{"product_id":"fire-resistant-intumescent-sealant-295ml","title":"Intumescent Sealant – Fire-Resistant – Residential \u0026 Commercial Use","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Fire-Resistant Intumescent Acrylic Sealant in White is provided in a 295ml cartridge. This single-component, emulsion acrylic-based sealant offers fire-resistant and acoustic joint sealing for various fire-rated structures. When exposed to high temperatures above 125°C, it expands over 150% of its original volume, forming an insulating char barrier that prevents the passage of fire, smoke, and toxic gases. Its permanently flexible formulation allows for movement up to ±7.5% without losing adhesion, suitable for joints up to 50mm wide. It maintains stability and finish in interior applications, providing a reliable seal with a curing period of 3 to 5 days at room temperature.\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;\"\u003e295ml\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;\"\u003eWhite\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\u003eFire protection performance\u003c\/strong\u003e: Expands upon heat exposure, creating a protective char that resists fire and smoke for up to 4 hours under tested conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcoustic insulation\u003c\/strong\u003e: Achieves an average noise reduction of 24 dB across the 100–3150 Hz range, ideal for soundproofing partition walls and service penetrations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEase of application\u003c\/strong\u003e: Non-slump formula allows smooth tooling and clean edges on vertical and overhead joints.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast curing\u003c\/strong\u003e: Tack-free in approximately 15 minutes, enabling early overpainting and reduced downtime on site.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable flexibility\u003c\/strong\u003e: Maintains elasticity with over 100% elongation to ISO 8339, ensuring long-term joint integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface compatibility\u003c\/strong\u003e: Bonds well to most construction materials without a primer; suitable for masonry, plasterboard, timber, and coated metals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverpaintable finish\u003c\/strong\u003e: Accepts most water-based and solvent-based paints once cured, matching surrounding finishes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature activation\u003c\/strong\u003e: Intumescent expansion begins at approximately 125°C, providing an active fire-sealing response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum joint width\u003c\/strong\u003e: Designed for use in joints and voids up to 50mm wide, ensuring full seal coverage in structural applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFire-rated joints\u003c\/strong\u003e: Sealing linear gaps and perimeter joints in walls, floors, and partitions to maintain fire compartment integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePenetration seals\u003c\/strong\u003e: Around pipes, conduits, and cables where they pass through fire-rated walls or floors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor and window perimeters\u003c\/strong\u003e: Internal pointing of fire-rated frames to preserve the integrity of compartment lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcoustic control\u003c\/strong\u003e: Reducing airborne sound transmission in partition junctions and service openings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterior use\u003c\/strong\u003e: Ideal for dry, internal building environments requiring both fire resistance and sound insulation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow long does it take to cure?\u003c\/strong\u003e\u003cp\u003eThe sealant cures in approximately 3 to 5 days at room temperature.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan this sealant be painted over?\u003c\/strong\u003e\u003cp\u003eYes, it can be overpainted with most water-based and solvent-based paints once fully cured.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat materials is this sealant compatible with?\u003c\/strong\u003e\u003cp\u003eIt bonds well with masonry, plasterboard, timber, and coated metals without a primer.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"londonbricks-uk.co.uk","offers":[{"title":"Default Title","offer_id":55516401631617,"sku":"MM_LB1338","price":11.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/5329\/3624\/files\/a82e86e0f9986cd2301c8222f216a1c5.png?v=1775833605","url":"https:\/\/londonbricks-uk.co.uk\/products\/fire-resistant-intumescent-sealant-295ml","provider":"London Bricks UK","version":"1.0","type":"link"}