{"product_id":"ronacrete-永聯結-ronafix","title":"Sika Ronacrete Ronafix","description":"\u003cdiv class=\"tldr-box\" style=\"background: #f0f4f8; border-left: 4px solid #2c5282; padding: 16px; margin-bottom: 24px;\"\u003e\n\u003cstrong\u003eQuick Summary:\u003c\/strong\u003e\n\u003cp\u003eRonafix® is Sika Ronacrete's classic SBR mortar admixture, available since 1969. When added to cement mortar, it significantly improves waterproofing, bond strength and compressive strength, allows thin section application down to 6mm, and provides freeze\/thaw resistance after curing. Suitable for internal and external use.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eRonafix Product Features\u003c\/h2\u003e\n\u003cp\u003eRonafix® is a single part modified styrene butadiene (SBR) liquid additive for cement mortars which enhances physical and chemical properties. Mortars containing Ronafix can be applied in thin section (minimum 6mm), and once cured are waterproof and resistant to freeze\/thaw cycling, with monolithic adhesion to building substrates. Ronafix is supplied as a milky white liquid and is diluted with water according to the specified mix design before adding to cement, sand and aggregate. As a priming or bonding coat, Ronafix is used with cement only to provide adhesion between substrate and mortar.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eProven track record since 1969 — over 55 years of proven performance\u003c\/li\u003e\n\u003cli\u003eMortars can be applied in thin section — minimum 6mm\u003c\/li\u003e\n\u003cli\u003eHigh compressive, tensile and flexural strengths\u003c\/li\u003e\n\u003cli\u003eCured mortars are waterproof and resistant to freeze\/thaw cycling\u003c\/li\u003e\n\u003cli\u003eMonolithic adhesion to building substrates\u003c\/li\u003e\n\u003cli\u003eMortars, toppings and renders more resistant to mild chemical attack\u003c\/li\u003e\n\u003cli\u003eLow VOC\u003c\/li\u003e\n\u003cli\u003eSuitable for internal and external use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eFloor Screeds\u003c\/strong\u003e — Thin to thick section high-strength floor screed repairs and overlays\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eConcrete Repair\u003c\/strong\u003e — Spalling and concrete patch repair\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWaterproof Renders\u003c\/strong\u003e — Bathroom, roof and basement waterproof plastering\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSlurry Coats\u003c\/strong\u003e — Levelling and protective slurry coats\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeavy Duty Floor Toppings\u003c\/strong\u003e — Car parks, warehouses and high-traffic areas\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSteel Reinforcement Protection\u003c\/strong\u003e — Anti-corrosion primer and protective coating for rebar\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBedding and Bonding Mortars\u003c\/strong\u003e — Enhanced tile and masonry adhesion\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTanking and Waterproofing\u003c\/strong\u003e — Water tanks and basement waterproofing\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSpatterdash\u003c\/strong\u003e — Base coat to improve adhesion\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBond Coats\u003c\/strong\u003e — Bonding primer between old and new concrete\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSteel Reinforcement Primer\u003c\/strong\u003e — Protection of exposed reinforcement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose Ronafix\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eFeatures\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRonafix\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSika Ronacrete\u003c\/td\u003e\n\u003ctd\u003eSBR Modified\u003c\/td\u003e\n\u003ctd\u003eClassic 1969 formula, 55+ years proven, high compressive strength\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSikaLatex\u003c\/td\u003e\n\u003ctd\u003eSika\u003c\/td\u003e\n\u003ctd\u003eSynthetic Rubber Latex\u003c\/td\u003e\n\u003ctd\u003eImproves bond and reduces shrinkage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNitobond SBR\u003c\/td\u003e\n\u003ctd\u003eFosroc\u003c\/td\u003e\n\u003ctd\u003eSBR Latex\u003c\/td\u003e\n\u003ctd\u003eIndustrial-grade mortar modifier, suitable for tiling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlanicrete Latex\u003c\/td\u003e\n\u003ctd\u003eMapei\u003c\/td\u003e\n\u003ctd\u003eSynthetic Rubber Latex\u003c\/td\u003e\n\u003ctd\u003eImproves mechanical\/adhesion\/waterproofing properties\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePackaging\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Sizes\u003c\/td\u003e\n\u003ctd\u003e5 litre drum, 30 litre drum or 220 litre drum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAppearance \/ Colour\u003c\/td\u003e\n\u003ctd\u003eMilky white liquid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShelf Life\u003c\/td\u003e\n\u003ctd\u003e9 months from date of production\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Conditions\u003c\/td\u003e\n\u003ctd\u003e+5°C to +30°C, protect from direct sunlight and frost\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTechnical Data\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressive Strength (Mix A, 7 days)\u003c\/td\u003e\n\u003ctd\u003e50.5 N\/mm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressive Strength (Mix A, 28 days)\u003c\/td\u003e\n\u003ctd\u003e52.5 N\/mm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShear Bond Strength (Mix A, 7 days)\u003c\/td\u003e\n\u003ctd\u003e9.3 N\/mm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShear Bond Strength (Mix A, 28 days)\u003c\/td\u003e\n\u003ctd\u003e18.1 N\/mm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDynamic Modulus (Mix A, 28 days)\u003c\/td\u003e\n\u003ctd\u003e24.8 KN\/mm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater Vapour Permeability Reduction (p\/c 1:7)\u003c\/td\u003e\n\u003ctd\u003e96.0%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Application Thickness\u003c\/td\u003e\n\u003ctd\u003e6 mm\u003c\/td\u003e\n\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\u003eAs a Mortar Admixture\u003c\/strong\u003e — Mix Ronafix with water at the specified ratio, then add cement and sand to form mortar\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAs a Primer \/ Bond Coat\u003c\/strong\u003e — Mix Ronafix with cement only (no sand) and brush onto the substrate to enhance mortar adhesion\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMix Ratios\u003c\/strong\u003e — Varies by application, typically Ronafix:Water = 1:1 to 3:1. Refer to the product data sheet for details\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e Ambient and substrate temperatures must be above +5°C during application and curing. Store in undamaged, unopened original sealed packaging, protected from direct sunlight and frost. For detailed application guidance, refer to the product data sheet or contact us via WhatsApp.\u003c\/p\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\n\u003ch3\u003eWhat is the difference between Ronafix and other SBR admixtures?\u003c\/h3\u003e\n\u003cp\u003eRonafix is Ronacrete's premium SBR mortar admixture with a proven track record since 1969. Compared to generic SBR products, Ronafix delivers higher compressive and flexural strengths and has over 55 years of proven performance in construction projects worldwide.\u003c\/p\u003e\n\n\u003ch3\u003eCan Ronafix waterproof mortar?\u003c\/h3\u003e\n\u003cp\u003eYes. Mortars modified with Ronafix are waterproof after curing and resistant to freeze\/thaw cycling. According to the product data sheet, water vapour permeability can be reduced by up to 96%. Suitable for bathroom waterproof renders, rooftop waterproofing, basement tanking and more.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I use Ronafix? What are the mix ratios?\u003c\/h3\u003e\n\u003cp\u003eMix Ronafix with water at the specified ratio (typically 1:1 to 3:1 depending on application), then add cement and sand. As a bond coat, mix Ronafix with cement only (no sand) and brush onto the substrate. Refer to the product data sheet for detailed mix designs or contact us via WhatsApp.\u003c\/p\u003e\n\n\u003ch3\u003eWhat pack sizes are available?\u003c\/h3\u003e\n\u003cp\u003eRonafix is available in 5 litre, 30 litre and 220 litre drums. Contact us via WhatsApp for pricing and ordering details. We offer collection from our Mong Kok store and delivery across Hong Kong.\u003c\/p\u003e","brand":"Sika Ronacrete 西卡永聯結","offers":[{"title":"220L","offer_id":43681633271958,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true},{"title":"30L","offer_id":43681633304726,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true},{"title":"5L","offer_id":43681633337494,"sku":"","price":1.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/9027\/1382\/products\/Ronacrete_Ronafix-cover.jpg?v=1672855172","url":"https:\/\/wahhingwp.com\/en\/products\/ronacrete-%e6%b0%b8%e8%81%af%e7%b5%90-ronafix","provider":"華興建築防水材料有限公司","version":"1.0","type":"link"}