{"product_id":"sovereign-sbr-bonding-agent-for-render-screed-repair","title":"Sovereign SBR Bonding Agent - For Render, Screed \u0026 Repair","description":"\u003ch2\u003eSovereign SBR Bonding Agent\u003c\/h2\u003e\n\u003ch3\u003eHigh-Strength Styrene-Butadiene Polymer Additive for Render, Screed \u0026amp; Repair\u003c\/h3\u003e\n\u003cp\u003eA milky-white dispersion of carboxylated styrene-butadiene copolymer specially modified for use as a bonding agent and additive. Unlike PVA, it \u003cstrong\u003edoes not re-emulsify\u003c\/strong\u003e, making it ideal for waterproofing, tanking, and external applications. Provides improved adhesion, flexibility, water\/salt resistance, and durability in cement-based systems.\u003c\/p\u003e\n\u003ch4\u003eKey Benefits\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior adhesion\u003c\/strong\u003e to dense or hard-to-bond substrates—concrete, glass, metal, tile \u0026amp; brick\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhances strength \u0026amp; flexibility\u003c\/strong\u003e, reducing cracking, shrinkage, dusting; improves frost resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved water and salt resistance\u003c\/strong\u003e, supports durable external use and tanking systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon re-emulsifiable\u003c\/strong\u003e—perfect for damp zones, waterproof renders, screeds, and concrete repairs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContains antifoam \u0026amp; antioxidant\u003c\/strong\u003e additives to enhance mix stability and longevity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoosts carbonation protection\u003c\/strong\u003e, safeguarding embedded steel in repairs; increases abrasion resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Details\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e Milky-white liquid, S.G. approx. 1.01, pH 9–11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolids Content:\u003c\/strong\u003e Around 47% polymer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Size:\u003c\/strong\u003e 5 kg tub (also available in larger quantities)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-combustible \u0026amp; eco-friendly\u003c\/strong\u003e – water-based with no fire hazard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTypical Uses \u0026amp; Mix Ratios\u003c\/h4\u003e\n\u003ch5\u003ePrimer Coat\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSBR Bonding Agent:\u003c\/strong\u003e 1 part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater:\u003c\/strong\u003e 5 parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eApply the primer to porous backgrounds. Render can be applied to either wet or dry primer.\u003c\/p\u003e\n\u003ch5\u003eSealer Coat\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSBR Bonding Agent:\u003c\/strong\u003e 1 part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater:\u003c\/strong\u003e 3 parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eApply to the rear and edges of timber before fitting and tiling to reduce moisture ingress. Do not prime the face to be tiled.\u003c\/p\u003e\n\u003ch5\u003eBonding Coat (Slurry)\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSBR Bonding Agent:\u003c\/strong\u003e 1 part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater:\u003c\/strong\u003e 1 part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOPC (Ordinary Portland Cement):\u003c\/strong\u003e 1½ parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eApply the bonding coat while still tacky, before applying renders or screeds.\u003c\/p\u003e\n\u003ch4\u003eSafety \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot classified hazardous\u003c\/strong\u003e, but avoid eye\/skin contact; wear gloves, goggles, and suitable clothing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan cause mild skin\/eye irritation\u003c\/strong\u003e – rinse thoroughly and seek medical advice if necessary\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-flammable\u003c\/strong\u003e, store between +5 °C and +35 °C, protect from frost and direct sun\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEco-aware disposal:\u003c\/strong\u003e Avoid drain contamination; dispose per regulations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eIdeal For\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBonding renders or screeds onto dense, non-porous surfaces\u003c\/li\u003e\n\u003cli\u003eDurable external renders, floor toppings, screeds\u003c\/li\u003e\n\u003cli\u003eConcrete repairs (steel protection, carbonation resistance)\u003c\/li\u003e\n\u003cli\u003eWaterproof\/weak substrates—tanking, damp areas, tanking systems\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DIY Refurb","offers":[{"title":"25 Litre","offer_id":62002187141507,"sku":"30616318","price":132.71,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0222\/7290\/1216\/files\/Sov-Bonding-agent-25L-Pic.png?v=1784111685","url":"https:\/\/build4less.co.uk\/products\/sovereign-sbr-bonding-agent-for-render-screed-repair","provider":"Build4less","version":"1.0","type":"link"}