{"product_id":"premium-builders-silicone-brown-300ml-sealant","title":"Builders Silicone Sealant – Brown – Indoor \u0026 Outdoor Use","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThis Premium 450 Builders Silicone, available in a 300ml cartridge, is a low modulus, neutral cure silicone sealant perfect for general construction, perimeter, and façade applications. It provides superior adhesion to various building materials, including glass, metal, wood, PVCu, and polycarbonate, forming a durable, flexible, and weather-resistant joint. The non-corrosive formula ensures compatibility with sensitive metals like copper, zinc, and lead, while maintaining elasticity under movement conditions up to ±25%. Ideal for both internal and external perimeter pointing, expansion joints, and panel sealing, this silicone performs reliably in diverse building environments. The brown color offers a warm, complementary tone, suitable for use with timber, brick, and darker architectural finishes.\u003c\/p\u003e\u003cdiv style=\"margin-top:30px;\"\u003e\n\u003ch2 style=\"font-size:22px;font-weight:700;color:#1a1a2e;margin-bottom:16px;\"\u003eProduct Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #e0e0e0;border-radius:4px;overflow:hidden;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#1a1a2e;\"\u003e\n\u003cth style=\"padding:12px 16px;text-align:left;color:#ffffff;font-weight:600;text-transform:uppercase;font-size:12px;letter-spacing:0.5px;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding:12px 16px;text-align:left;color:#ffffff;font-weight:600;text-transform:uppercase;font-size:12px;letter-spacing:0.5px;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background:#f8f9fa;\"\u003e\n\u003ctd style=\"padding:12px 16px;font-weight:600;color:#333;border-bottom:1px solid #e9ecef;width:45%;\"\u003eSize\u003c\/td\u003e\n\u003ctd style=\"padding:12px 16px;color:#555;border-bottom:1px solid #e9ecef;\"\u003e300ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#ffffff;\"\u003e\n\u003ctd style=\"padding:12px 16px;font-weight:600;color:#333;border-bottom:1px solid #e9ecef;width:45%;\"\u003eSales Unit\u003c\/td\u003e\n\u003ctd style=\"padding:12px 16px;color:#555;border-bottom:1px solid #e9ecef;\"\u003eEach\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f8f9fa;\"\u003e\n\u003ctd style=\"padding:12px 16px;font-weight:600;color:#333;border-bottom:1px solid #e9ecef;width:45%;\"\u003eColour\u003c\/td\u003e\n\u003ctd style=\"padding:12px 16px;color:#555;border-bottom:1px solid #e9ecef;\"\u003eBrown\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eFeatures \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeutral Cure Formulation\u003c\/strong\u003e: Compatible with metal, glass, and composite substrates without surface damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Modulus Flexibility\u003c\/strong\u003e: Accommodates joint movement up to ±25% for long-term sealing in dynamic joints.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Adhesion Strength\u003c\/strong\u003e: Bonds securely to glass, metals, plastics, wood, and painted surfaces without priming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather and UV Resistant\u003c\/strong\u003e: Maintains flexibility and appearance under exposure and temperature variations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePaint Compatibility\u003c\/strong\u003e: Resists plasticiser migration, suitable with both water and solvent-based paints.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrown Colour Finish\u003c\/strong\u003e: Provides a rich joint line ideal for timber frames, brickwork, and brown-toned cladding.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerimeter Pointing\u003c\/strong\u003e: Seals around PVCu, timber, and metal frames.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpansion Joints\u003c\/strong\u003e: Ideal for joints requiring flexibility and durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePanel and Façade Sealing\u003c\/strong\u003e: Suitable for pre-formed panels and building elements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoof and Parapet Sealing\u003c\/strong\u003e: Waterproofs junctions and terminations on roofing systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlazing Applications\u003c\/strong\u003e: For glass-to-glass, glass-to-aluminium, and glazing repair work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal and Leadwork\u003c\/strong\u003e: Seals joints in soft metals like lead, copper, and zinc.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface Preparation\u003c\/strong\u003e: Ensure surfaces are dry, clean, and free from dust or oil before application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePriming\u003c\/strong\u003e: Generally not required; test a small area if adhesion is uncertain.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"londonbricks-uk.co.uk","offers":[{"title":"Brown","offer_id":55516399567233,"sku":"MM_LB1301","price":21.4,"currency_code":"GBP","in_stock":true},{"title":"Clear","offer_id":55516399600001,"sku":"MM_LB1302","price":21.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/5329\/3624\/files\/d65d0a20e45c135d1872f2f743befdaa.png?v=1775833579","url":"https:\/\/londonbricks-uk.co.uk\/products\/premium-builders-silicone-brown-300ml-sealant","provider":"London Bricks UK","version":"1.0","type":"link"}