{"product_id":"boss-389-silicone-weather-sealant-sri-lanka","title":"SILICONE WEATHER SEALANT BOSS 389+","description":"\u003cp data-start=\"112\" data-end=\"196\"\u003e\u003cstrong data-start=\"112\" data-end=\"194\"\u003eBOSS 389+ Silicone Weather Sealant – Premium Weatherproof Sealant in Sri Lanka\u003c\/strong\u003e\u003c\/p\u003e \u003cp data-start=\"198\" data-end=\"645\"\u003eThe \u003cstrong data-start=\"202\" data-end=\"240\"\u003eBOSS 389+ Silicone Weather Sealant\u003c\/strong\u003e is a \u003cstrong data-start=\"246\" data-end=\"294\"\u003epremium-grade, weatherproof sealing solution\u003c\/strong\u003e engineered for superior performance in \u003cstrong data-start=\"334\" data-end=\"399\"\u003edemanding construction, glazing, and maintenance applications\u003c\/strong\u003e. Available in \u003cstrong data-start=\"414\" data-end=\"440\"\u003eblack silicone sealant\u003c\/strong\u003e and \u003cstrong data-start=\"445\" data-end=\"471\"\u003ewhite silicone sealant\u003c\/strong\u003e finishes, it combines \u003cstrong data-start=\"494\" data-end=\"547\"\u003efunctional reliability with aesthetic versatility\u003c\/strong\u003e, making it perfect for a wide range of \u003cstrong data-start=\"587\" data-end=\"642\"\u003ebuilding and home improvement projects in Sri Lanka\u003c\/strong\u003e.\u003c\/p\u003e \u003cp data-start=\"647\" data-end=\"1012\"\u003ePackaged in a convenient \u003cstrong data-start=\"672\" data-end=\"691\"\u003e290ML cartridge\u003c\/strong\u003e, this \u003cstrong data-start=\"698\" data-end=\"731\"\u003eneutral cure silicone sealant\u003c\/strong\u003e is easy to apply and delivers professional results for both \u003cstrong data-start=\"792\" data-end=\"824\"\u003econtractors and DIY projects\u003c\/strong\u003e. Designed for compatibility with all \u003cstrong data-start=\"862\" data-end=\"894\"\u003estructural silicone sealants\u003c\/strong\u003e, the BOSS 389+ is ideal for \u003cstrong data-start=\"923\" data-end=\"950\"\u003eexpansion joint sealing\u003c\/strong\u003e, repair work, new installations, and combined applications.\u003c\/p\u003e \u003cp data-start=\"1014\" data-end=\"1285\"\u003eIts \u003cstrong data-start=\"1018\" data-end=\"1046\"\u003eneutral cure formulation\u003c\/strong\u003e minimizes the risk of corrosion, making it safe for use on multiple surfaces such as anodized aluminium, concrete, cement, wood, ceramics, painted surfaces, ACP (Aluminium Composite Panels), glass, glazed surfaces, and galvanized steel.\u003c\/p\u003e \u003cp data-start=\"1287\" data-end=\"1636\"\u003eWith exceptional \u003cstrong data-start=\"1304\" data-end=\"1354\"\u003eweatherproofing and waterproofing capabilities\u003c\/strong\u003e, the BOSS 389+ withstands Sri Lanka’s \u003cstrong data-start=\"1393\" data-end=\"1413\"\u003etropical climate\u003c\/strong\u003e, offering long-lasting durability in both extreme heat and heavy rain. Its \u003cstrong data-start=\"1489\" data-end=\"1507\"\u003emedium modulus\u003c\/strong\u003e formula accommodates up to ±25% joint movement, ensuring the seal remains intact even with building expansion and contraction.\u003c\/p\u003e \u003cp data-start=\"1638\" data-end=\"1887\"\u003eThe sealant remains \u003cstrong data-start=\"1658\" data-end=\"1681\"\u003epermanently elastic\u003c\/strong\u003e after curing, preventing cracks and maintaining airtight, watertight protection. Its extended open time provides flexibility during application—perfect for large-scale projects or intricate sealing work.\u003c\/p\u003e \u003cp data-start=\"1889\" data-end=\"1954\"\u003eThis \u003cstrong data-start=\"1894\" data-end=\"1927\"\u003esilicone sealant in Sri Lanka\u003c\/strong\u003e is the go-to choice for:\u003c\/p\u003e \u003cul data-start=\"1955\" data-end=\"2178\"\u003e \u003cli data-start=\"1955\" data-end=\"2023\"\u003e \u003cp data-start=\"1957\" data-end=\"2023\"\u003e\u003cstrong data-start=\"1957\" data-end=\"1981\"\u003eGlazing applications\u003c\/strong\u003e (windows, doors, glass-to-metal joints)\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"2024\" data-end=\"2057\"\u003e \u003cp data-start=\"2026\" data-end=\"2057\"\u003e\u003cstrong data-start=\"2026\" data-end=\"2055\"\u003eCurtain walls and façades\u003c\/strong\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"2058\" data-end=\"2094\"\u003e \u003cp data-start=\"2060\" data-end=\"2094\"\u003e\u003cstrong data-start=\"2060\" data-end=\"2092\"\u003eExpansion and control joints\u003c\/strong\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli data-start=\"2095\" data-end=\"2178\"\u003e \u003cp data-start=\"2097\" data-end=\"2178\"\u003e\u003cstrong data-start=\"2097\" data-end=\"2124\"\u003eGeneral-purpose sealing\u003c\/strong\u003e in residential, commercial, and industrial projects\u003c\/p\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003cp data-start=\"2180\" data-end=\"2469\"\u003eIn summary, the \u003cstrong data-start=\"2196\" data-end=\"2234\"\u003eBOSS 389+ Silicone Weather Sealant\u003c\/strong\u003e offers unmatched durability, flexibility, and compatibility—ideal for architects, contractors, and homeowners seeking a \u003cstrong data-start=\"2355\" data-end=\"2419\"\u003ehigh-performance, long-lasting silicone sealant in Sri Lanka\u003c\/strong\u003e that delivers a professional finish every time.\u003c\/p\u003e","brand":"TheConceptStoreLK","offers":[{"title":"Black","offer_id":47151730622702,"sku":"AC002016","price":1645.0,"currency_code":"LKR","in_stock":false},{"title":"White","offer_id":47151730655470,"sku":"AC002035","price":1645.0,"currency_code":"LKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/7452\/9518\/files\/ejmiGelmYnPPqxwe3Mr091TshPc88plGtvEZ5NXw.webp?v=1762165919","url":"https:\/\/agc.lk\/products\/boss-389-silicone-weather-sealant-sri-lanka","provider":"The Concept Store","version":"1.0","type":"link"}