{"title":"Silicone Sealant","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eExplore our range of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSilicone Sealants\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e at The Concept Store, ideal for sealing gaps, joints, and surfaces in kitchens, bathrooms, windows, doors, and other applications. Designed to provide a flexible, durable, and water-resistant seal, these sealants help prevent leaks and moisture penetration.\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"silicone-sealant-boss-322","title":"Silicone Sealant BOSS 322","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eBOSS 322 100% RTV silicone sealant is a paste-like, one-component material that cures to a tough, rubbery solid when exposed to moisture in the air. Since it will not flow under its own weight, this sealant can be applied overhead or on sidewall joints and surfaces without sagging, slumping, or running off. It will adhere to clean metal, glass, most types of wood, silicone resin, vulcanized silicone rubber, ceramic, natural and synthetic fibre, as well as painted and many plastic surfaces.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eSilicone Sealant “Boss” 322\u003c\/strong\u003e is a premium-grade, versatile sealing and bonding solution designed to meet the needs of both professional and DIY applications. Available in four classic colors—\u003cstrong\u003eClear, White, Black, and Grey\u003c\/strong\u003e—it offers an attractive, long-lasting finish that blends seamlessly with a wide range of surfaces and projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFormulated with \u003cstrong\u003eexcellent adhesion\u003c\/strong\u003e to most common substrates, Boss 322 provides a secure and durable bond on materials including metal, glass, ceramics, wood, plastics, and more. Its \u003cstrong\u003esuperior resistance\u003c\/strong\u003e to weathering, vibration, moisture, ozone, and extreme temperatures ensures performance and reliability even in the harshest indoor or outdoor environments. Whether exposed to blazing sun, heavy rain, or freezing cold, this sealant maintains its integrity without cracking, shrinking, or becoming brittle.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eOne of its standout features is its ability to be \u003cstrong\u003eapplied in sub-zero conditions\u003c\/strong\u003e without compromising extrusion or physical properties—making it ideal for all-season use. The \u003cstrong\u003enon-sagging and non-slumping\u003c\/strong\u003e formula allows precise application on vertical and overhead surfaces without messy drips or uneven coverage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eBoss 322\u003c\/strong\u003e is the go-to choice for a variety of demanding applications, including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAdhering auto and appliance trims, including metal, fabric, and fabric-backed plastics.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eBonding gaskets in heating, ventilation, refrigeration, and cooling units.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eBonding signs and sign letters for both indoor and outdoor displays.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eServing as a \u003cstrong\u003econstruction sealant\u003c\/strong\u003e for sealing expansion joints, gaps, and structural connections.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFilleting and caulking joints in sheet metal stacks, ductwork, and equipment housings.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eActing as a \u003cstrong\u003eformed-in-place gasket\u003c\/strong\u003e for gearboxes, compressors, and pumps.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eProviding reliable glazing for windows, doors, and glass panels.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TheConceptStoreLK","offers":[{"title":"White","offer_id":47151729967342,"sku":"AC002018","price":1525.0,"currency_code":"LKR","in_stock":true},{"title":"Black","offer_id":47151730000110,"sku":"AC002019","price":1525.0,"currency_code":"LKR","in_stock":true},{"title":"Grey","offer_id":47151730032878,"sku":"AC002020","price":1525.0,"currency_code":"LKR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/7452\/9518\/files\/LhkDY3OpQcdWzyYYAsUwzZMFars2BoKUtIJhOVds.webp?v=1762165909"},{"product_id":"silicone-sealant-boss-352-latex-gap","title":"Silicone Sealant BOSS 352 Latex Gap","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eBOSS® 352 paintable sealant forms a tough, flexible, resilient bond to all building material surfaces. It has excellent resistance to water, weathering, and moisture vapour. It also cures to produce a flexible seal that is non-yellowing and mildew-resistant. It is a paintable sealant that is designed for both interior and exterior use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe \u003cstrong\u003eSilicone Sealant \"BOSS\" 352 Latex Gap\u003c\/strong\u003e in white is a high-quality, versatile sealing solution designed to deliver long-lasting performance across a wide range of construction, repair, and finishing applications. Manufactured by \u003cstrong\u003eBOSS\u003c\/strong\u003e, a trusted brand known for professional-grade adhesives and sealants, this product combines ease of application with exceptional sealing strength, making it ideal for both professional tradespeople and DIY users. Supplied in a \u003cstrong\u003e450g pack\u003c\/strong\u003e, it offers ample quantity for multiple uses while ensuring consistent results with each application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFormulated with advanced latex-based technology, this sealant provides an \u003cstrong\u003eeffective solution for waterproofing joints\u003c\/strong\u003e, preventing water penetration and protecting surfaces from moisture-related damage. Once applied and fully cured, it remains \u003cstrong\u003epermanently flexible\u003c\/strong\u003e, allowing it to accommodate slight movements in joints and surfaces without cracking or losing adhesion. This flexibility ensures that the seal maintains its integrity over time, even in environments where minor structural shifts or temperature variations occur.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe \u003cstrong\u003eBOSS 352 Latex Gap\u003c\/strong\u003e sealant is \u003cstrong\u003eslump-resistant\u003c\/strong\u003e, meaning it will not sag or run during vertical or overhead applications, ensuring a neat and precise finish without the need for repeated touch-ups. It is also \u003cstrong\u003epaintable after curing\u003c\/strong\u003e, enabling seamless colour matching with surrounding surfaces for a clean, professional appearance. This makes it particularly valuable in decorative applications where aesthetics are as important as performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDesigned for versatile use, this sealant excels in \u003cstrong\u003efilling cracks and holes before painting\u003c\/strong\u003e, helping to create smooth, even surfaces for a flawless paint finish. It is ideal for \u003cstrong\u003esealing around plasterboard\u003c\/strong\u003e, ensuring that joints and edges are fully protected against moisture and air leakage. It can also be used for \u003cstrong\u003esealing around window and door frames\u003c\/strong\u003e, providing a weather-resistant barrier that improves energy efficiency and prevents draughts.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIn construction and renovation projects, it is perfect for \u003cstrong\u003esealing between light partition walls\u003c\/strong\u003e, creating an effective acoustic and thermal seal while maintaining a professional finish. Its ability to \u003cstrong\u003eseal cracks in brickwork and concrete\u003c\/strong\u003e makes it a valuable tool for both indoor and outdoor repairs, helping to maintain the structural and visual integrity of buildings. Additionally, it performs well in \u003cstrong\u003esealing low-movement joints\u003c\/strong\u003e, ensuring long-term durability without the risk of joint failure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWhether used for \u003cstrong\u003ewaterproofing, gap filling, or surface preparation\u003c\/strong\u003e, the \u003cstrong\u003eSilicone Sealant \"BOSS\" 352 Latex Gap\u003c\/strong\u003e offers reliability, durability, and ease of use in a single product. Its combination of strong adhesion, flexibility, and paintable finish makes it an essential choice for construction professionals, maintenance crews, and homeowners who demand both performance and aesthetics in their sealing solutions.\u003c\/span\u003e\u003c\/p\u003e","brand":"TheConceptStoreLK","offers":[{"title":"Default Title","offer_id":47151730196718,"sku":"AC002023","price":847.0,"currency_code":"LKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/7452\/9518\/files\/ikneXYLD6LvRYjcdNQkeW604Rde1QH66IznNpxof.webp?v=1762165914"},{"product_id":"boss-389-silicone-weather-sealant-sri-lanka","title":"Silicone Weather Sealant BOSS 389+","description":"\u003cp\u003e\u003cstrong\u003eBOSS 389+ Silicone Weather Sealant – Premium Weatherproof Sealant in Sri Lanka\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBOSS 389+ Silicone Weather Sealant\u003c\/strong\u003e is a \u003cstrong\u003epremium-grade, weatherproof sealing solution\u003c\/strong\u003e engineered for superior performance in \u003cstrong\u003edemanding construction, glazing, and maintenance applications\u003c\/strong\u003e. Available in \u003cstrong\u003eblack silicone sealant\u003c\/strong\u003e and \u003cstrong\u003ewhite silicone sealant\u003c\/strong\u003e finishes, it combines \u003cstrong\u003efunctional reliability with aesthetic versatility\u003c\/strong\u003e, making it perfect for a wide range of \u003cstrong\u003ebuilding and home improvement projects in Sri Lanka\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003ePackaged in a convenient \u003cstrong\u003e290ML cartridge\u003c\/strong\u003e, this \u003cstrong\u003eneutral cure silicone sealant\u003c\/strong\u003e is easy to apply and delivers professional results for both \u003cstrong\u003econtractors and DIY projects\u003c\/strong\u003e. Designed for compatibility with all \u003cstrong\u003estructural silicone sealants\u003c\/strong\u003e, the BOSS 389+ is ideal for \u003cstrong\u003eexpansion joint sealing\u003c\/strong\u003e, repair work, new installations, and combined applications.\u003c\/p\u003e\n\u003cp\u003eIts \u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px;\"\u003e\u003cstrong\u003eneutral-cure formulation\u003c\/strong\u003e minimizes the risk of corrosion, making it safe for use on multiple surfaces, including\u003c\/span\u003e anodized aluminium, concrete, cement, wood, ceramics, painted surfaces, ACP (Aluminium Composite Panels), glass, glazed surfaces, and galvanized steel.\u003c\/p\u003e\n\u003cp\u003eWith exceptional \u003cstrong\u003eweatherproofing and waterproofing\u003c\/strong\u003e\u003cspan style=\"box-sizing: border-box; margin: 0px; padding: 0px;\"\u003e, the BOSS 389+ withstands Sri Lanka’s \u003cstrong\u003etropical climate\u003c\/strong\u003e, delivering\u003c\/span\u003e long-lasting durability in both extreme heat and heavy rain. Its \u003cstrong\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\n\u003cp\u003eThe sealant remains \u003cstrong\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\n\u003cp\u003eThis \u003cstrong\u003esilicone sealant in Sri Lanka\u003c\/strong\u003e is the go-to choice for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGlazing applications\u003c\/strong\u003e (windows, doors, glass-to-metal joints)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCurtain walls and façades\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExpansion and control joints\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral-purpose sealing\u003c\/strong\u003e in residential, commercial, and industrial projects\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn summary, the \u003cstrong\u003eBOSS 389+ Silicone Weather Sealant\u003c\/strong\u003e offers unmatched durability, flexibility, and compatibility—ideal for architects, contractors, and homeowners seeking a \u003cstrong\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":1810.0,"currency_code":"LKR","in_stock":true},{"title":"White","offer_id":47151730655470,"sku":"AC002035","price":1810.0,"currency_code":"LKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/7452\/9518\/files\/ejmiGelmYnPPqxwe3Mr091TshPc88plGtvEZ5NXw.webp?v=1762165919"},{"product_id":"boss-flexsil-clear-silicone-sealant-sri-lanka","title":"BOSS Flexsil – Clear Silicone Sealant","description":"\u003cp data-start=\"187\" data-end=\"727\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe \u003cstrong data-start=\"191\" data-end=\"235\"\u003eSilicone Sealant \"BOSS\" Flexsil Clear\u003c\/strong\u003e is a premium-quality, single-component sealant designed to deliver exceptional performance in a wide range of sealing and bonding applications. Supplied in a convenient \u003cstrong data-start=\"405\" data-end=\"414\"\u003e260ML\u003c\/strong\u003e cartridge, it is ready to use straight out of the pack, with \u003cstrong data-start=\"476\" data-end=\"498\"\u003eno mixing required\u003c\/strong\u003e, making application quick, clean, and efficient for both professionals and DIY users. Its \u003cstrong data-start=\"589\" data-end=\"605\"\u003eclear finish\u003c\/strong\u003e ensures a neat and discreet appearance, making it ideal for projects where a seamless and unobtrusive seal is required.\u003c\/span\u003e\u003c\/p\u003e \u003cp data-start=\"729\" data-end=\"1230\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThis high-grade sealant offers \u003cstrong data-start=\"760\" data-end=\"792\"\u003eexcellent weather resistance\u003c\/strong\u003e, allowing it to maintain its integrity and protective properties even when exposed to harsh outdoor conditions such as sunlight, rain, and fluctuating temperatures. Once fully cured, the sealant does not dry out, shrink, or become brittle over time. Instead, it retains a \u003cstrong data-start=\"1065\" data-end=\"1109\"\u003epermanently rubbery and flexible texture\u003c\/strong\u003e, preventing cracks, tears, or splitting, which ensures a long-lasting seal in both interior and exterior applications.\u003c\/span\u003e\u003c\/p\u003e \u003cp data-start=\"1232\" data-end=\"1552\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEngineered to perform reliably across a \u003cstrong data-start=\"1272\" data-end=\"1298\"\u003ewide temperature range\u003c\/strong\u003e, the BOSS GP Flexsil Clear is well-suited for use in Sri Lanka’s varying climate conditions. Its flexibility and adhesion make it a dependable choice for \u003cstrong data-start=\"1453\" data-end=\"1489\"\u003eall general sealing applications\u003c\/strong\u003e, from small household repairs to larger industrial projects.\u003c\/span\u003e\u003c\/p\u003e \u003cp data-start=\"1554\" data-end=\"2088\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe sealant is particularly \u003cstrong data-start=\"1582\" data-end=\"1626\"\u003eideally suited for sealing glass windows\u003c\/strong\u003e, ensuring a secure and weatherproof barrier against moisture and drafts. It is also widely used in \u003cstrong data-start=\"1726\" data-end=\"1753\"\u003eshopfront installations\u003c\/strong\u003e, providing a clean and professional finish while protecting against environmental exposure. For aluminium joints, it offers excellent adhesion and flexibility, preventing leaks and maintaining a polished appearance. In \u003cstrong data-start=\"1973\" data-end=\"1994\"\u003eshowcase assembly\u003c\/strong\u003e, it provides clear, precise, and strong bonding without clouding or discolouring over time.\u003c\/span\u003e\u003c\/p\u003e \u003cp data-start=\"2090\" data-end=\"2540\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eBeyond architectural applications, the BOSS GP Flexsil Clear is also trusted in \u003cstrong data-start=\"2170\" data-end=\"2220\"\u003ebus-body building and automobile manufacturing\u003c\/strong\u003e, where it is used to seal joints, panels, and fixtures for durability, vibration resistance, and aesthetic appeal. This versatility makes it a go-to choice for contractors, builders, and fabricators who require a \u003cstrong data-start=\"2434\" data-end=\"2483\"\u003ereliable, clear, and high-performance sealant\u003c\/strong\u003e that works across multiple materials and environments.\u003c\/span\u003e\u003c\/p\u003e \u003cp data-start=\"2542\" data-end=\"3050\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWhether used for \u003cstrong data-start=\"2559\" data-end=\"2616\"\u003eglass, aluminium, metal, or other compatible surfaces\u003c\/strong\u003e, the BOSS GP Flexsil Clear offers a perfect combination of \u003cstrong data-start=\"2676\" data-end=\"2747\"\u003eease of application, long-term durability, and professional results\u003c\/strong\u003e. Its superior sealing capabilities ensure protection from moisture, air, dust, and vibration, making it an essential product for construction, fabrication, and maintenance tasks. Designed with quality in mind, this clear silicone sealant delivers performance you can depend on, project after project.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp data-start=\"1127\" data-end=\"1283\"\u003e\u003cstrong data-start=\"1127\" data-end=\"1171\"\u003eQ1: Will Flexsil Clear corrode aluminum?\u003c\/strong\u003e\u003cbr\u003eNo—Flexsil uses a neutral (acetoxy) cure that’s safe for aluminum, glass, ceramics, UPVC, and painted surfaces.\u003c\/p\u003e \u003cp data-start=\"1285\" data-end=\"1434\"\u003e\u003cstrong data-start=\"1285\" data-end=\"1337\"\u003eQ2: Is it suitable for wet areas like bathrooms?\u003c\/strong\u003e\u003cbr\u003eYes—it offers waterproof, mildew-resistant sealing with strong flexibility for expansion joints.\u003c\/p\u003e \u003cp data-start=\"2542\" data-end=\"3050\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e \u003c\/span\u003e\u003c\/p\u003e","brand":"TheConceptStoreLK","offers":[{"title":"Default Title","offer_id":47151730688238,"sku":"AC006649","price":825.0,"currency_code":"LKR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/7452\/9518\/files\/eXixQXugBlDZ3g86Rs1n2TaI8SXVNZo4FlvxSEPX.webp?v=1762165926"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/7452\/9518\/collections\/WhatsApp_Image_2026-10-19_at_12.03.07_PM.webp?v=1792391679","url":"https:\/\/agc.lk\/collections\/silicone-sealant.oembed","provider":"The Concept Store","version":"1.0","type":"link"}