{"product_id":"flashpoint-grey-lead-sealant-310mm-tube","title":"Flashpoint Grey Lead Sealant 310mm tube","description":"Flashpoint is a high-performance, neutral cure silicone sealant specifically designed for pointing work between lead and brick or masonry. Whether you're working on a flashing installation or repair, Flashpoint offers a cleaner, quicker, and more reliable alternative to traditional mortar.\n\nUnlike mortar, which can crack or fail over time due to movement, Flashpoint remains flexible and strong, accommodating the natural expansion and contraction of both lead and masonry in response to temperature changes.\n\n\u003ch3\u003eWhy Choose Flashpoint Over Mortar?\u003c\/h3\u003e\n\nTraditional mortar joints often struggle to keep up with the movement of lead in changing weather conditions. Over time, this can cause cracking and gaps, allowing water to seep through. Flashpoint eliminates this problem by forming a permanent, flexible, and waterproof joint.\n\nWith a life expectancy of up to 20 years, Flashpoint ensures long-term protection and professional results. It’s easier to work with, bonds quickly, and doesn’t require the same setting or curing conditions as mortar—making it ideal for year-round use.\n\n\u003ch3\u003eKey Performance Benefits\u003c\/h3\u003e\n\nProvides excellent adhesion to both lead and masonry\n\nNeutral cure formula avoids the white staining caused by acid-cure silicones\n\nFlexible and durable – moves with the building materials\n\nCan be applied in extreme temperatures, even as low as -65°C\n\nRecommended by the Lead Sheet Association\n\nQuick and easy application – no mess, no hassle\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\nFlashpoint is perfect for:\n\nPointing lead flashings into brick or masonry joints\n\nRepairs where traditional mortar has failed\n\nCold-weather applications where mortar can’t be used\n\nLong-term sealing of lead detailing in roofing or construction projects\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\nSize: 310ml tube\n\nColour: Grey\n\nType: One-part, silicone-based, neutral cure sealant\n\nRecommended for: Lead to masonry\/brick pointing\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003e1. Why is Flashpoint better than traditional mortar?\u003c\/h4\u003e\nFlashpoint is flexible and durable, meaning it moves with the lead and masonry as temperatures fluctuate. Mortar, by contrast, is rigid and can crack over time, especially when exposed to direct sunlight or frost.\n\n\u003ch4\u003e2. Can Flashpoint be used in cold weather?\u003c\/h4\u003e\nYes! One of Flashpoint’s major advantages is its ability to be applied in temperatures as low as -65°C, unlike mortar which contains water and is unsuitable for use in freezing conditions.\n\n\u003ch4\u003e3. Will Flashpoint stain the leadwork?\u003c\/h4\u003e\nNo. Flashpoint uses a neutral cure formula, so it avoids the white staining that acid-cure sealants can cause on lead. This ensures your finish looks clean and professional.\u003cbr\u003e\u003cp\u003eCheck out our full range of \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/roofing-supplies\"\u003eroofing supplies\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eBrowse more \u003ca href=\"https:\/\/jjbuildingmaterials.co.uk\/collections\/lead-accessories\"\u003elead accessories\u003c\/a\u003e available online.\u003c\/p\u003e","brand":"JJ Building Materials","offers":[{"title":"Default Title","offer_id":50433865220438,"sku":"438","price":3.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/4509\/4998\/files\/flashpoint-grey-lead-sealant-310mm-tube-6206258.jpg?v=1772663119","url":"https:\/\/jjbuildingmaterials.co.uk\/products\/flashpoint-grey-lead-sealant-310mm-tube","provider":"JJ Building Materials","version":"1.0","type":"link"}