{"product_id":"gaco-s42-100-silicone-roof-coating","title":"Gaco S42 100% Silicone Roof Coating","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDelivery:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eIN STOCK. Next Day Delivery\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003e(if ordered before 13:00)\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003e\u003cspan\u003eKey Features:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eSize: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e18.9 Ltr \u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eColours: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eWhite,Gray,Tan,Dark Grey\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMaterial: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eHigh-Adhesion 100% Silicone Roof Coating\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eCoverage: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eApprox. 14.8m² per 18.9L pail at the manufacturer’s 1.25 gal \/ 100ft² application rate\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eApplication: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSingle-component, moisture-curing coating\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSolvent Free: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePonding Water Resistance: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSuitable for permanent ponding water\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eShelf Life: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2 Years\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eWarranty: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSystem warranties available up to 20 years\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003e\u003cspan\u003eDescription:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003e\u003cspan\u003eGacoFlex S4200 is a professional-grade, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehigh-adhesion 100% silicone roof coating\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e designed to restore, waterproof and extend the service life of weathered flat and low-pitched roofing systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe advanced solvent-free, single-component formulation cures to form a seamless, flexible and weather-tight elastomeric membrane that protects the existing roof from \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eUV exposure, rain, standing water and normal weathering\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Unlike many conventional roof coatings, GacoFlex S4200 is specifically designed to withstand \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epermanent ponding water\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, helping prevent the coating from softening, bubbling or degrading where water remains on the roof surface. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGacoFlex S4200 offers excellent adhesion and, on many suitable substrates, can be applied \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ewithout a separate primer\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, helping reduce both labour and material requirements. An adhesion test should always be carried out before application to confirm compatibility. Certain substrates, including some single-ply membranes and asphalt-based roofs, may require additional preparation or a specialist primer\/base coat. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe coating is particularly suited to the refurbishment of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emetal roofing, weathered single-ply membranes, polyurethane foam roofing systems and aged SBS, APP and built-up roofing membranes\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. It can also be applied to concrete and existing elastomeric coatings when used with the appropriate GacoFlex primer.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGacoFlex S4200 provides excellent coverage compared with many traditional silicone coating systems. Gaco specifies an application rate of approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1.25 gallons per 100 sq ft\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, equivalent to around \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.7 litres per 9.3m²\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, producing approximately 20 mil wet-film thickness and 18 mil dry-film thickness. This gives an approximate theoretical coverage of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e14.8m² from an 18.9L tin\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, although rough, porous or uneven surfaces may require additional material. \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"https:\/\/gaco.com\/wp-content\/uploads\/2024\/04\/ASP-U87S42-50-20-GACOFLEX%E2%84%A2-U8782-S4200-OVER-ASPHALT.pdf?utm_source=chatgpt.com\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOnce cured, the coating creates a durable, highly flexible membrane with excellent resistance to weathering. GacoFlex S4200 White has approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e95% solids by volume\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e96.5% solids by weight\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, providing a high-build protective coating with minimal solvent content and a VOC level below 50g\/L.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe white finish also provides excellent solar reflectivity, helping reflect solar energy away from the roof surface and reduce heat build-up. Gaco lists an initial solar reflectance of approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e0.87\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for S4200 White. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIdeal for roof refurbishment and preventative maintenance projects, GacoFlex S4200 offers a practical alternative to complete roof replacement by creating a seamless silicone waterproofing membrane directly over suitable existing roof coverings.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e100% silicone elastomeric roof coating\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eHigh-adhesion formulation\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eSolvent-free and single component\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eNo primer required on many suitable substrates\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eWithstands permanent ponding water\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eExcellent resistance to UV and weathering\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eCreates a seamless, weather-tight membrane\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eApprox. 14.8m² coverage per 18.9L pail at 1.25 gal \/ 100ft²\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e95% solids by volume\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eHighly flexible with approximately 196% elongation\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eExcellent white solar-reflective finish\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eSuitable for metal roofs\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eSuitable for weathered single-ply membranes\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eSuitable for polyurethane foam roofing\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eSuitable for aged SBS, APP and built-up roofing systems subject to correct preparation\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eCan be used over concrete and existing elastomeric coatings with the appropriate primer\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eHelps extend the service life of existing roofing systems\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eSuitable for flat and low-slope roof refurbishment\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e2-year shelf life\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eSystem warranties available up to 20 years\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e For asphalt substrates, Gaco recommends \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eGacoFlex A4271 BleedTrap Base Coat\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to reduce potential staining caused by oils migrating from the asphalt. It is required for certain warranted SBS applications. Always carry out an adhesion test and follow the relevant Gaco installation specification before application. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003e\u003cspan\u003eDownloads \u0026amp; Data Sheets:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/gaco.com\/wp-content\/uploads\/2024\/04\/PDS_-_GACOFLEX_S42_SERIES_-_HIGH_ADHESION_100_SILICONE_ROOF_COATING.pdf?utm_source=chatgpt.com\"\u003e\u003cstrong\u003e\u003cspan\u003eGacoFlex S42 Series Product Data Sheet\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/gaco.com\/wp-content\/uploads\/2023\/04\/GW-5-1-GACOFLEX%E2%84%A2-SILICONE-COVERAGE-RATES.pdf?utm_source=chatgpt.com\"\u003e\u003cstrong\u003e\u003cspan\u003eGacoFlex S4200 Application Specifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003cstrong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"GacoFlex","offers":[{"title":"S4200 – White","offer_id":55703070507384,"sku":null,"price":385.0,"currency_code":"GBP","in_stock":true},{"title":"S4222 – Gray","offer_id":55703070540152,"sku":null,"price":385.0,"currency_code":"GBP","in_stock":true},{"title":"S4248 – Tan","offer_id":55703070572920,"sku":null,"price":385.0,"currency_code":"GBP","in_stock":true},{"title":"S4229 – Dark Gray","offer_id":55703070605688,"sku":null,"price":385.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/4601\/files\/GacoFlexS4200WhiteSiliconeCoatingBucket.png?v=1792063077","url":"https:\/\/www.roofingoutlet.co.uk\/products\/gaco-s42-100-silicone-roof-coating","provider":"Roofing Outlet","version":"1.0","type":"link"}