{"product_id":"everbuild-everflex-450-builders-silicone","title":"EVERBUILD EVERFLEX 450 Builders Silicone","description":"EVERBUILD® EVERFLEX® 450 Builders Silicone is a high-performance, low modulus silicone sealant designed for demanding building and glazing applications. It provides a long-lasting, flexible seal with excellent adhesion, making it suitable for both internal and external use across a wide range of materials.\n\n\u003ch3\u003eUsage\u003c\/h3\u003e\n\nEVERFLEX® 450 is commonly used for perimeter pointing around PVCu, timber, and other window frames, both internally and externally. It can also be used for sealing and bonding PVCu trims, plastic components, and soft metals such as lead, copper, and zinc.\n\nThe sealant is suitable for bedding insulated glass units in line with relevant clauses of BS8000 Part 7, as well as for glass-to-glass and glass-to-aluminium sealing. Additional applications include expansion joints, weather sealing of pre-formed panels, parapet and roof sealing, and general glazing and draughtproofing work, including repairs over existing sealant.\n\n\u003ch3\u003eAdvantages\u003c\/h3\u003e\n\nThis builders silicone offers excellent adhesion to most common construction materials, including glass, metals, plastics, and wood. Its low dirt pick-up makes it particularly suitable for PVCu installations, helping maintain a clean finish over time.\n\nEVERFLEX® 450 provides outstanding flexibility of ±25%, allowing it to accommodate movement without failure. It has high resistance to plasticiser migration and can be applied over both water-based and solvent-based paints. The sealant also delivers excellent external weathering performance and is suitable for use on polycarbonate, with shrinkage of less than 5% in accordance with ISO 10563.\n\n\u003ch3\u003ePackaging \u0026amp; Colour Options\u003c\/h3\u003e\n\nEVERBUILD® EVERFLEX® 450 Builders Silicone is supplied in a 300ml cartridge and is available in the following colours:\n\nBuff\n\nBlack\n\nBrown\n\nGrey\n\nTranslucent\n\nWhite\n\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003ch4\u003eIs EVERFLEX® 450 suitable for external use?\u003c\/h4\u003e\n\nYes, it offers excellent weathering resistance and is suitable for long-term external sealing applications.\n\n\u003ch4\u003eCan EVERFLEX® 450 be used on glass and metal?\u003c\/h4\u003e\n\nYes, it is ideal for glass-to-glass and glass-to-metal sealing, including aluminium and soft metals.\n\n\u003ch4\u003eIs this silicone suitable for PVCu window frames?\u003c\/h4\u003e\n\nYes, its low dirt pick-up and strong adhesion make it particularly well suited to PVCu window and door installations.\u003cp\u003eCheck out our other products \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/bonding\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eExplore more from our range \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/sealants-adhesives\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e","brand":"JJ Building Materials","offers":[{"title":"White","offer_id":54802576933206,"sku":"171327","price":4.69,"currency_code":"GBP","in_stock":true},{"title":"Buff","offer_id":54802576965974,"sku":"171328","price":4.69,"currency_code":"GBP","in_stock":true},{"title":"Black","offer_id":54802576998742,"sku":"171329","price":4.69,"currency_code":"GBP","in_stock":true},{"title":"Brown","offer_id":54802577031510,"sku":"171330","price":4.88,"currency_code":"GBP","in_stock":true},{"title":"Grey","offer_id":54802577064278,"sku":"171331","price":4.69,"currency_code":"GBP","in_stock":true},{"title":"Translucent","offer_id":54802577097046,"sku":"171332","price":4.69,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/jjbuildingmaterials.co.uk\/products\/everbuild-everflex-450-builders-silicone","provider":"JJ Building Materials","version":"1.0","type":"link"}