Waterproof Sealant Black Waterproof Coating 35oz Leak Repair Coating for Flat, Metal, Roofs, Foundations, Gutters, Indoor & Outdoor Walls, Bathroom, Kitchen, Garden Leak Liquid Sealant
Condition: New
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Saturday, Aug 22
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Style: Black-35 Oz
Features
- SENVEN 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, SENVEN waterproof sealant maintains adhesion even with building movement and temperature changes. SENVEN 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, SENVEN 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
- USED BY PROFESSIONALS & DIYers ALIKE - SENVEN Waterproof Sealant 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.
- ENGINEERED WATERPROOFING SYSTEM - For maximum protection, use with SENVEN 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
Material: Rubber
Brand: SENVEN
Style: Black-35 Oz
Water Resistance Level: Waterproof
Item Form: Liquid
Brand Name: SENVEN
Unit Count: 64 Fluid Ounces
Number of Items: 1
Manufacturer: SENVEN
Part Number: WP-7
Water Resistance Level: Waterproof
Item Form: Liquid
Compatible Material: Metal, Wood
Style Name: Black-35 Oz
Color: Black
Surface Recommendation: Roof, Vent
Material Type: Rubber
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Aug 22
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
This waterproof product exceeded my expectations!!! Super easy to apply and has a good coverage, thick and without bad smell brings its own brush and a pair of gloves to use it excellent size for its price and very efficient
Reviewed in the United States on June 26, 2026 by Fanny
RV roof project update! šŖ Today I put on the first coat of Senven Roofing Waterproof Sealant. Before that I filled in all the seams, cracks, and deformities with Dunn Edwards Flexible Patch. Looking solid so far! After 24 hours when this cures, next steps: 1. Lay down the felt seam tape 2. Paint around the vents and A/C unit 3. Finish with the second coat One step at a time. That desert sun wonāt know what hit it. āļø I would recommend #RVLife #DIY #RoofRepair #DunnEdwards #RoofCoating #Senven
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Reviewed in the United States on May 8, 2026 by Timothy
This water leak sealant helped me with a leak that I had here inside the house and as it is with transparent coating it was perfect since it is not noticeable on the walls
Reviewed in the United States on June 8, 2026 by Wilneiris Elina
This is a complete waste of money. The lid will not open no matter what I try. I spent way too long trying to get into it, twisting, prying, tapping around the edges, and it still would not budge at all. It is basically a sealed brick, not a usable product. I bought black paint and cannot even access it. That is ridiculous. This should never have made it past quality control. I want a refund. Do not buy this unless you want to throw your money away.
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Reviewed in the United States on April 11, 2026 by Karan Khanna
Muy pequeƱo caro para su tamaƱo
Reviewed in the United States on April 20, 2026 by edwin
This product exceeded my expectations! The quality is excellent, and it works perfectly. I am very happy with my purchase and would definitely buy it again.
Reviewed in the United States on June 6, 2026 by Ismaray Gonzalez Curvelo
This liquid rubber sealant is transparent, practical, and easy to use; it helps seal leaks and damp surfaces. It retains its consistency after application, spreads easily, and forms a protective layer. It can be used on roofs, gutters, and surfaces where water seeps through. The container is practical and stores the product well.
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Reviewed in the United States on June 8, 2026 by Natalie PĆ©rez
I bought this to seal a small leak and it works well. It is easy to apply and the transparent finish helps it mix once it dries. I think it is better for small or temporary corrections not to seal very large things. It takes a while to dry completely, but once it dries it looks perfect.
Reviewed in the United States on March 30, 2026 by Maya