Liquid Rubber Waterproof Sealant – DIY Leak Repair Coating for Flat, Metal & Low…

Price: $69.95
(as of Jun 17, 2026 08:12:16 UTC – Details)

From the brand

RV Roofs & Campers

Decks, Patios, & Balconies

Flat, Low Slope, & Metal Roofs

Exterior Foundations

INDUSTRIAL STRENGTH BITUMEN FORMULA – Create a seamless waterproof membrane on flat roofs, metal roofs, low slope roofs, foundations, gutters, concrete surfaces, planter boxes, and more. Our premium liquid rubber forms a durable barrier against water infiltration where other sealants fail. Superior alternative to traditional roof tar or patch products
SUPERIOR FLEXIBILITY & DURABILITY – With over 950% elongation, this waterproof sealant maintains adhesion even with building movement and temperature changes. Our sealant is designed to resist cracking, peeling, and UV damage. Creates a flexible rubberized coating that delivers long-lasting protection
PROFESSIONAL COVERAGE SPECIFICATIONS – Brush, roll or spray on – For flat/low slope roofs & standing water surfaces: 1 gallon covers 15 sq ft (3-4 heavy coats to achieve 60-80 mil membrane). For vertical surfaces like foundations: 1 gallon covers 30 sq ft (2-3 heavy coats for 30 mil membrane). Ideal for both roof repair and preventative maintenance applications
WATER-BASED ADVANCED FORMULA – Unlike harsh roof tar or solvent-based products, our water-based formula contains no VOCs or harmful odors, making it perfect for indoor and outdoor use. Doesn’t damage foam insulation or sensitive materials. Perfect for waterproofing projects in confined spaces
ENGINEERED WATERPROOFING SYSTEM – For maximum protection, use with Liquid Rubber Seam Tape or Geo-Textile to bridge joints, seams, vents, skylights, and protrusions where movement may occur. Creates a comprehensive waterproofing system for long-lasting leak repair and prevention on your roof, basement, or foundation
USED BY PROFESSIONALS & DIYers ALIKE – With millions of gallons sold, Liquid Rubber is the go-to choice for contractors, property managers, and homeowners tackling projects from roof leak fixes to basement waterproofing. Our high-performance formula delivers professional results whether you’re an experienced pro or a first-time DIYer
PREMIUM ADHESION TECHNOLOGY – Superior adhesion to most building materials including metal, concrete, wood, and more. This hardware sealer can remain tacky after curing – NOT suitable for walking surfaces such as walkways, patios or decks. Use for waterproofing applications where foot traffic where foot traffic is minimal or not needed

Product summary

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