e\n\u003cli\u003eCorrecting concrete defects and protecting reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Optimix 奧迪美","offers":[{"title":"Default Title","offer_id":42397787226262,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/RM725_4.jpg?v=1716018902"},{"product_id":"optimix-rm740-repair-mortar-hkha-class-40","title":"Optimix RM740 Repair Mortar (HKHA Class 40)","description":"\u003ch2\u003eOptimix RM740 — High-Strength Lightweight Repair Mortar (HKHA Class 40)\u003c\/h2\u003e\n\u003cp\u003eOptimix RM740 is a high-strength, lightweight cementitious repair mortar approved for use under Hong Kong Housing Authority (HKHA) Class 40 specifications. It is designed for structural concrete repair with reduced weight, making it suitable for overhead and vertical applications.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-strength repair mortar — HKHA Class 40 approved\u003c\/li\u003e\n\u003cli\u003eLightweight formulation for easier application\u003c\/li\u003e\n\u003cli\u003eExcellent adhesion to concrete substrates\u003c\/li\u003e\n\u003cli\u003eSuitable for overhead and vertical repairs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStructural concrete repair in HKHA projects\u003c\/li\u003e\n\u003cli\u003eOverhead and vertical concrete repair\u003c\/li\u003e\n\u003cli\u003eRestoration of deteriorated concrete elements\u003c\/li\u003e\n\u003cli\u003eBuilding maintenance and repair in Hong Kong\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Optimix 奧迪美","offers":[{"title":"Default Title","offer_id":42397791912086,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/RM740_4.jpg?v=1716018965"},{"product_id":"fosroc-renderoc-岩補-hb25","title":"Fosroc Renderoc HB25","description":"\u003cdiv class=\"tldr-box\" style=\"background:#f0f4f8;border-left:4px solid #2c5282;padding:16px;margin-bottom:24px\"\u003e\n\u003cstrong\u003eSummary:\u003c\/strong\u003e\u003cp\u003eRenderoc HB25 is a high-technology lightweight concrete reinstatement mortar (Class 25) from the Fosroc Renderoc range. Apply up to 80mm on vertical surfaces and 60mm overhead without formwork. Polymer-modified for extremely low permeability — resists water, carbonation and chloride ingress to protect embedded reinforcement. Single-component, just add water. Tested to HKHA TM1–TM8 specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eRenderoc HB25 is a ready-to-use blend of dry powders based on Portland cements, graded aggregates, lightweight fillers and chemical additives. It requires only the site addition of clean water to produce a highly consistent, lightweight repair mortar. Specifically designed for vertical and overhead repair work, it can be applied in thick sections without formwork. Its alkaline nature helps protect embedded steel reinforcement.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eLightweight high-build formulation\u003c\/strong\u003e — saves time and cost of multiple applications\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNo formwork required\u003c\/strong\u003e — up to 80mm vertical, 60mm overhead in a single pass\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePolymer-modified\u003c\/strong\u003e — extremely low permeability to water, carbonation and chlorides\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eExcellent bond\u003c\/strong\u003e — superior adhesion to concrete substrate\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShrinkage compensation system\u003c\/strong\u003e — reduces cracking risk\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSingle-component premix\u003c\/strong\u003e — just add water, pre-bagged to overcome site-batched variations\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eChloride-free\u003c\/strong\u003e — will not accelerate reinforcement corrosion\u003c\/li\u003e\n\u003cli\u003eFast strength gain, suitable for time-critical projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLarge and small area concrete patch repairs\u003c\/li\u003e\n\u003cli\u003eVertical spalling repairs (up to 80mm without formwork)\u003c\/li\u003e\n\u003cli\u003eOverhead \/ soffit repairs (up to 60mm without formwork)\u003c\/li\u003e\n\u003cli\u003eStructural reinforced concrete member repairs\u003c\/li\u003e\n\u003cli\u003eApplications requiring a lightweight repair mortar\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eStandards Compliance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTested to HKHA Specification TM1–TM8 (1990) (per manufacturer)\u003c\/li\u003e\n\u003cli\u003eBBA approved (per manufacturer)\u003c\/li\u003e\n\u003cli\u003eComplies with PCCS-RM (2010) (per manufacturer)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplication Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSurface preparation\u003c\/strong\u003e — remove all loose concrete, dust, oil and corrosion deposits\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSteel priming\u003c\/strong\u003e — apply Nitoprime Zincrich (WB) to exposed reinforcement\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSubstrate priming\u003c\/strong\u003e — apply Nitobond SBR \/ cement slurry bond coat\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMixing\u003c\/strong\u003e — add water per manufacturer instructions, mix with a forced-action mixer until homogeneous\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e — up to 80mm vertical, 60mm overhead per coat\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFinishing\u003c\/strong\u003e — steel, plastic or wood float, or damp sponge technique\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePackaging\u003c\/h2\u003e\n\u003cp\u003e18 kg bag\u003c\/p\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eHB25 or HB40 — which one to choose?\u003c\/h3\u003e\n\u003cp\u003eHB25 is Class 25 (general repairs), lightweight formula for thick application (up to 80mm vertical). HB40 is Class 40 (structural repairs) with higher strength. The engineering specification will state the required grade.\u003c\/p\u003e\n\u003ch3\u003eWhat is \"25 material\" (25料)?\u003c\/h3\u003e\n\u003cp\u003e\"25 material\" is the Hong Kong construction industry's colloquial term for Class 25 repair mortar. Renderoc HB25 is certified to HKHA TM1–TM8 specifications.\u003c\/p\u003e\n\u003ch3\u003eWhat primers are needed before application?\u003c\/h3\u003e\n\u003cp\u003eExposed reinforcement requires Nitoprime Zincrich (WB) anti-corrosion primer. The concrete substrate requires a Nitobond SBR \/ cement slurry bond coat. Refer to the official product data sheet for full details.\u003c\/p\u003e","brand":"Fosroc 富斯樂","offers":[{"title":"Default Title","offer_id":42397807313046,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/products\/FosrocRenderoc_HB25-cover.jpg?v=1672857382"},{"product_id":"fosroc-renderoc-岩補-hb40","title":"Fosroc Renderoc HB40","description":"\u003cdiv class=\"tldr-box\" style=\"background:#f0f4f8;border-left:4px solid #2c5282;padding:16px;margin-bottom:24px\"\u003e\u003cstrong\u003eTL;DR:\u003c\/strong\u003e\u003cp\u003eFosroc Renderoc HB40 is a medium-weight concrete reinstatement mortar designed for vertical and overhead repair work. Its polymer-modified formulation provides extremely low permeability, while its natural alkalinity protects embedded steel reinforcement. Tested and approved under the PCCS-RM TM1 to TM6 scheme (per manufacturer). Single-component — just add water.\u003c\/p\u003e\u003c\/div\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eRenderoc HB40 is a ready-to-use blend of dry powders that requires only the site addition of clean water to produce a highly consistent, medium-weight repair mortar. Based on Portland cements, graded aggregates, lightweight fillers, and chemical additives, it provides good handling characteristics while minimising water demand. The low water requirement ensures fast strength gain and long-term durability. The material is naturally alkaline, protecting embedded steel reinforcement from corrosion. It is suitable for both large-area concrete reinstatement and small localised patch repairs. The cured mortar is highly impermeable to acid gases, chloride ions, oxygen, and water.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eMedium-weight high-build formulation\u003c\/strong\u003e — Saves time and cost of multiple applications\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eNo formwork required\u003c\/strong\u003e — Can be applied in a single pass on vertical and overhead surfaces to appropriate thickness without formwork\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eExtremely low permeability\u003c\/strong\u003e — Polymer modification provides effective resistance to water, carbon dioxide, and chlorides\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eExcellent bond strength\u003c\/strong\u003e — Strong adhesion to the concrete substrate\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eExceptional shrinkage compensation\u003c\/strong\u003e — Systematic shrinkage compensation mechanism reduces cracking risk\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eSingle-component pre-bagged\u003c\/strong\u003e — Just add water; pre-packaged formulation eliminates site-batching variations\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eNo chloride admixtures\u003c\/strong\u003e — Will not accelerate reinforcement corrosion\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eReinforcement protection\u003c\/strong\u003e — Natural alkalinity provides corrosion protection for embedded steel\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eLarge-area concrete reinstatement (spalling repairs)\u003c\/li\u003e\u003cli\u003eSmall localised patch repairs\u003c\/li\u003e\u003cli\u003eVertical and overhead concrete repair\u003c\/li\u003e\u003cli\u003eConcrete spalling caused by reinforcement corrosion\u003c\/li\u003e\u003cli\u003eStructural repairs requiring a medium-weight repair mortar\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003ePackaging\u003c\/h2\u003e\u003cp\u003e25KG bags.\u003c\/p\u003e\u003ch2\u003eImportant Notes\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eNot suitable for application when temperature is low and falling\u003c\/li\u003e\u003cli\u003eDo not mix part bags\u003c\/li\u003e\u003cli\u003eNot suitable for areas subject to vehicular or heavy traffic due to its medium-weight formulation\u003c\/li\u003e\u003cli\u003eHeavy rainfall before final set may cause surface scour\u003c\/li\u003e\u003cli\u003eMust be cured after repair in accordance with good concrete practice\u003c\/li\u003e\u003cli\u003eShelf life is nine months in unopened packs stored in dry conditions\u003c\/li\u003e\u003cli\u003eWear gloves, eye protection, and dust masks during application\u003c\/li\u003e\u003cli\u003eFor detailed application methods, coverage rates, and technical parameters, please refer to the official product data sheet\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eWhat is the difference between Renderoc HB40 and HB25?\u003c\/h3\u003e\u003cp\u003eBoth are medium-weight repair mortars in the Renderoc range, but HB40 is a higher strength grade suitable for structural repairs with greater strength requirements. HB25 is a lower strength grade that allows thicker single-pass application on vertical surfaces. Select the appropriate grade based on the project's strength requirements.\u003c\/p\u003e\u003ch3\u003eWhat priming is needed before applying HB40?\u003c\/h3\u003e\u003cp\u003eExposed reinforcing steel should first be coated with Nitoprime Zincrich WB anti-corrosion primer. The concrete substrate should be thoroughly soaked, then a Nitobond SBR cement slurry bond coat should be scrubbed into the surface. Apply the repair mortar as soon as the bond coat becomes tacky.\u003c\/p\u003e","brand":"Fosroc 富斯樂","offers":[{"title":"Default Title","offer_id":42397814128790,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/HB40.jpg?v=1778740125"},{"product_id":"富斯樂-fosroc-nitoprime-zincrich-wb-2-1kg","title":"Fosroc Nitoprime Zincrich WB","description":"\u003ch2\u003eNitoprime Zincrich WB — Water-Based Zinc-Rich Rebar Primer\u003c\/h2\u003e\n\u003cp\u003eNitoprime Zincrich WB is a water-based epoxy zinc-rich primer by Fosroc for corrosion protection of steel reinforcement in concrete repair. The low-VOC, environmentally friendly formula contains zinc powder for sacrificial cathodic protection, making it ideal for indoor work, poorly ventilated areas, and projects with environmental compliance requirements. Also suitable for use in drinking water system applications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey uses:\u003c\/strong\u003e indoor concrete repair rebar treatment, confined space projects, environmentally sensitive sites, drinking water facility repairs, structural repairs with Renderoc mortars.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWB vs standard Zincrich:\u003c\/strong\u003e WB is water-based with low VOC for indoor\/confined spaces. Standard Zincrich is solvent-based with stronger corrosion resistance for outdoor\/high-corrosion environments. Both provide sacrificial zinc protection.\u003c\/p\u003e","brand":"Fosroc 富斯樂","offers":[{"title":"Default Title","offer_id":43646940315798,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/Fosroc_Nitoprime_Zincrich_WB_46cc15ae-a6f4-413f-b7ca-7f022c36ec8b.png?v=1752937218"},{"product_id":"富斯樂-fosroc-renderoc-gp-25kg","title":"Fosroc Renderoc GP","description":"\u003cdiv class=\"tldr-box\" style=\"background:#f0f4f8;border-left:4px solid #2c5282;padding:16px;margin-bottom:24px\"\u003e\n\u003cstrong\u003eAt a Glance:\u003c\/strong\u003e\u003cp\u003eRenderoc GP is a Fosroc single-component medium-weight concrete and masonry reinstatement mortar designed for hot climates. Pre-blended from Portland cement, graded aggregates, special fillers, and chemical additives — just add water on site. Achieves high build on vertical and overhead surfaces without formwork. Low permeability provides effective protection against carbon dioxide and chloride ingress. Shrinkage-compensated formula containing no chloride admixtures. Excellent thermal compatibility with concrete substrates. Tested to Hong Kong Housing Authority Specification (per manufacturer).\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eRenderoc GP is a ready-to-use blend of dry powders requiring only the site addition of clean water to produce a highly consistent, medium-weight repair mortar for general-purpose concrete and masonry repairs. Based on Portland cement, graded aggregates, special fillers, and chemical additives, modified with anti-desiccation additives for use in all climates. Maintains good handling characteristics while minimising water demand. Exhibits excellent thermal compatibility with concrete, and low water requirement ensures fast strength gain and long-term durability.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eHigh Build Without Formwork\u003c\/strong\u003e — Achieves significant thickness on vertical and overhead surfaces without shuttering, saving time and cost\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLow Permeability\u003c\/strong\u003e — Effective barrier against carbon dioxide and chloride ingress, protecting concrete structures\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eExcellent Bond\u003c\/strong\u003e — Strong adhesion to concrete substrates\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShrinkage Compensated\u003c\/strong\u003e — Built-in shrinkage compensation reduces cracking risk after curing\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNo Chloride Admixtures\u003c\/strong\u003e — Will not contribute to reinforcement corrosion\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eThermal Compatibility\u003c\/strong\u003e — Well-matched coefficient of thermal expansion with concrete\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHot Climate Suitable\u003c\/strong\u003e — Anti-desiccation modified for good workability in high-temperature environments\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eChemical Resistant\u003c\/strong\u003e — Cured mortar resists acid gases, chloride ions, oxygen, and water\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSingle Component\u003c\/strong\u003e — Just add water for quick and simple preparation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eConcrete Repair\u003c\/strong\u003e — General-purpose concrete patching and maintenance\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMasonry Reinstatement\u003c\/strong\u003e — Masonry structure repair and restoration\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eVertical and Overhead\u003c\/strong\u003e — Columns, beams, walls, and ceilings (without formwork)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePatch Repair\u003c\/strong\u003e — All types of localised patch repairs\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCorrosion Protection\u003c\/strong\u003e — Areas requiring chloride and carbon dioxide resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplication Guide\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSurface Preparation\u003c\/strong\u003e — Saw-cut repair edges to avoid feathering; remove dust, oil, rust, and unsound material\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSteel Priming\u003c\/strong\u003e — Apply Nitoprime Zincrich (WB) anti-corrosion primer to exposed reinforcement\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSubstrate Priming\u003c\/strong\u003e — Thoroughly soak substrate, then apply Nitobond SBR \/ cement slurry bond coat\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMixing\u003c\/strong\u003e — Use forced-action mixer or suitable paddle with low-speed drill; free-fall mixers must not be used\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e — Apply by gloved hand or trowel, compacting firmly\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCuring\u003c\/strong\u003e — Cure immediately after finishing with Nitobond AR or Concure WB spray membrane\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eProtective Coating\u003c\/strong\u003e — Completed repairs can be overcoated with Dekguard anti-carbonation coatings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePackaging\u003c\/h2\u003e\n\u003cp\u003e25KG bag (single-component pre-blended powder, just add water)\u003c\/p\u003e\n\n\u003ch2\u003eNotes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNot suitable for areas subject to vehicular traffic\u003c\/li\u003e\n\u003cli\u003eDo not use when the temperature is below 5 degrees and falling\u003c\/li\u003e\n\u003cli\u003eDo not mix part bags\u003c\/li\u003e\n\u003cli\u003eExposure to heavy rainfall before final set may cause surface scour\u003c\/li\u003e\n\u003cli\u003eFor multi-layer application, scratch-key intermediate layers and cure with Nitobond AR before repriming\u003c\/li\u003e\n\u003cli\u003eCan be finished with steel, plastic, or wood float, or damp sponge technique\u003c\/li\u003e\n\u003cli\u003eShelf life of 9 months in original unopened bags stored in dry conditions (per manufacturer)\u003c\/li\u003e\n\u003cli\u003eWear protective gloves, eye protection, and dust masks during application\u003c\/li\u003e\n\u003cli\u003eFor detailed application methods, coverage rates, and technical parameters, refer to the official product data sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eHow do I choose between Renderoc GP, HB40, LA55, and S?\u003c\/h3\u003e\n\u003cp\u003eGP is a general-purpose medium-weight repair mortar suitable for common concrete repairs. HB40 is a high-strength grade for structural repairs. LA55 is lightweight, ideal for large-area overhead ceiling repairs. S is a high-strength spray-grade option for large-area spray application. Select based on repair location and project requirements.\u003c\/p\u003e\n\u003ch3\u003eCan Renderoc GP be used on roads or driveways?\u003c\/h3\u003e\n\u003cp\u003eNo. As a medium-weight formulation, the manufacturer explicitly states Renderoc GP should not be used in areas subject to vehicular traffic. For traffic-bearing repairs, please contact us via WhatsApp for suitable alternatives.\u003c\/p\u003e\n\u003ch3\u003eHow much does Renderoc GP cost?\u003c\/h3\u003e\n\u003cp\u003ePlease contact us via WhatsApp for the latest pricing. We offer in-store pickup in Mong Kok and delivery across Hong Kong.\u003c\/p\u003e","brand":"Fosroc 富斯樂","offers":[{"title":"Default Title","offer_id":43647053529238,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/220px-Fosroc-logo-RGB_00e152fd-ed1b-4d42-872b-eff7415fb879.jpg?v=1715972772"},{"product_id":"富斯樂-fosroc-renderoc-la55-25kg","title":"Fosroc Renderoc LA55","description":"\u003cdiv class=\"tldr-box\" style=\"background:#f0f4f8;border-left:4px solid #2c5282;padding:16px;margin-bottom:24px\"\u003e\n\u003cstrong\u003eAt a Glance:\u003c\/strong\u003e\u003cp\u003eRenderoc LA55 is a Fosroc single-component free-flowing low-alkali micro-concrete, based on Portland cement, graded aggregates, and additives — just add water on site. Its highly fluid nature eliminates the need for compaction and vibration, making it ideal for pouring or pumping into large structural repairs. A dual expansion system compensates for shrinkage in both plastic and hardened states. Low alkali content minimises the risk of alkali-silica reaction (ASR). Extremely low permeability provides outstanding chloride and carbonation resistance. Achieves exceptional bond to concrete substrates without independent primer. Tested to Hong Kong Housing Authority methods (per manufacturer).\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eRenderoc LA55 is a ready-to-use blend of dry powders requiring only the site addition of clean water to produce a free-flowing, shrinkage-compensated micro-concrete suitable for large-volume concrete repairs at substantial thicknesses. Based on Portland cement, graded aggregates, and additives that impart controlled expansion in both plastic and hardened states while minimising water demand. Low alkali content minimises alkali-silica reaction risk. The hardened product exhibits excellent thermal compatibility with concrete and outstanding water-repellent properties. Aggregate grading is designed for uniform mixing and to eliminate segregation under pumping pressures. Low water requirement ensures fast strength gain and long-term durability.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eDual Expansion Shrinkage Compensation\u003c\/strong\u003e — Compensates for shrinkage in both plastic and hardened states, reducing cracking risk\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLow Alkali Formula\u003c\/strong\u003e — Low alkali content minimises risk of alkali-silica reaction (ASR)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBonds Without Primer\u003c\/strong\u003e — Exceptional bond to concrete substrates without independent primer\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePumpable and Pourable\u003c\/strong\u003e — Suitable for placement by pumping or pouring into restricted locations\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSelf-Compacting\u003c\/strong\u003e — Eliminates honeycombing and displaces air without vibration\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHigh Strength, Low Permeability\u003c\/strong\u003e — High compressive strength combined with extremely low permeability for maximum carbonation and chloride protection\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSingle Component\u003c\/strong\u003e — Pre-bagged to overcome site-batched variations, just add water\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNo Chloride Admixtures\u003c\/strong\u003e — Will not contribute to reinforcement corrosion\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eChemical Resistant\u003c\/strong\u003e — Cured micro-concrete is highly impermeable to acid gases, chloride ions, oxygen, and water\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eLarge Structural Repairs\u003c\/strong\u003e — Marine structures, bridge columns and beams, major concrete reinstatement\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRestricted Access Locations\u003c\/strong\u003e — Small or confined areas where hand-and-trowel application is impractical (e.g. honeycombing in precast segments)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSalt Water Damage\u003c\/strong\u003e — Repair of concrete contaminated by salt water\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRail Infrastructure\u003c\/strong\u003e — Light railway wall repairs and station structures\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCathodic Protection Systems\u003c\/strong\u003e — Repair mortar compatible with cathodic protection\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eASR Prevention\u003c\/strong\u003e — Structures requiring minimised alkali-silica reaction risk\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCertifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConforms to UK Department of Transport Standard BD27\/86, Clause 4 for materials for repair of concrete highway structures (per manufacturer)\u003c\/li\u003e\n\u003cli\u003eConforms to DTp Specification for Highway Works, Clause 1704.6 for control of alkali-silica reaction (per manufacturer)\u003c\/li\u003e\n\u003cli\u003eComplies with UK Water Fittings Bye-laws Scheme Tests of Effect on Water Quality (per manufacturer)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplication Guide\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eFormwork Preparation\u003c\/strong\u003e — Erect rigid, sealed formwork with provision for pouring access, drainage, and air venting\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSurface Preparation\u003c\/strong\u003e — Saw-cut repair edges to avoid feathering; remove dust, oil, rust, and unsound material\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSteel Priming\u003c\/strong\u003e — Apply Nitoprime Zincrich (WB) anti-corrosion primer to exposed reinforcement\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSubstrate Saturation\u003c\/strong\u003e — Saturate prepared substrate with clean water several hours before placing; drain excess before pouring\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMixing\u003c\/strong\u003e — Use forced-action mixer; free-fall mixers must not be used; never mix part bags\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePlacing\u003c\/strong\u003e — Place promptly after mixing to benefit from full fluidity and expansion; can be pumped\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCuring\u003c\/strong\u003e — After formwork removal, soak with clean water and spray with curing membrane (e.g. Concure WB)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eProtective Coating\u003c\/strong\u003e — Recommend Dekguard anti-carbonation coatings for surrounding areas\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePackaging\u003c\/h2\u003e\n\u003cp\u003e25KG bag (single-component pre-blended powder, just add water)\u003c\/p\u003e\n\n\u003ch2\u003eNotes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDo not use when the temperature is below 5 degrees and falling\u003c\/li\u003e\n\u003cli\u003eDo not mix part bags\u003c\/li\u003e\n\u003cli\u003eDo not use for horizontal areas where the surface remains unrestrained during curing\u003c\/li\u003e\n\u003cli\u003eDo not expose to moving water during application\u003c\/li\u003e\n\u003cli\u003eMixing instructions must be strictly followed, particularly water quantity and mixing time\u003c\/li\u003e\n\u003cli\u003eShelf life of 12 months in original unopened bags stored in dry conditions (per manufacturer)\u003c\/li\u003e\n\u003cli\u003eWear protective gloves, eye protection, and respiratory equipment during application\u003c\/li\u003e\n\u003cli\u003eFor detailed application methods, coverage rates, and technical parameters, refer to the official product data sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eWhat is the difference between Renderoc LA55 and GP?\u003c\/h3\u003e\n\u003cp\u003eLA55 is a self-levelling micro-concrete with high fluidity, placed by pouring or pumping, designed for large-volume deep repairs (typically at substantial thicknesses). GP is a medium-weight hand-applied mortar placed by gloved hand or trowel, suitable for general-purpose repairs at moderate thicknesses. Use LA55 for major structural repairs; use GP for general localised patching.\u003c\/p\u003e\n\u003ch3\u003eDoes Renderoc LA55 need vibration?\u003c\/h3\u003e\n\u003cp\u003eNo. LA55's self-compacting nature automatically displaces air and fills the formwork without vibration. This is one of its key advantages, making it particularly suitable for repairs around dense reinforcement and in confined spaces.\u003c\/p\u003e\n\u003ch3\u003eDoes Renderoc LA55 need a primer?\u003c\/h3\u003e\n\u003cp\u003eUnder normal conditions, the substrate only needs to be saturated with clean water — no independent primer is required. LA55 achieves exceptional bond directly to pre-soaked concrete substrates. Epoxy bonding aid is only needed in special circumstances such as where a substrate barrier is required.\u003c\/p\u003e\n\u003ch3\u003eHow much does Renderoc LA55 cost?\u003c\/h3\u003e\n\u003cp\u003ePlease contact us via WhatsApp for the latest pricing. We offer in-store pickup in Mong Kok and delivery across Hong Kong.\u003c\/p\u003e","brand":"Fosroc 富斯樂","offers":[{"title":"Default Title","offer_id":43647059886230,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/220px-Fosroc-logo-RGB_86026e2e-8142-423c-87ca-baa92c15c71c.jpg?v=1715972880"},{"product_id":"富斯樂-fosroc-renderoc-s-25kg","title":"Fosroc Renderoc S","description":"\u003cdiv class=\"tldr-box\" style=\"background:#f0f4f8;border-left:4px solid #2c5282;padding:16px;margin-bottom:24px\"\u003e\n\u003cstrong\u003eSummary:\u003c\/strong\u003e\u003cp\u003eRenderoc S is a Fosroc structural-grade polymer-modified concrete reinstatement mortar. Single component — just add water. Delivers high compressive strength and excellent abrasion resistance. Extremely low permeability blocks carbon dioxide and chlorides to protect embedded reinforcement. Can be applied by hand or spray for large-area and localised concrete repairs. BBA certified and approved for contact with potable water (per manufacturer).\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eRenderoc S is a structural-grade concrete repair mortar supplied as a pre-blended dry powder of Portland cement, graded aggregates, special fillers and chemical additives. Polymer-modified for good handling characteristics and reduced water demand, it only requires the addition of clean water to produce a highly consistent, high-strength repair mortar. The hardened product exhibits excellent thermal compatibility with concrete and outstanding water-repellent properties, with rapid strength gain for long-term durability.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eHigh compressive strength and abrasion resistance\u003c\/strong\u003e — suitable for locations with strict strength and wear requirements\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eExtremely low permeability\u003c\/strong\u003e — maximum protection against carbon dioxide and chloride ingress\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eExcellent bond\u003c\/strong\u003e — strong adhesion to the concrete substrate\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShrinkage compensation\u003c\/strong\u003e — reduces cracking risk\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFlexible application\u003c\/strong\u003e — apply by hand, trowel, or wet\/dry spray for efficient large-area work\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSingle-component pre-blend\u003c\/strong\u003e — just add water; pre-bagged to eliminate site-batching variations\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eChloride-free\u003c\/strong\u003e — will not accelerate reinforcement corrosion\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNon-combustible\u003c\/strong\u003e — passes non-combustibility testing (per manufacturer)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLarge-area structural concrete reinstatement\u003c\/li\u003e\n\u003cli\u003eLocalised patch repairs\u003c\/li\u003e\n\u003cli\u003eLocations requiring high compressive strength\u003c\/li\u003e\n\u003cli\u003eConcrete surfaces needing good abrasion resistance\u003c\/li\u003e\n\u003cli\u003eEnvironments exposed to chloride and carbonation attack\u003c\/li\u003e\n\u003cli\u003eVertical and horizontal concrete repairs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCertifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBritish Board of Agrement (BBA) Certificate No. 91\/2582 (per manufacturer)\u003c\/li\u003e\n\u003cli\u003eApproved for contact with potable water per BS6920 (per manufacturer)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplication Guidelines\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSurface preparation\u003c\/strong\u003e — saw-cut repair edges to avoid feather-edging; remove dust, oil, rust and unsound material\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSteel priming\u003c\/strong\u003e — apply Nitoprime Zincrich (WB) to exposed reinforcement\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSubstrate priming\u003c\/strong\u003e — apply Nitobond SBR \/ cement slurry bond coat; apply mortar while coat is tacky\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMixing\u003c\/strong\u003e — use a forced-action mixer; add water per product data sheet and mix to full homogeneity\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e — compact by hand or trowel, or apply by spray; observe minimum and maximum thickness limits\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCuring\u003c\/strong\u003e — cure immediately after finishing; Nitobond AR or Concure WB spray curing recommended\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePackaging\u003c\/h2\u003e\n\u003cp\u003e25 kg bag\u003c\/p\u003e\n\n\u003ch2\u003eNotes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAlkaline formulation — wear appropriate protective equipment during application\u003c\/li\u003e\n\u003cli\u003eDo not apply when temperature is low and falling\u003c\/li\u003e\n\u003cli\u003eDo not mix part bags\u003c\/li\u003e\n\u003cli\u003eCompleted repairs may be overcoated with Dekguard anti-carbonation protective coatings for enhanced protection\u003c\/li\u003e\n\u003cli\u003eShelf life: twelve months in original unopened bags stored in dry conditions (per manufacturer)\u003c\/li\u003e\n\u003cli\u003eFor detailed application methods, coverage rates and technical parameters, refer to the official product data sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eHow does Renderoc S differ from GP \/ HB series?\u003c\/h3\u003e\n\u003cp\u003eRenderoc S is a structural-grade mortar with higher compressive strength and abrasion resistance, suited for locations with strict strength requirements. GP is a general-purpose repair mortar, while HB series (e.g. HB25, HB40) are lightweight high-build formulations. Select the appropriate product based on engineering requirements, or contact us via WhatsApp.\u003c\/p\u003e\n\n\u003ch3\u003eCan it be spray-applied?\u003c\/h3\u003e\n\u003cp\u003eYes. Renderoc S supports both wet and dry spray application for efficient large-area repairs. Spray-applied repairs also deliver denser compaction and enhanced substrate bond. Refer to the official spray application guide for equipment and operating details.\u003c\/p\u003e\n\n\u003ch3\u003eHow much does it cost?\u003c\/h3\u003e\n\u003cp\u003ePlease contact us via WhatsApp for pricing. Available for pickup at our Mong Kok store or delivery within Hong Kong.\u003c\/p\u003e","brand":"Fosroc 富斯樂","offers":[{"title":"Default Title","offer_id":43647066472598,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/fosroc-logo-company-branding.jpg?v=1760463946"},{"product_id":"偉伯-weber-weberep-patchbond-25-修補砂漿-25-20kg","title":"Weber Weberep Patchbond 25","description":"\u003ch2\u003eEnglish Summary\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWeberep Patchbond 25\u003c\/strong\u003e is a Class 25 polymer-modified concrete repair mortar by Weber. It is a single-component, just-add-water formulation with shrinkage compensation, specifically designed for overhead and vertical concrete repairs. Compliant with Hong Kong and British standards.\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-build formula — up to 60mm per layer on ceilings without slumping\u003c\/li\u003e\n\u003cli\u003eShrinkage compensated to minimize cracking and ensure strong bond\u003c\/li\u003e\n\u003cli\u003ePolymer modified for superior adhesion, durability, and water resistance\u003c\/li\u003e\n\u003cli\u003eSingle-component — just add water on site\u003c\/li\u003e\n\u003cli\u003eMeets Hong Kong and British standards for Class 25 repair mortars\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCeiling concrete spalling repair — exposed rebar and delaminated concrete\u003c\/li\u003e\n\u003cli\u003eWall concrete repair — cracks, honeycombs, and spalled areas\u003c\/li\u003e\n\u003cli\u003eGeneral maintenance where Class 25 mortar is specified\u003c\/li\u003e\n\u003cli\u003eSurface repair of structural elements (beams, columns)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePatchbond 25 vs Patchbond 40?\u003c\/strong\u003e\u003cbr\u003ePatchbond 25 (Class 25) is for general maintenance and non-structural repairs. Patchbond 40 (Class 40) is higher strength for structural repairs. The class is typically specified by engineering drawings.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrice?\u003c\/strong\u003e\u003cbr\u003ePlease WhatsApp us for a quote. Available for pickup at our Mong Kok store or delivery across Hong Kong.\u003c\/p\u003e","brand":"Weber 偉伯","offers":[{"title":"Default Title","offer_id":43648836599958,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/321-B20WBZHK-19R04webereppatchbond25_png.webp?v=1716035603"},{"product_id":"偉伯-weber-weberep-patchbond-40-修補砂漿-40-25kg","title":"Weber Weberep Patchbond 40","description":"\u003ch2\u003eEnglish Summary\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWeberep Patchbond 40\u003c\/strong\u003e is a Class 40 high-strength, polymer-modified concrete repair mortar by Weber. Designed for structural repairs, it offers shrinkage compensation, excellent bond strength, and high-build application without formwork. Compliant with BS EN 1504-3 and Hong Kong standards.\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eClass 40 high strength — matches or exceeds structural concrete strength\u003c\/li\u003e\n\u003cli\u003eHigh-build application: 40mm vertical \/ 30mm overhead per layer without slumping\u003c\/li\u003e\n\u003cli\u003eShrinkage compensated to prevent cracking\u003c\/li\u003e\n\u003cli\u003ePolymer modified for superior water resistance and chloride protection\u003c\/li\u003e\n\u003cli\u003eSingle component — just add water on site\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStructural concrete repair — beams, columns, slabs with exposed rebar \/ spalling\u003c\/li\u003e\n\u003cli\u003eInfrastructure maintenance — bridges, tunnels, marine and industrial structures\u003c\/li\u003e\n\u003cli\u003eConcrete cover reinstatement for fire rating and load-bearing capacity\u003c\/li\u003e\n\u003cli\u003eLarge-scale patching of honeycombed or damaged concrete\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePatchbond 40 vs Patchbond 25?\u003c\/strong\u003e\u003cbr\u003ePatchbond 25 (Class 25) is for general non-structural repairs with thicker overhead application (60mm). Patchbond 40 (Class 40) is for structural repairs with higher strength but limited to 30mm overhead per layer. Class is specified by engineering drawings.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrice?\u003c\/strong\u003e\u003cbr\u003ePlease WhatsApp us for a quote. Available for pickup at our Mong Kok store or delivery across Hong Kong.\u003c\/p\u003e","brand":"Weber 偉伯","offers":[{"title":"Default Title","offer_id":43648838172822,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/322-B25WBZHK-19R04webereppatchbond40_png.webp?v=1716035735"},{"product_id":"偉伯-weber-webertec-ace-滲透修補劑-20l","title":"Weber Webertec ACE","description":"\u003ch2\u003eEnglish Summary\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWebertec ACE\u003c\/strong\u003e is a low-viscosity acrylic copolymer penetrating consolidator by Weber. Designed to treat weak, dusty, or deteriorated concrete surfaces, it penetrates deep into the substrate to bind loose particles, seal micro-cracks, and restore structural strength. Also serves as an excellent primer for subsequent coatings or repair materials.\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUltra-low viscosity for deep penetration into concrete capillaries and micro-cracks\u003c\/li\u003e\n\u003cli\u003eConsolidates loose particles from the inside out\u003c\/li\u003e\n\u003cli\u003eSeals dusting surfaces to prevent further deterioration\u003c\/li\u003e\n\u003cli\u003eReady to use — no mixing or dilution required\u003c\/li\u003e\n\u003cli\u003eCreates a stable base for paints, coatings, or repair mortars\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTreating dusting, chalking, or friable concrete floors and walls\u003c\/li\u003e\n\u003cli\u003eStrengthening aged or deteriorated concrete surfaces\u003c\/li\u003e\n\u003cli\u003eSealing micro-cracks to prevent water ingress and rebar corrosion\u003c\/li\u003e\n\u003cli\u003eSurface preparation before painting or waterproofing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eACE vs regular primer?\u003c\/strong\u003e\u003cbr\u003eACE is a penetrating repair agent for problematic (dusty\/weak) concrete, strengthening the substrate from within. A regular primer is for healthy concrete surfaces to improve adhesion of subsequent materials.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrice?\u003c\/strong\u003e\u003cbr\u003ePlease WhatsApp us for a quote. Available for pickup at our Mong Kok store or delivery across Hong Kong.\u003c\/p\u003e","brand":"Weber 偉伯","offers":[{"title":"Default Title","offer_id":43648846889110,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/webertecACE.jpg?v=1718112137"},{"product_id":"西卡永聯結-sika-ronacrete-unicell-40s-25kg","title":"Sika Ronacrete Unicell 40S","description":"\u003cdiv class=\"tldr-box\" style=\"background:#f0f4f8;border-left:4px solid #2c5282;padding:16px;margin-bottom:24px\"\u003e\u003cstrong\u003eQuick Summary:\u003c\/strong\u003e\u003cp\u003eUnicell 40S is a pre-blended vinyl acetate copolymer-modified Class 40 mortar from Sika Ronacrete, designed for filling gaps around window frames, door frames and roller shutter frames. Meets HKHA Class 40 RMS specification. Waterproof, shrinkage-compensating, 25 kg bag.\u003c\/p\u003e\u003c\/div\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eMeets HKHA Class 40 Repair Mortar Specification\u003c\/li\u003e\u003cli\u003eHigh build-up for thick applications\u003c\/li\u003e\u003cli\u003eSimple mixing — just add water\u003c\/li\u003e\u003cli\u003ePre-packaged for consistent quality\u003c\/li\u003e\u003cli\u003eSuitable for structural applications\u003c\/li\u003e\u003cli\u003eWaterproof and impermeable\u003c\/li\u003e\u003cli\u003eShrinkage-compensating (no cracking in Coutinho Ring test)\u003c\/li\u003e\u003cli\u003eLow VOC\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eFilling gaps between window frames and concrete walls\u003c\/li\u003e\u003cli\u003eDoor frame gap filling\u003c\/li\u003e\u003cli\u003eRoller shutter frame gap filling\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eWhy Choose Unicell 40S\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eHKHA approved:\u003c\/strong\u003e meets Class 40 RMS for public housing projects\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eHigh strength\u003c\/strong\u003e\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eWaterproof:\u003c\/strong\u003e very low water absorption\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eNo shrinkage:\u003c\/strong\u003e Coutinho Ring test — no cracking\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eEasy to use:\u003c\/strong\u003e pre-blended, just add water and mix\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003ePackaging\u003c\/h2\u003e\u003ctable\u003e\u003cthead\u003e\u003ctr\u003e\u003cth\u003eItem\u003c\/th\u003e\u003cth\u003eSpecification\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003ePack size\u003c\/td\u003e\u003ctd\u003e25 kg bag\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eColour\u003c\/td\u003e\u003ctd\u003eConcrete grey\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eStorage\u003c\/td\u003e\u003ctd\u003eSealed original packaging, cool dry location, away from sunlight and frost\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eImportant Notes\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eRemove all dust, loose material and laitance from substrate\u003c\/li\u003e\u003cli\u003eThoroughly dampen concrete surface with water\u003c\/li\u003e\u003cli\u003eFor greater thicknesses, apply Unicell Primer first\u003c\/li\u003e\u003cli\u003eAdd powder to container with appropriate water, mix to workable mortar\u003c\/li\u003e\u003cli\u003eCompact mortar into frame gaps to fill all voids\u003c\/li\u003e\u003cli\u003eTrowel smooth after appropriate time\u003c\/li\u003e\u003cli\u003eClean tools immediately with water\u003c\/li\u003e\u003cli\u003eFor detailed application methods, coverage rates and technical parameters, refer to the official product data sheet\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eHow does Unicell 40S differ from standard repair mortar?\u003c\/h3\u003e\u003cp\u003eSpecifically designed for window frame gap filling, meeting HKHA Class 40 specification. Its waterproofing and shrinkage-compensating properties prevent window leakage. Standard mortars may not achieve equivalent performance.\u003c\/p\u003e\u003ch3\u003eCan Unicell 40S be used for general concrete repair?\u003c\/h3\u003e\u003cp\u003ePrimarily designed for window, door and shutter frame gaps. For general concrete repair, Unicell 40 (general Class 40) or Unicell 25 (Class 25) are more suitable.\u003c\/p\u003e","brand":"Sika Ronacrete 西卡永聯結","offers":[{"title":"Default Title","offer_id":43686297305238,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/hk-02-en-HK-Unicell-40S-01-1x1-00948371.webp?v=1716652682"},{"product_id":"西卡永聯結-sika-ronacrete-unicell-60-25kg","title":"Sika Ronacrete Unicell 60","description":"\u003cdiv class=\"tldr-box\" style=\"background:#f0f4f8;border-left:4px solid #2c5282;padding:16px;margin-bottom:24px\"\u003e\u003cstrong\u003eQuick Summary:\u003c\/strong\u003e\u003cp\u003eUnicell 60 is a pre-packaged high build-up, high-strength, waterproof Class 60 repair mortar. Just add water. Highest strength grade in the Unicell range, suitable for high-strength structural repair. 25 kg bag.\u003c\/p\u003e\u003c\/div\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\u003cli\u003ePre-packaged for quality (25 kg bag)\u003c\/li\u003e\u003cli\u003eSingle-component, just add water\u003c\/li\u003e\u003cli\u003eEasy overhead application\u003c\/li\u003e\u003cli\u003eSmooth finish achievable\u003c\/li\u003e\u003cli\u003eStructural repair grade\u003c\/li\u003e\u003cli\u003eWaterproof\u003c\/li\u003e\u003cli\u003eHighest strength in the Unicell range\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eThick-section concrete repair on vertical and overhead surfaces\u003c\/li\u003e\u003cli\u003eIndoor and outdoor use\u003c\/li\u003e\u003cli\u003eStructural and cosmetic repair of buildings and bridges\u003c\/li\u003e\u003cli\u003eRestoring damaged concrete and protecting reinforcement\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eWhy Choose Unicell 60\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eHighest strength grade in the Unicell series\u003c\/li\u003e\u003cli\u003eWaterproof for demanding structural repair\u003c\/li\u003e\u003cli\u003eSingle-component, just add water\u003c\/li\u003e\u003cli\u003eGenerally in stock; contact us for availability\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003ePackaging\u003c\/h2\u003e\u003cp\u003e25 kg bag\u003c\/p\u003e\u003ch2\u003eImportant Notes\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eRemove all damaged concrete to sound substrate; remove loose rust from rebar\u003c\/li\u003e\u003cli\u003eCut repair edges to adequate depth to avoid feather edges\u003c\/li\u003e\u003cli\u003ePrepare bond coat: Unicell Primer mixed with cement at specified ratio\u003c\/li\u003e\u003cli\u003eMix full bag with appropriate water using mechanical mixer until uniform\u003c\/li\u003e\u003cli\u003eIntermediate layers must be scratched\/hacked and re-primed before next layer\u003c\/li\u003e\u003cli\u003eFinish with steel or wooden trowel to required profile\u003c\/li\u003e\u003cli\u003eCure finished surface with Monocure 50\u003c\/li\u003e\u003cli\u003eStore sealed, dry, away from sunlight, moisture and frost\u003c\/li\u003e\u003cli\u003eFor detailed application methods, coverage rates and technical parameters, refer to the official product data sheet\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eWhat is the difference between Unicell 60 and Unicell 40?\u003c\/h3\u003e\u003cp\u003eUnicell 60 is the highest strength grade for demanding structural repair of high-strength concrete. Unicell 40 is a Class 40 mortar for standard structural repair.\u003c\/p\u003e\u003ch3\u003eHow to purchase?\u003c\/h3\u003e\u003cp\u003eContact us via WhatsApp for pricing and availability. Collection from Mong Kok store or Hong Kong delivery available.\u003c\/p\u003e","brand":"Sika Ronacrete 西卡永聯結","offers":[{"title":"Default Title","offer_id":43686301008022,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/hk-02-en-HK-Unicell-60-01-1x1-00940144.webp?v=1716652851"},{"product_id":"西卡永聯結-sika-ronacrete-unicell-primer","title":"Sika Ronacrete Unicell Primer","description":"\u003cdiv class=\"tldr-box\" style=\"background:#f0f4f8;border-left:4px solid #2c5282;padding:16px;margin-bottom:24px\"\u003e\u003cstrong\u003eQuick Summary:\u003c\/strong\u003e\u003cp\u003eUnicell Primer is a liquid bonding primer and rebar passivation agent from Sika Ronacrete. Mixed with OPC and brush-applied to exposed reinforcement to form a corrosion-inhibiting layer, while also enhancing bond between repair mortars and concrete substrate.\u003c\/p\u003e\u003c\/div\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eRebar passivation\u003c\/strong\u003e — forms anti-corrosion barrier on steel\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eBond enhancement\u003c\/strong\u003e — significantly improves mortar-to-substrate adhesion\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eWaterproof barrier\u003c\/strong\u003e — blocks moisture and harmful ion penetration\u003c\/li\u003e\u003cli\u003eWater-based, low VOC\u003c\/li\u003e\u003cli\u003eSimple to mix with cement and apply\u003c\/li\u003e\u003cli\u003eEconomical\u003c\/li\u003e\u003cli\u003eDesigned for Unicell range, also compatible with other cementitious mortars\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eUnicell Concrete Repair System\u003c\/h2\u003e\u003col\u003e\u003cli\u003e\u003cstrong\u003eStep 1: Unicell Primer\u003c\/strong\u003e — rebar primer + substrate bond coat\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eStep 2: Unicell 25 or 40\u003c\/strong\u003e — repair mortar to fill spalled areas\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eStep 3: Surface finish\u003c\/strong\u003e — render or paint\u003c\/li\u003e\u003c\/ol\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eRebar corrosion protection in reinforced concrete\u003c\/li\u003e\u003cli\u003eSubstrate priming before concrete repair\u003c\/li\u003e\u003cli\u003eBond enhancement for thin\/thick mortar\u003c\/li\u003e\u003cli\u003eMortar screed and render priming\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eWhy Choose Unicell Primer\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eDual function:\u003c\/strong\u003e bonding primer and rebar passivation in one\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eHigh bond strength:\u003c\/strong\u003e exceeds HKHA requirements when used with Unicell mortars\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eLow VOC, eco-friendly:\u003c\/strong\u003e water-based formula\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eEconomical\u003c\/strong\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003ePackaging\u003c\/h2\u003e\u003ctable\u003e\u003cthead\u003e\u003ctr\u003e\u003cth\u003eItem\u003c\/th\u003e\u003cth\u003eSpecification\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003eSizes\u003c\/td\u003e\u003ctd\u003e5 litre \/ 30 litre containers\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eAppearance\u003c\/td\u003e\u003ctd\u003eMilky white liquid (turns blue when mixed with OPC)\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eStorage\u003c\/td\u003e\u003ctd\u003eSealed original packaging, cool location, away from sunlight and frost\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eComparison: Unicell Primer vs Mapefer vs Fosroc Primer\u003c\/h2\u003e\u003ctable\u003e\u003cthead\u003e\u003ctr\u003e\u003cth\u003eProduct\u003c\/th\u003e\u003cth\u003eBrand\u003c\/th\u003e\u003cth\u003eFunction\u003c\/th\u003e\u003cth\u003eKey Feature\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eUnicell Primer\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003eSika Ronacrete\u003c\/td\u003e\u003ctd\u003eRebar primer + bond coat\u003c\/td\u003e\u003ctd\u003eDual function, pairs with Unicell mortars\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eMapefer 1K\u003c\/td\u003e\u003ctd\u003eMapei\u003c\/td\u003e\u003ctd\u003eRebar protection\u003c\/td\u003e\u003ctd\u003eDedicated anti-corrosion, pairs with Planitop\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eFosroc Primer 7\u003c\/td\u003e\u003ctd\u003eFosroc\u003c\/td\u003e\u003ctd\u003eEpoxy primer\u003c\/td\u003e\u003ctd\u003ePairs with Renderoc range\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eOptimix PE\u003c\/td\u003e\u003ctd\u003eOptimix\u003c\/td\u003e\u003ctd\u003eBonding agent + protection\u003c\/td\u003e\u003ctd\u003eSBR polymer, pairs with RM range\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eImportant Notes\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eRemove all defective concrete to sound substrate; clean loose rust\u003c\/li\u003e\u003cli\u003eCut repair edges to adequate depth to avoid feather edges\u003c\/li\u003e\u003cli\u003eMix with cement using low-speed drill\u003c\/li\u003e\u003cli\u003eAllow rebar coat to dry, then apply bond coat to rebar and concrete surface\u003c\/li\u003e\u003cli\u003eApply repair mortar (Unicell 25\/40\/WF) while bond coat is still wet\/tacky\u003c\/li\u003e\u003cli\u003eIf primer dries, re-apply before proceeding\u003c\/li\u003e\u003cli\u003eFor detailed application methods, coverage rates and technical parameters, refer to the official product data sheet\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eWhat is the difference between Unicell Primer and Mapefer?\u003c\/h3\u003e\u003cp\u003eUnicell Primer is a liquid polymer that requires mixing with cement — provides both bonding and rebar passivation. Mapefer 1K is a ready-to-use cementitious anti-corrosion mortar. Match primer to repair mortar brand: Unicell Primer with Unicell, Mapefer with Mapei.\u003c\/p\u003e\u003ch3\u003eIs primer mandatory?\u003c\/h3\u003e\u003cp\u003eFor exposed rebar, strongly recommended for corrosion protection. Even for surface repairs without exposed steel, primer significantly improves bond strength and reduces future debonding risk.\u003c\/p\u003e","brand":"Sika Ronacrete 西卡永聯結","offers":[{"title":"Default Title","offer_id":43686304252054,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/hk-02-en-HK-Unicell-Primer-01-1x1-00590065.webp?v=1716652991"},{"product_id":"馬貝-mapei-mapefer-1k-5kg","title":"Mapei Mapefer 1K","description":"\u003cp\u003e\u003cstrong\u003eOne-Component Corrosion-Inhibiting Cement Mortar for the Protection of Reinforcing Rods\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMapefer 1K is a one-component mortar designed for protecting reinforcing rods from corrosion and improving the adhesion of concrete repair mortars. This product is formulated by MAPEI Research \u0026amp; Development laboratories, incorporating powdered polymers, cementitious binders, and corrosion inhibitors.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Alkalinity\u003c\/strong\u003e: Provides excellent corrosion protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Metal Adhesion\u003c\/strong\u003e: Ensures strong bonding between reinforcement and mortar.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion Inhibitors\u003c\/strong\u003e: Effectively prevents rust formation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt Fog Resistant\u003c\/strong\u003e: Complies with EN 15183 standards, impermeable to water and aggressive gases after hardening.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Component\u003c\/strong\u003e: Easy to mix and apply, ensuring convenience during application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Uses\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion Protection for Reinforcing Rods\u003c\/strong\u003e: Ideal for use with shrinkage-compensated mortars from the Mapegrout range or standard cement mortars modified with synthetic-based latex during concrete repairs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnderground Concrete Structures\u003c\/strong\u003e: Suitable for protecting reinforcement in underground concrete construction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdhesion Improvement\u003c\/strong\u003e: Enhances the adhesion of concrete repair mortars, ensuring effective repairs.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mapei 馬貝","offers":[{"title":"Default Title","offer_id":43686383091862,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/4_00453_mapefer-1k-5kg-int-952741-ufi-alu-2021_119bfd4052204f0b8df4ce39e96a59d2.png?v=1716655734"},{"product_id":"馬貝-mapei-hb25-25kg","title":"Mapei HB25","description":"\u003cp\u003ePlanitop HB25 is a polymer-modified cementitious repair mortar designed for repairing vertical or overhead concrete surfaces. This mortar has medium mechanical performance characteristics and can be applied to substantial thickness without the need for formwork.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Adhesion\u003c\/strong\u003e: Superior adhesion to existing concrete surfaces provided they are saturated with water and reinforcing bars are treated with Mapefer before application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGood Mechanical Performance\u003c\/strong\u003e: Designed flexural and compressive strength, with modulus of elasticity, thermal expansion coefficient, and permeability coefficient similar to that of medium quality concrete.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Application\u003c\/strong\u003e: Forms an easy-to-apply thixotropic mortar that can be applied without sagging, even on vertical and overhead surfaces, in substantial thickness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEco-Friendly Formula\u003c\/strong\u003e: Free from chlorides, making it environmentally friendly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTypical Usage\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConcrete Surface Repair\u003c\/strong\u003e: Repair deteriorated concrete surfaces and soffits of beams damaged by rusted reinforcing bars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Repairs\u003c\/strong\u003e: Quick repairs to vertical, horizontal, overhead concrete, or mortar surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Area Reinforcement Cover Reconstruction\u003c\/strong\u003e: Reconstruction of concrete coverings of reinforcing bars over large areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface Irregularity Repair\u003c\/strong\u003e: Repair surface irregularities including exposed aggregate, joints between new and old concrete, holes in formwork concrete, protruding steel, etc.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"Mapei 馬貝","offers":[{"title":"Default Title","offer_id":43686410911894,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/4_planitophb25_871c189657e74bc680a0185ec40fc17d.png?v=1719569682"},{"product_id":"馬貝-mapei-hb40-25kg","title":"Mapei HB40","description":"\u003cp\u003eMapei HB40 - professional construction and waterproofing material available from Wah Hing Waterproofing in Hong Kong.\u003c\/p\u003e","brand":"Mapei 馬貝","offers":[{"title":"Default Title","offer_id":43686411305110,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/4_planitophb40_a43b9c2f674949a2bdc872b3807a63a7.png?v=1719569661"},{"product_id":"sika-西卡-sikarep®-25-hb-25料","title":"Sika SikaRep-25 HB","description":"\u003cdiv class=\"tldr-box\" style=\"background:#f0f4f8;border-left:4px solid #2c5282;padding:16px;margin-bottom:24px\"\u003e\n\u003cstrong\u003eSummary:\u003c\/strong\u003e\u003cp\u003eSikaRep-25 HB is a general purpose Class 25 polymer fibre reinforced cementitious repair mortar for repairing concrete spalling, honeycombing, and surface damage. Can be built up to 50 mm without shuttering. Pot life approximately 40 minutes. Available in 18 kg bags.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eSikaRep-25 HB — General Purpose Class 25 Fibre Reinforced Repair Mortar\u003c\/h2\u003e\n\u003cp\u003eSikaRep-25 HB is a Class 25 cementitious repair mortar reinforced with polymer fibres for improved mechanical properties. It is designed for repairing concrete spalling, honeycombing, and damaged concrete surfaces. Its lightweight nature allows thick layers to be applied on vertical and overhead surfaces. The mortar is factory pre-blended for consistent on-site quality, non-toxic, and suitable for use as a rendering substrate.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eContains polymer fibre for enhanced mechanical strength and durability\u003c\/li\u003e\n\u003cli\u003eGood workability, easy to apply\u003c\/li\u003e\n\u003cli\u003eHigh build capability — 6 to 50 mm without shuttering\u003c\/li\u003e\n\u003cli\u003eFactory pre-blended for consistent quality\u003c\/li\u003e\n\u003cli\u003eGood adhesion (7-day tensile adhesion strength excellent)\u003c\/li\u003e\n\u003cli\u003eNon-toxic and safe\u003c\/li\u003e\n\u003cli\u003eSuitable for rendering\u003c\/li\u003e\n\u003cli\u003ePot life approximately 40 minutes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRepair of concrete spalling, honeycombing, and surface damage\u003c\/li\u003e\n\u003cli\u003eCeilings, walls, beams, columns, and other structural elements\u003c\/li\u003e\n\u003cli\u003eInterior and exterior concrete repair and maintenance\u003c\/li\u003e\n\u003cli\u003eThick layer repair on vertical and overhead surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose SikaRep-25 HB?\u003c\/h2\u003e\n\u003cp\u003eSikaRep-25 HB is particularly well-suited for concrete repair projects in Hong Kong:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eLightweight high build:\u003c\/strong\u003e Can be built up to 50 mm on vertical and overhead surfaces without shuttering\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFibre reinforced:\u003c\/strong\u003e Polymer fibres enhance crack resistance and durability\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePre-blended quality:\u003c\/strong\u003e Factory pre-mixed, just add water on site for consistent results\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWorkable:\u003c\/strong\u003e Pot life of approximately 40 minutes, suitable for large-area application\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePackaging \u0026amp; Consumption\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth\u003eItem\u003c\/th\u003e\u003cth\u003eSpecification\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003ePackaging\u003c\/td\u003e\u003ctd\u003e18 kg bag\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eColour\u003c\/td\u003e\u003ctd\u003eConcrete grey\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eConsumption\u003c\/td\u003e\u003ctd\u003eApprox. 83 bags\/m³ (depending on substrate and application method)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eMixing Ratio\u003c\/td\u003e\u003ctd\u003eApprox. 3.3 litres water per 18 kg bag (water:powder = 1:5.45 by weight)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLayer Thickness\u003c\/td\u003e\u003ctd\u003eMinimum 6 mm, maximum 50 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth\u003eProperty\u003c\/th\u003e\u003cth\u003eValue\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eChemical Base\u003c\/td\u003e\u003ctd\u003eCement-based powder\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eDensity (wet mix)\u003c\/td\u003e\u003ctd\u003eApprox. 1.78 kg\/L\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCompressive Strength (28 days)\u003c\/td\u003e\u003ctd\u003emeets Class 25 standard\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eTensile Strength (7 days)\u003c\/td\u003e\u003ctd\u003eexcellent\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eTensile Adhesion Strength (7 days)\u003c\/td\u003e\u003ctd\u003eexcellent\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePot Life\u003c\/td\u003e\u003ctd\u003eApprox. 40 minutes\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eShelf Life\u003c\/td\u003e\u003ctd\u003e9 months from date of production (unopened, stored in cool dry conditions)\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate must be sound, clean, free of oil and loose materials, and dampened with clean water before application\u003c\/li\u003e\n\u003cli\u003eA bonding coat slurry of Sika Latex mixed with cement should be applied to the substrate before applying SikaRep-25 HB\u003c\/li\u003e\n\u003cli\u003eFor repairs exceeding 50 mm, apply in layers, ensuring each layer has sufficiently hardened before the next\u003c\/li\u003e\n\u003cli\u003eIf the previous layer is over 48 hours old, scabble the surface and re-dampen\u003c\/li\u003e\n\u003cli\u003eProtect from direct sunlight and wind during curing — cover with wet hessian or curing membrane\u003c\/li\u003e\n\u003cli\u003eClean tools and equipment with water while mortar is still fresh\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eWhat is the difference between SikaRep-25 HB and Renderoc HB25?\u003c\/h3\u003e\n\u003cp\u003eBoth are Class 25 repair mortars with similar functionality. SikaRep-25 HB is manufactured by Sika and contains polymer fibre reinforcement. Renderoc HB25 is manufactured by Fosroc. The choice typically depends on the brand specified for the project.\u003c\/p\u003e\n\n\u003ch3\u003eHow to choose between Class 25 and Class 40 repair mortar?\u003c\/h3\u003e\n\u003cp\u003eClass 25 mortar is suitable for general repair work with 28-day compressive strength exceedingmeets Class 25 standard. Class 40 offers higher strength for structural repairs. Use Class 25 for general maintenance and Class 40 for structural applications.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the pot life of SikaRep-25 HB?\u003c\/h3\u003e\n\u003cp\u003eAccording to the product data sheet, the pot life is approximately 40 minutes. The mortar should be packed firmly into the repair cavity using a rendering technique rather than placing, to ensure thorough compaction and eliminate voids.\u003c\/p\u003e","brand":"Sika 西卡","offers":[{"title":"Default Title","offer_id":45242482720918,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/sika_SikaRep-25-HB_polimer_fiber_reinforced_mortar_concrete_repair_bags.png?v=1760462903"},{"product_id":"sika-西卡-monotop-612-結構性修補砂漿","title":"Sika MonoTop 612","description":"\u003cdiv class=\"tldr-box\" style=\"background:#f0f4f8;border-left:4px solid #2c5282;padding:16px;margin-bottom:24px\"\u003e\u003cstrong\u003eSummary:\u003c\/strong\u003e\u003cp\u003eSika MonoTop-612 is a single-component, fibre-reinforced, silica fume-enhanced polymer-modified structural repair mortar complying with EN 1504-3 Class R3. Suitable for vertical and overhead thick-layer repairs. No primer required for hand application, can be applied by hand or spray, fire-rated A1, WRAS approved for drinking water contact.\u003c\/p\u003e\u003c\/div\u003e\u003ch2\u003eMonoTop 612 Features\u003c\/h2\u003e\u003cp\u003eSika MonoTop-612 is a single-component, fibre-reinforced structural repair mortar containing silica fume, complying with EN 1504-3 Class R3 (structural repair grade). Simply add water and mix. Suitable for thick-layer vertical and overhead repairs with high mechanical strength, excellent bond and durability. Generally no primer needed for hand application; also compatible with mechanical wet-spray equipment.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eEN 1504-3 Class R3 structural repair compliance\u003c\/li\u003e\u003cli\u003eFibre-reinforced — excellent crack resistance\u003c\/li\u003e\u003cli\u003eSilica fume enhanced — dense microstructure, high durability\u003c\/li\u003e\u003cli\u003eNo primer for hand application\u003c\/li\u003e\u003cli\u003eHand or mechanical spray application\u003c\/li\u003e\u003cli\u003eFire rating A1 (non-combustible)\u003c\/li\u003e\u003cli\u003eWRAS approved for drinking water contact\u003c\/li\u003e\u003cli\u003eSingle-component, just add water\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eConcrete spalling repair on structures\u003c\/li\u003e\u003cli\u003eThick-layer vertical and overhead repairs\u003c\/li\u003e\u003cli\u003eBridge, tunnel and infrastructure structural restoration\u003c\/li\u003e\u003cli\u003eDrinking water facility concrete repair\u003c\/li\u003e\u003cli\u003eBuilding facade, column and beam concrete repair\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eWhy Choose MonoTop 612?\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eR3 structural grade:\u003c\/strong\u003e Meets structural repair requirements with high mechanical strength\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eNo primer needed:\u003c\/strong\u003e Hand application without additional priming saves steps and time\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eThick single-layer application:\u003c\/strong\u003e Reduces number of application layers for efficiency\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eDrinking water certified:\u003c\/strong\u003e WRAS approved for concrete facilities in contact with potable water\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eFlexible application:\u003c\/strong\u003e Hand trowel or mechanical spray — both effective\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003ePackaging\u003c\/h2\u003e\u003cp\u003eBag supply, contact for specific weights.\u003c\/p\u003e\u003ch2\u003eNotes\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eSubstrate must be clean and sound; remove all loose and deteriorated concrete\u003c\/li\u003e\u003cli\u003eExposed reinforcement must be derusted; consider applying anti-corrosion primer\u003c\/li\u003e\u003cli\u003eWater addition must follow specified ratio precisely\u003c\/li\u003e\u003cli\u003eProper curing required after application to prevent rapid drying\u003c\/li\u003e\u003cli\u003eLow temperatures extend setting time\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eFor detailed application methods, coverage rates and technical parameters, please refer to the official product data sheet.\u003c\/em\u003e\u003c\/p\u003e","brand":"Sika 西卡","offers":[{"title":"Default Title","offer_id":46352836984982,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/Sika_NoClaim_pos_rgb_30_449a8809-8d20-499c-a344-6cca19e07d98.png?v=1776681922"},{"product_id":"sika-西卡-monotop-615hb-高強度混凝土修補砂漿","title":"Sika MonoTop 615HB","description":"\u003cdiv class=\"tldr-box\" style=\"background:#f0f4f8;border-left:4px solid #2c5282;padding:16px;margin-bottom:24px\"\u003e\u003cstrong\u003eSummary:\u003c\/strong\u003e\u003cp\u003eSika MonoTop-615 HB is a Class R4 high-build polymer-modified structural repair mortar containing silica fume and Ferrogard reinforcement corrosion inhibitor. High single-layer thickness capacity, suitable for thick-layer repair and re-profiling of spalled and damaged concrete on buildings, bridges and infrastructure. Hand or spray application.\u003c\/p\u003e\u003c\/div\u003e\u003ch2\u003eMonoTop 615HB Features\u003c\/h2\u003e\u003cp\u003eSika MonoTop-615 HB is a high-build, single-component, polymer-modified cementitious structural repair and re-profiling mortar containing silica fume and crystalline silica-free aggregates. Complies with EN 1504-3 Class R4 (highest structural repair grade) and contains Ferrogard reinforcement corrosion inhibitor for additional steel protection. High single-layer application thickness makes it suitable for large-area damaged concrete restoration.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eEN 1504-3 Class R4 — highest structural repair grade\u003c\/li\u003e\u003cli\u003eContains Ferrogard reinforcement corrosion inhibitor\u003c\/li\u003e\u003cli\u003eHigh build — large single-layer thickness capacity\u003c\/li\u003e\u003cli\u003eSilica fume enhanced — dense microstructure, very high durability\u003c\/li\u003e\u003cli\u003eHigh mechanical strength — suitable for structural-grade repairs\u003c\/li\u003e\u003cli\u003eHand or mechanical spray application\u003c\/li\u003e\u003cli\u003eSingle-component, just add water\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eThick-layer repair and re-profiling of large-area concrete spalling\u003c\/li\u003e\u003cli\u003eBridge, tunnel and elevated road structural repair\u003c\/li\u003e\u003cli\u003eBuilding column, beam and structural element restoration\u003c\/li\u003e\u003cli\u003eRe-profiling to restore original section dimensions\u003c\/li\u003e\u003cli\u003eConcrete repair in dynamic load environments\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eWhy Choose MonoTop 615HB?\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eR4 highest grade:\u003c\/strong\u003e EN 1504-3 highest structural repair classification, maximum mechanical strength\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eFerrogard protection:\u003c\/strong\u003e Contains reinforcement corrosion inhibitor for additional long-term steel protection\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eThick-layer application:\u003c\/strong\u003e High single-layer thickness reduces number of passes, improves efficiency\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eDurable and reliable:\u003c\/strong\u003e Silica fume enhanced microstructure resists carbonation and chloride ingress\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003ePackaging\u003c\/h2\u003e\u003cp\u003eBag supply, contact for specific weights.\u003c\/p\u003e\u003ch2\u003eNotes\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eSubstrate must be clean and sound; remove all loose and deteriorated concrete to solid base\u003c\/li\u003e\u003cli\u003eExposed reinforcement must be derusted and coated with anti-corrosion primer (SikaTop Armatec 110 EpoCem recommended)\u003c\/li\u003e\u003cli\u003eWater addition must follow specified ratio precisely\u003c\/li\u003e\u003cli\u003eProper curing required after application\u003c\/li\u003e\u003cli\u003eLow temperatures extend setting time\u003c\/li\u003e\u003cli\u003eMechanical spray recommended for large-area repairs to improve efficiency\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eFor detailed application methods, coverage rates and technical parameters, please refer to the official product data sheet.\u003c\/em\u003e\u003c\/p\u003e","brand":"Sika 西卡","offers":[{"title":"Default Title","offer_id":46352837083286,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/Sika_NoClaim_pos_rgb_30_f60ced6f-222b-42f8-bb9e-d4371571d753.png?v=1776681927"},{"product_id":"sika-西卡-sika-top-armatec-110-epocem-環氧樹脂防鏽防護塗料","title":"Sika Top Armatec 110 EpoCem","description":"\u003cdiv class=\"tldr-box\" style=\"background:#f0f4f8;border-left:4px solid #2c5282;padding:16px;margin-bottom:24px;\"\u003e\u003cstrong\u003eSummary:\u003c\/strong\u003e\u003cp\u003eSikaTop Armatec-110 EpoCem is a three-component cementitious epoxy resin coating containing corrosion inhibitor, used as a bonding primer and reinforcement corrosion protection in concrete repair works. Uses EpoCem technology for excellent adhesion to both concrete and steel reinforcement, effectively resisting moisture and chloride penetration. Complies with EN 1504-7.\u003c\/p\u003e\u003c\/div\u003e\u003ch2\u003eSikaTop Armatec-110 EpoCem — Bonding Primer and Reinforcement Corrosion Protection\u003c\/h2\u003e\u003cp\u003eSikaTop Armatec-110 EpoCem is a cementitious epoxy resin compensated three-component coating containing corrosion inhibitor, specifically designed as a bonding primer and reinforcement corrosion protection for concrete repair works. Uses Sika's proprietary EpoCem epoxy-cement hybrid technology, combining the adhesion of epoxy resin with the compatibility of cementitious mortar, providing excellent bond to both concrete and steel reinforcement.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eEpoCem epoxy-cement hybrid technology\u003c\/li\u003e\u003cli\u003eDual function: bonding primer + reinforcement corrosion protection\u003c\/li\u003e\u003cli\u003eExcellent adhesion to both concrete and steel reinforcement\u003c\/li\u003e\u003cli\u003eContains corrosion inhibitor to effectively retard steel corrosion\u003c\/li\u003e\u003cli\u003eResists moisture and chloride penetration\u003c\/li\u003e\u003cli\u003eComplies with EN 1504-7\u003c\/li\u003e\u003cli\u003eExcellent compatibility with cementitious repair mortars\u003c\/li\u003e\u003cli\u003eThree-component system with reasonable working time\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eBonding primer for concrete repair — enhances bond between repair mortar and existing concrete\u003c\/li\u003e\u003cli\u003eCorrosion protection coating for exposed reinforcement — protects derusted steel before repair\u003c\/li\u003e\u003cli\u003eUsed with Sika MonoTop repair mortar systems\u003c\/li\u003e\u003cli\u003eBuilding, bridge and infrastructure concrete restoration projects\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eWhy Choose SikaTop Armatec 110 EpoCem?\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eEpoCem technology:\u003c\/strong\u003e Epoxy-cement combination delivers both adhesion and compatibility\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eDual protection:\u003c\/strong\u003e One product solves both bonding and corrosion protection requirements\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eSystem compatible:\u003c\/strong\u003e Pairs with MonoTop 612, 615HB and other repair mortars for complete repair systems\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eEN 1504-7 certified:\u003c\/strong\u003e Meets European concrete repair standard for reinforcement corrosion protection\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eReliable application:\u003c\/strong\u003e Cementitious formula fully compatible with repair mortars — no interface issues\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003ePackaging\u003c\/h2\u003e\u003cp\u003eThree-component kit supply.\u003c\/p\u003e\u003ch2\u003eNotes\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eThree components must be accurately proportioned and mixed\u003c\/li\u003e\u003cli\u003eReinforcement must be derusted to appropriate standard before coating\u003c\/li\u003e\u003cli\u003eUse within pot life after mixing\u003c\/li\u003e\u003cli\u003eRepair mortar must be applied while primer is still fresh and tacky (wet-on-wet application)\u003c\/li\u003e\u003cli\u003eApplication temperature must meet requirements\u003c\/li\u003e\u003cli\u003eSubstrate must be saturated but surface dry (no standing water)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eFor detailed application methods, coverage rates and technical parameters, please refer to the official product data sheet.\u003c\/em\u003e\u003c\/p\u003e","brand":"Sika 西卡","offers":[{"title":"Default Title","offer_id":46352837738646,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/sika-_-sika-top-armatec-110-epocem.jpg?v=1776710628"},{"product_id":"馬貝mapegrout-430-修補英泥","title":"Mapei Mapegrout 430","description":"\u003ch2\u003eMapei Mapegrout 430 — Structural Concrete Repair Mortar\u003c\/h2\u003e\n\u003cp\u003eMapei Mapegrout 430 is a fibre-reinforced, shrinkage-compensated cementitious mortar for structural concrete repair. It is suitable for hand and spray application to restore deteriorated concrete elements to their original profile.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFibre-reinforced for enhanced crack resistance\u003c\/li\u003e\n\u003cli\u003eShrinkage-compensated to prevent drying cracks\u003c\/li\u003e\n\u003cli\u003eHigh compressive and flexural strength\u003c\/li\u003e\n\u003cli\u003eSuitable for hand and spray application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStructural concrete repair and restoration\u003c\/li\u003e\n\u003cli\u003eBridge and infrastructure repair\u003c\/li\u003e\n\u003cli\u003eBuilding column and beam repair\u003c\/li\u003e\n\u003cli\u003eReinforced concrete element restoration\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mapei 馬貝","offers":[{"title":"Default Title","offer_id":46352838918294,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/Untitled_design_0276c88f-70e7-4ee7-9d8a-39f7af8d9a8a.png?v=1776682017"},{"product_id":"馬貝mapegrout-thixotropic-zero-修補英泥","title":"Mapei Mapegrout Thixotropic Zero","description":"\u003ch2\u003eMapei Mapegrout Thixotropic Zero — Zero-Cement Structural Repair Mortar\u003c\/h2\u003e\n\u003cp\u003eMapei Mapegrout Thixotropic Zero is a fibre-reinforced, shrinkage-compensated thixotropic mortar for structural concrete repair. It features zero cement content, using a pozzolanic binder system to minimize efflorescence and ensure long-term durability.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eZero-cement pozzolanic binder system\u003c\/li\u003e\n\u003cli\u003eThixotropic consistency for overhead application\u003c\/li\u003e\n\u003cli\u003eFibre-reinforced and shrinkage-compensated\u003c\/li\u003e\n\u003cli\u003eMinimises efflorescence\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOverhead and vertical structural concrete repair\u003c\/li\u003e\n\u003cli\u003eMarine and coastal structure repair\u003c\/li\u003e\n\u003cli\u003eInfrastructure and bridge concrete restoration\u003c\/li\u003e\n\u003cli\u003eRepair of concrete exposed to chemical attack\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mapei 馬貝","offers":[{"title":"Default Title","offer_id":46352839082134,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/Untitled_design_1122fac2-26d5-4c93-9220-63d540e51807.png?v=1776682025"},{"product_id":"馬貝pianocem-m修補英泥-薄批","title":"Mapei Pianocem M","description":"\u003ch2\u003eMapei Pianocem M — Fine-Grain Smoothing and Repair Mortar\u003c\/h2\u003e\n\u003cp\u003eMapei Pianocem M is a fine-grained cementitious mortar for thin-coat smoothing and cosmetic repair of concrete surfaces. It provides a smooth, uniform finish on concrete walls and ceilings with application thickness from 1mm to 5mm.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFine-grain formula for smooth finishes\u003c\/li\u003e\n\u003cli\u003eApplication thickness from 1mm to 5mm\u003c\/li\u003e\n\u003cli\u003eGood adhesion to concrete substrates\u003c\/li\u003e\n\u003cli\u003eEasy to sand after curing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCosmetic concrete surface smoothing\u003c\/li\u003e\n\u003cli\u003eThin-coat repair of minor surface defects\u003c\/li\u003e\n\u003cli\u003eConcrete ceiling and wall finishing\u003c\/li\u003e\n\u003cli\u003ePre-coating surface preparation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mapei 馬貝","offers":[{"title":"Default Title","offer_id":46352839639190,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/Untitled_design_049170ae-affa-456b-b9b7-3722d96d90c2.png?v=1776682055"},{"product_id":"馬貝planitop-smooth-repair-zero瓷磚膠-r2級","title":"Mapei Planitop Smooth Repair Zero","description":"\u003ch2\u003eMapei Planitop Smooth \u0026amp; Repair Zero — Zero-Cement Thixotropic Repair Mortar\u003c\/h2\u003e\n\u003cp\u003eMapei Planitop Smooth \u0026amp; Repair Zero is a thixotropic, fibre-reinforced, zero-cement repair mortar for concrete. Despite its R2 classification for high performance, this is a structural repair mortar, not a tile adhesive.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eR2 class structural repair mortar\u003c\/li\u003e\n\u003cli\u003eZero-cement pozzolanic binder\u003c\/li\u003e\n\u003cli\u003eThixotropic for vertical and overhead use\u003c\/li\u003e\n\u003cli\u003eFibre-reinforced to reduce cracking\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStructural and cosmetic concrete repair\u003c\/li\u003e\n\u003cli\u003eVertical and overhead concrete restoration\u003c\/li\u003e\n\u003cli\u003eConcrete beam and column repair\u003c\/li\u003e\n\u003cli\u003eRestoration of deteriorated concrete elements\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mapei 馬貝","offers":[{"title":"Default Title","offer_id":46352839835798,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/Untitled_design_2befb9ed-a07c-49cd-9d24-b8e076ee657a.png?v=1776682062"},{"product_id":"weber-偉伯-weberep-polymer-modified-mortar-修補砂漿","title":"Weber Weberep Polymer Modified Mortar","description":"\u003ch2\u003eWeber Weberep Polymer Modified Mortar — Polymer-Modified Concrete Repair Mortar\u003c\/h2\u003e\n\u003cp\u003eWeber Weberep Polymer Modified Mortar is a polymer-modified cementitious mortar for concrete repair and patching. It provides improved adhesion, flexibility, and durability compared to standard cement mortars for restoring deteriorated concrete.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePolymer-modified for enhanced adhesion\u003c\/li\u003e\n\u003cli\u003eGood workability for hand application\u003c\/li\u003e\n\u003cli\u003eShrinkage-compensated to reduce cracking\u003c\/li\u003e\n\u003cli\u003eSuitable for vertical and overhead repairs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConcrete spall and patch repair\u003c\/li\u003e\n\u003cli\u003eStructural concrete element restoration\u003c\/li\u003e\n\u003cli\u003eRepair of reinforced concrete beams and columns\u003c\/li\u003e\n\u003cli\u003eGeneral concrete repair and resurfacing\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weber 偉伯","offers":[{"title":"Default Title","offer_id":46352841506966,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/weber-square_382dd63d-9722-45f7-a747-f235800195b2.png?v=1776682114"},{"product_id":"西卡sikarep-40-hb修補英泥","title":"Sika SikaRep 40 HB","description":"\u003ch2\u003eSikaRep 40 HB — Fibre Reinforced Repair Mortar\u003c\/h2\u003e\n\u003cp\u003eSikaRep 40 HB is a polymer fibre reinforced cementitious repair mortar for concrete repairing and rendering. High-build single-layer application without shuttering, factory preblended for quality control.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003ePolymer fibre reinforced\u003c\/li\u003e\u003cli\u003eGood workability\u003c\/li\u003e\u003cli\u003eHigh build without shuttering\u003c\/li\u003e\u003cli\u003eFactory preblended\u003c\/li\u003e\u003cli\u003eSuitable for rendering\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003ePackaging\u003c\/h3\u003e\n\u003ctable\u003e\u003cthead\u003e\u003ctr\u003e\u003cth\u003eProduct\u003c\/th\u003e\u003cth\u003eSize\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003eSikaRep 40 HB\u003c\/td\u003e\u003ctd\u003e25 kg bag\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003csmall\u003eFor detailed technical data, refer to the Sika TDS.\u003c\/small\u003e\u003c\/p\u003e\n","brand":"Sika 西卡","offers":[{"title":"Default Title","offer_id":46352841605270,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/sikarep-40-hb.jpg?v=1776710981"},{"product_id":"optimix-奧迪美-rm770-噴塗維修砂漿","title":"Optimix RM770 Spray Repair Mortar","description":"\u003ch2\u003eOptimix RM770 — Spray-Applied Repair Mortar\u003c\/h2\u003e\n\u003cp\u003eOptimix RM770 is a factory-mixed, polymer-modified cementitious repair mortar designed for spray (shotcrete) application. It is used for structural concrete repair, resurfacing, and building up profiles on vertical and overhead surfaces.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSpray-applied for fast, large-area repair\u003c\/li\u003e\n\u003cli\u003ePolymer-modified for improved adhesion and durability\u003c\/li\u003e\n\u003cli\u003eLow rebound for efficient material usage\u003c\/li\u003e\n\u003cli\u003eSuitable for vertical and overhead application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStructural concrete repair by spraying\u003c\/li\u003e\n\u003cli\u003eBuilding facade repair and resurfacing\u003c\/li\u003e\n\u003cli\u003eBridge and infrastructure concrete repair\u003c\/li\u003e\n\u003cli\u003eTunnel lining repair\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Optimix 奧迪美","offers":[{"title":"Default Title","offer_id":46352841867414,"sku":null,"price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/files\/optimix-_-rm770.jpg?v=1776707392"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/collections\/6f5508eb7d1a319709eba87b6c7bcc50.png?v=1776667333","url":"https:\/\/wahhingwp.com\/en\/collections\/%e7%9f%b3%e5%b1%8e%e4%bf%ae%e8%a3%9c-%e5%a3%ab%e6%b3%a2%e6%8b%8e.oembed?page=2","provider":"華興建築防水材料有限公司","version":"1.0","type":"link"}