{"product_id":"liquid-rubber-waterproof-sealant-for-flat-low-slope-roofs-5-gallon","title":"Liquid Rubber Waterproof Sealant for Flat \u0026 Low Slope Roofs - 5 Gallon","description":"\u003cp\u003eIn this review the Liquid Rubber Waterproof Sealant is presented as a practical solution for homeowners and contractors who need a flexible, long-lasting barrier against leaks. The bottom line: if you want a water-based, low-odor alternative to roof tar that bonds to metal, concrete and most building substrates, this product delivers a robust waterproof membrane and professional coverage when applied properly. It is especially useful for patching RV roofs, chimneys, gutters and low slope roofs where elasticity and adhesion matter most.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial strength bitumen formula:\u003c\/strong\u003e Forms a seamless waterproof membrane that resists water infiltration on flat roofs, gutters, foundations and concrete surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior flexibility:\u003c\/strong\u003e With high elongation the coating maintains adhesion through building movement and temperature swings to reduce cracking and peeling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional coverage:\u003c\/strong\u003e Brush, roll or spray application provides clear coverage guidelines so installers can build a 30-80 mil membrane depending on surface and coats.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater-based advanced formula:\u003c\/strong\u003e Low-odor, no VOCs and safe for use near foam insulation and in confined spaces where solvent products are impractical.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngineered waterproofing system:\u003c\/strong\u003e Works with seam tape or geo-textile to bridge joints, vents and skylights for a comprehensive leak repair approach.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe product suits homeowners, property managers and contractors tackling roof leak fixes, basement and foundation waterproofing, or repairs around chimneys and RV roofs. Its water-based, low-odor formula makes it a good fit for projects where solvent fumes are a concern and for DIYers comfortable with multiple coats and surface preparation.\u003c\/p\u003e\u003cp\u003eThose who need a walkable surface, a decorative topcoat, or a ready-made patch for heavy foot traffic should look elsewhere, because this coating can remain tacky after curing and is not rated for reliable pedestrian wear like decks or patios.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCreates a durable, flexible rubberized membrane that adheres to metal, concrete and wood.\u003c\/li\u003e\n\u003cli\u003eWater-based, low-odor formula that cleans up with water and is safer around foam insulation.\u003c\/li\u003e\n\u003cli\u003eClear professional guidance for coverage per gallon and multiple application methods: brush, roll or spray.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCan remain tacky after curing and is not suitable for regular foot traffic surfaces.\u003c\/li\u003e\n\u003cli\u003eSome users report adhesion issues in a few cases, so proper surface prep and optional seam tape are important.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eWaterproof rubberized sealant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContainer size\u003c\/td\u003e\n\u003ctd\u003e5 gallon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoverage - flat\/standing water\u003c\/td\u003e\n\u003ctd\u003e1 gal covers ~15 sq ft (3-4 heavy coats for 60-80 mil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoverage - vertical surfaces\u003c\/td\u003e\n\u003ctd\u003e1 gal covers ~30 sq ft (2-3 heavy coats for ~30 mil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormula\u003c\/td\u003e\n\u003ctd\u003eWater-based bitumen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElongation\u003c\/td\u003e\n\u003ctd\u003eOver 950%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuitable substrates\u003c\/td\u003e\n\u003ctd\u003eMetal, concrete, wood, foundations, gutters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Liquid Rubber Waterproof Sealant is a solid value for projects that require a flexible, industrial-strength membrane without solvent fumes. Pros and DIYers who apply the recommended multiple heavy coats and use seam tape where needed will get long-lasting protection on low slope roofs, foundations and metal surfaces. Avoid for high-traffic surfaces, but for leak repair and preventative waterproofing it offers professional-grade performance at a practical price.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCan this be applied over existing roof tar?\u003c\/strong\u003e\u003cbr\u003eYes, it can be applied over many existing bitumen surfaces after cleaning and ensuring good adhesion, but test a small area first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it safe for foam insulation?\u003c\/strong\u003e\u003cbr\u003eYes, the water-based formula does not harm foam insulation and is suitable for confined spaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many coats are needed for a reliable membrane?\u003c\/strong\u003e\u003cbr\u003eFor flat roofs aim for 3-4 heavy coats to achieve a 60-80 mil membrane; vertical surfaces typically need 2-3 heavy coats for a 30 mil membrane.\u003c\/p\u003e","brand":"Liquid Rubber","offers":[{"title":"Default Title","offer_id":48197467472091,"sku":"B00YYKJDEQ","price":199.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61v0Gb8OTWL._AC_SL1500.jpg?v=1770294253","url":"https:\/\/gearmusthave.com\/products\/liquid-rubber-waterproof-sealant-for-flat-low-slope-roofs-5-gallon","provider":"GearMustHave","version":"1.0","type":"link"}