{"product_id":"rockwool-high-expansion-intumescent-sealant-310ml","title":"Rockwool High Expansion Intumescent Sealant 310ml","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eRockwool High Expansion Intumescent Sealant supplied in 310ml cartridges. Water-based acrylic emulsion sealant containing graphite, designed to reinstate fire resistance and insulation performance in compartment walls and floors where they are penetrated by building services. \u003cbr\u003e\u003cbr\u003eThe sealant expands under heat to seal voids left by combustible materials, preventing the passage of flames, smoke, and hot gases during fire conditions.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eFormulated for use with both combustible and non-combustible services, the sealant provides a reliable, high-expansion barrier for pipes, cables, and insulated metalwork. It reacts at approximately 135°C, rapidly increasing in volume to close openings and restore fire integrity.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eSupplied in easy-to-apply 310ml cartridges, it is suitable for both horizontal and vertical applications, ensuring consistent performance across tested wall and floor constructions.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh expansion performance:\u003c\/strong\u003e Graphite-based intumescent formula expands at 135°C to close gaps and seal penetrations under fire exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile use:\u003c\/strong\u003e Effective around combustible pipes, single cables, cable bundles, and metal pipes with combustible insulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem compatibility:\u003c\/strong\u003e Suitable for use in both wall and floor applications across multiple substrates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEase of application:\u003c\/strong\u003e Ready-to-use, one-part sealant supplied in 310ml cartridges for standard applicator guns.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire reinstatement:\u003c\/strong\u003e Restores the integrity and insulation performance of compartment walls and floors penetrated by services.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial compatibility:\u003c\/strong\u003e Fully compatible with cPVC pipes and a wide range of building materials.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustible pipes:\u003c\/strong\u003e Expands to close voids around plastic and composite service penetrations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCables and cable bunches:\u003c\/strong\u003e Provides a flexible fire seal around grouped electrical services.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal pipes with combustible insulation:\u003c\/strong\u003e Seals annular spaces to maintain compartment integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-service penetrations:\u003c\/strong\u003e Suitable for use in mixed penetrations containing various pipe and cable types.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Ensure all surfaces are clean, dry, and free from oil, dust, or loose particles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Apply using a standard mastic or sealant gun, ensuring full contact with surrounding materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth control:\u003c\/strong\u003e For larger gaps, use appropriate backing material before sealing to maintain correct joint depth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinishing:\u003c\/strong\u003e Smooth surface with a wet spatula or gloved finger within 10 minutes of application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCuring:\u003c\/strong\u003e Allow sealant to fully cure before exposure to water or overpainting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in original containers in cool, dry conditions above 5°C and away from frost.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eCompliance \u0026amp; Performance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial specification:\u003c\/strong\u003e Water-based acrylic emulsion containing graphite intumescent additives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire performance:\u003c\/strong\u003e Tested to reinstate fire integrity and insulation ratings in accordance with BS EN 1366-3 and BS EN 1366-4.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReaction temperature:\u003c\/strong\u003e Expands at approximately 135°C to provide a high-volume pressure seal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Suitable for combustible and non-combustible services, including cPVC pipes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication orientation:\u003c\/strong\u003e Approved for both wall and floor sealing applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental compliance:\u003c\/strong\u003e Water-based formulation, halogen-free, and low-VOC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImportant note:\u003c\/strong\u003e Fire performance is dependent on installation within tested and approved Rockwool FirePro® systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Rockwool","offers":[{"title":"Default Title","offer_id":53771532533871,"sku":"3007215","price":10.56,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9784\/4591\/files\/Rockwool_High_Expansion_Intumescent_Sealant_-_Photo_Resized_2.png?v=1783758660","url":"https:\/\/supplyyard.co.uk\/products\/rockwool-high-expansion-intumescent-sealant-310ml","provider":"Supply Yard","version":"1.0","type":"link"}