{"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\n\u003cstrong\u003eAt a Glance:\u003c\/strong\u003e\u003cp\u003eSika MonoTop®-612 is a 1-component, fiber reinforced, silica fume containing, polymer modified structural repair mortar meeting Class R3 of EN 1504-3. Compressive strength approx. 40 MPa, suitable for thick layer repair on vertical and overhead surfaces (5–30 mm). No bonding primer required for manual application, hand and machine applicable, fire rating Euro Class A1, WRAS approved for potable water contact.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eMonoTop 612 Product Features\u003c\/h2\u003e\n\u003cp\u003eSika MonoTop®-612 is a 1-component, fiber reinforced, silica fume containing structural repair mortar meeting the requirements of Class R3 of EN 1504-3. Ready to use with the simple addition of clean water, suitable for thick layer repair on vertical and overhead surfaces. Offers high mechanical resistance, excellent bond strength, and long-term durability. A bonding primer is generally not required when manually applied to a well-prepared roughened substrate.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eClass R3 structural repair mortar to EN 1504-3\u003c\/li\u003e\n\u003cli\u003eFiber reinforced with silica fume for high mechanical strength\u003c\/li\u003e\n\u003cli\u003eNo bonding primer required for manual application\u003c\/li\u003e\n\u003cli\u003eSuitable for hand and machine (wet spray) application\u003c\/li\u003e\n\u003cli\u003eCompressive strength approx. 40 MPa, flexural approx. 8.3 MPa\u003c\/li\u003e\n\u003cli\u003eTensile adhesion strength approx. 1.9 MPa\u003c\/li\u003e\n\u003cli\u003eExcellent finishing quality\u003c\/li\u003e\n\u003cli\u003eNon-corrosive, fire rating Euro Class A1\u003c\/li\u003e\n\u003cli\u003eWRAS approved for contact with potable water\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThick layer repair mortar for vertical and overhead applications (5–30 mm)\u003c\/li\u003e\n\u003cli\u003eLevelling of concrete and mortar surfaces before application of coatings\u003c\/li\u003e\n\u003cli\u003eRestoration of concrete elements\u003c\/li\u003e\n\u003cli\u003eFilling joints between precast elements\u003c\/li\u003e\n\u003cli\u003eRepair of spalling and damaged concrete in buildings, bridges, infrastructure, and superstructure works\u003c\/li\u003e\n\u003cli\u003eStructural restoration (EN 1504-9 Principle 3, methods 3.1 and 3.3)\u003c\/li\u003e\n\u003cli\u003eStructural strengthening — increasing bearing capacity by adding mortar cover (EN 1504-9 Principle 4, method 4.4)\u003c\/li\u003e\n\u003cli\u003ePreserving or restoring passivity — increasing cover to replace contaminated or carbonated concrete (EN 1504-9 Principle 7, methods 7.1 and 7.2)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose MonoTop 612\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eR3 Class Structural Repair\u003c\/strong\u003e — Meets one of the highest repair classes under EN 1504-3, suitable for load-bearing structures\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNo Primer Required\u003c\/strong\u003e — Manual application on well-prepared roughened substrates generally requires no bonding primer, simplifying workflow\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFlexible Application Methods\u003c\/strong\u003e — Hand trowel or machine wet spray, adaptable to different site conditions\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eThick Layer Single Application\u003c\/strong\u003e — Up to 30 mm per layer on vertical and overhead surfaces\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePotable Water Approved\u003c\/strong\u003e — WRAS certified, suitable for water supply facility repairs\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCarbonation Resistant\u003c\/strong\u003e — Carbonation depth does not exceed that of control concrete MC(0.45)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePackaging\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\u003e25 kg bag\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eAppearance \/ Colour\u003c\/td\u003e\u003ctd\u003eGrey powder\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eChemical Base\u003c\/td\u003e\u003ctd\u003eCement, silica fume, polyamide fibers, selected aggregates and additives\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eMaximum Grain Size\u003c\/td\u003e\u003ctd\u003e2.0 mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eDensity (fresh mortar)\u003c\/td\u003e\u003ctd\u003e2.1 kg\/L at +20°C\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eShelf Life\u003c\/td\u003e\u003ctd\u003e12 months (original sealed packaging, dry cool storage, protect from direct sunlight)\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\u003cth\u003eStandard\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eCompressive Strength\u003c\/td\u003e\u003ctd\u003e~40 MPa\u003c\/td\u003e\u003ctd\u003eEN 12190\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eModulus of Elasticity in Compression\u003c\/td\u003e\u003ctd\u003e~25 GPa\u003c\/td\u003e\u003ctd\u003eEN 13412\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eTensile Strength in Flexure (28 days)\u003c\/td\u003e\u003ctd\u003e~8.3 MPa\u003c\/td\u003e\u003ctd\u003eEN 196-1\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eTensile Adhesion Strength\u003c\/td\u003e\u003ctd\u003e~1.9 MPa\u003c\/td\u003e\u003ctd\u003eEN 1542\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRestrained Shrinkage\u003c\/td\u003e\u003ctd\u003e~1.8 MPa\u003c\/td\u003e\u003ctd\u003eEN 12617-4\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRestrained Expansion\u003c\/td\u003e\u003ctd\u003e~1.7 MPa\u003c\/td\u003e\u003ctd\u003eEN 12617-4\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarbonation Resistance\u003c\/td\u003e\u003ctd\u003ed\u003csub\u003ek\u003c\/sub\u003e ≤ control concrete MC(0.45)\u003c\/td\u003e\u003ctd\u003eEN 13295\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eReaction to Fire\u003c\/td\u003e\u003ctd\u003eEuro Class A1\u003c\/td\u003e\u003ctd\u003eDeclared\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eSoluble Chloride Ion Content\u003c\/td\u003e\u003ctd\u003e\u0026lt; 0.03%\u003c\/td\u003e\u003ctd\u003eEN 1015\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eConsumption\u003c\/td\u003e\u003ctd\u003e~18 kg\/m² per cm thickness\u003c\/td\u003e\u003ctd\u003e—\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eYield\u003c\/td\u003e\u003ctd\u003e~16 litres per 25 kg bag\u003c\/td\u003e\u003ctd\u003e—\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLayer Thickness\u003c\/td\u003e\u003ctd\u003eMin. 5 mm \/ Max. 30 mm\u003c\/td\u003e\u003ctd\u003e—\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePot Life\u003c\/td\u003e\u003ctd\u003e30–40 min (20°C)\u003c\/td\u003e\u003ctd\u003e—\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eApplication Temperature\u003c\/td\u003e\u003ctd\u003e+5°C to +30°C\u003c\/td\u003e\u003ctd\u003eAmbient and substrate\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eSystem Structure\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth\u003eFunction\u003c\/th\u003e\u003cth\u003eProduct\u003c\/th\u003e\u003cth\u003eRemarks\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eBonding Primer\u003c\/td\u003e\u003ctd\u003eSikalatex mixed with Portland cement\u003c\/td\u003e\u003ctd\u003eOptional (generally not required for manual application)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eReinforcement Corrosion Protection\u003c\/td\u003e\u003ctd\u003eSikaTop® Armatec® 110 EpoCem®\u003c\/td\u003e\u003ctd\u003eOptional, depends on requirements\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRepair Mortar\u003c\/td\u003e\u003ctd\u003eSika MonoTop®-612\u003c\/td\u003e\u003ctd\u003eClass R3, hand and machine applied\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLevelling Mortar\u003c\/td\u003e\u003ctd\u003eSika MonoTop®-620\u003c\/td\u003e\u003ctd\u003eNormal use levelling\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eApplication Method\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cstrong\u003eSubstrate Preparation\u003c\/strong\u003e — Concrete must be thoroughly cleaned, free from dust, loose material, surface contamination, and materials that reduce bond. Steel reinforcement must be prepared by abrasive blasting or high-pressure water to Sa 2 (ISO 8501-1). Refer to EN 1504-10 for specific requirements\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMixing\u003c\/strong\u003e — Add 3.6 litres of clean water per 25 kg bag. Pour water into container first, gradually add powder while stirring, and mix with a low speed drill (\u0026lt; 500 rpm) for at least 3 minutes until uniform consistency\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e — Thoroughly pre-wet the substrate (recommended 2 hours prior), keeping the surface wet with no standing water. For manual application, first make a scratch coat by firmly pressing a thin layer into the substrate surface, then build up to desired thickness. Finish with a wooden or plastic float or damp sponge\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCuring\u003c\/strong\u003e — Protect fresh mortar immediately from premature drying using appropriate curing methods such as curing compound, moist geotextile membrane, or polythene sheet\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAvoid application in direct sun and\/or strong wind conditions\u003c\/li\u003e\n\u003cli\u003eDo not exceed the recommended water dosage\u003c\/li\u003e\n\u003cli\u003eApply only to sound, prepared substrates\u003c\/li\u003e\n\u003cli\u003eDo not add additional water during surface finishing — this causes discolouration and cracking\u003c\/li\u003e\n\u003cli\u003eProtect freshly applied material from freezing\u003c\/li\u003e\n\u003cli\u003ePot life is temperature dependent: 5°C ~60 min, 20°C ~30–40 min, 30°C ~15–20 min\u003c\/li\u003e\n\u003cli\u003eClean all tools and equipment with water immediately after use; hardened material can only be removed mechanically\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eWhat is the maximum application thickness of MonoTop 612?\u003c\/h3\u003e\n\u003cp\u003eAccording to the technical data sheet, Sika MonoTop 612 can be applied in layers from a minimum of 5 mm to a maximum of 30 mm, suitable for vertical and overhead surfaces. For greater thicknesses, apply in multiple layers.\u003c\/p\u003e\n\n\u003ch3\u003eDoes MonoTop 612 require a bonding primer?\u003c\/h3\u003e\n\u003cp\u003eFor manual application on a well-prepared and roughened substrate, a bonding primer is generally not required. If specified, Sikalatex mixed with Portland cement can be used as a bonding primer. For steel reinforcement corrosion protection, SikaTop Armatec 110 EpoCem can be applied.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the difference between MonoTop 612 and MonoTop 615HB?\u003c\/h3\u003e\n\u003cp\u003eMonoTop 612 is an R3 class repair mortar with a maximum single layer thickness of 30 mm, suitable for general structural repair. MonoTop 615HB is a thick-build repair mortar allowing greater single-layer application thickness, suitable for projects requiring thicker repair layers. Both are fiber reinforced structural repair mortars — the choice depends on required application thickness and project specifications.\u003c\/p\u003e\n\n\u003ch3\u003eHow to calculate MonoTop 612 consumption?\u003c\/h3\u003e\n\u003cp\u003eConsumption is approximately 18 kg per m² per cm of thickness. For example, a 2 cm thick repair requires approximately 36 kg\/m² (about 1.5 bags). Each 25 kg bag mixed with 3.6 litres of water yields approximately 16 litres of mortar. Actual consumption varies with substrate roughness and application thickness.\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","url":"https:\/\/wahhingwp.com\/en\/products\/sika-%e8%a5%bf%e5%8d%a1-monotop-612-%e7%b5%90%e6%a7%8b%e6%80%a7%e4%bf%ae%e8%a3%9c%e7%a0%82%e6%bc%bf","provider":"華興建築防水材料有限公司","version":"1.0","type":"link"}