{"product_id":"flashseal-elastomeric-flashing-sealant-1-gallon-longlasting-leak","title":"FlashSeal Elastomeric Flashing Sealant 1 Gallon - LongLasting Leak","description":"\u003cp\u003eOur review of FlashSeal Elastomeric Flashing Sealant finds it best for homeowners and roofers who need a durable, flexible fix for leaks at chimneys, stacks, vents, and skylights; the single biggest reason to buy is that it forms a waterproof, permanently flexible membrane that bonds to shingles, metal, and brick for long-lived repairs. It is presented as a practical alternative to tar-based patching, with soap and water cleanup and a 1 gallon size that covers about 28 sq. ft., making it a sensible choice when a custom-fit flashing boot is required without a full roof replacement.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e7 Year Warranty:\u003c\/strong\u003e Provides peace of mind when used with FlashSeal Fabric, covering the product for long-term performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Waterproof Membrane:\u003c\/strong\u003e Dries to a flexible, watertight layer that accommodates thermal movement and settles without cracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad Adhesion:\u003c\/strong\u003e Bonds permanently to asphalt shingles, metal flashings, brick, and common roofing materials for versatile repairs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Application:\u003c\/strong\u003e Applied with a brush for targeted repairs around chimneys, vents, stacks, and skylights, making installation straightforward for pros and experienced DIYers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean Cleanup:\u003c\/strong\u003e Soap and water cleanup removes uncured material, avoiding strong solvents and simplifying jobsite cleanup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoverage:\u003c\/strong\u003e One gallon covers approximately 28 sq. ft., allowing estimation of quantity for typical chimney and flashing repairs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eFlashSeal is aimed at homeowners dealing with recurring leaks around chimney bases, roof penetrations, and skylights who want a permanent, flexible repair without resorting to tar or full flashing replacement. Roofing contractors and maintenance professionals will value the product for its adhesion to multiple materials and the 7 year warranty when paired with reinforcement fabric.\u003c\/p\u003e\n\u003cp\u003eIt is less suitable for those who need a complete roofing overhaul or for users expecting an all-in-one kit, since the product is sold separately from FlashSeal Reinforcement Fabric and the application brush is not included. Novices should be comfortable with roof work or hire a professional for safe, effective installation.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCreates a durable, flexible membrane that resists cracking and outlasts tar-based sealers.\u003c\/li\u003e\n\u003cli\u003eAdheres to a wide range of roofing materials, making it useful for many flashing issues.\u003c\/li\u003e\n\u003cli\u003eSoap and water cleanup is convenient and safer than solvent-based alternatives.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBrush is not included, and reinforcement fabric is required to qualify for the 7 year warranty, adding cost and planning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eFlashSeal Elastomeric Flashing Sealant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e1 gallon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoverage\u003c\/td\u003e\n\u003ctd\u003eApprox. 28 sq. ft. per gallon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuitable Substrates\u003c\/td\u003e\n\u003ctd\u003eAsphalt shingles, metal flashings, brick, roof materials\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCleanup\u003c\/td\u003e\n\u003ctd\u003eSoap and water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eBrush application (brush not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7 year when used with FlashSeal Reinforcement Fabric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFlashSeal is a practical, cost-effective choice for repairing leaks at chimney bases, skylights, and other flashings because it bonds to common roofing materials and remains flexible over time. For homeowners and contractors seeking a long-lasting flash repair that avoids tar, it offers good value when paired with the recommended reinforcement fabric.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this product require reinforcement fabric to work?\u003c\/strong\u003e\u003cbr\u003eIt will form a flexible waterproof membrane on its own, but the 7 year warranty applies only when used with FlashSeal Reinforcement Fabric sold separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat surfaces will FlashSeal adhere to?\u003c\/strong\u003e\u003cbr\u003eIt is formulated to adhere to asphalt shingles, metal flashings, brick, and typical chimney and roofing materials.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do you clean up after application?\u003c\/strong\u003e\u003cbr\u003eUncured material cleans up with soap and water, so no strong solvents are required for cleanup.\u003c\/p\u003e","brand":"ChimneySaver","offers":[{"title":"Default Title","offer_id":48616596111579,"sku":"B072F322VS","price":139.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61w8GJAklZL.__AC_SX300_SY300_QL70_ML2.jpg?v=1778475486","url":"https:\/\/gearmusthave.com\/products\/flashseal-elastomeric-flashing-sealant-1-gallon-longlasting-leak","provider":"GearMustHave","version":"1.0","type":"link"}