Liquid Rubber Waterproof Sealant - Roof & Gutter Coating, Black, 1 Quart
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Availability:
In Stock.
Arrives
Monday, Oct 19
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Size: 1 Quart
Features
- 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
Material: Rubber
Brand: Liquid Rubber
Style: Protective
Item Weight: 2 pounds
Item dimensions L x W x H: 4.5 x 4.5 x 5.5 inches
Brand Name: Liquid Rubber
UPC: 628421826025
Number of Packs: 1
Unit Count: 32 Fluid Ounces
Number of Items: 1
Included Components: 1 Quart
Manufacturer: Liquid Rubber USA
Model: 86202
Part Number: 86202
Item Weight: 2 pounds
Item Dimensions: 4.5 x 4.5 x 5.5 inches
Water Resistance Level: Waterproof
Item Form: Liquid
Compatible Material: Concrete, Metal, Wood
Style Name: Protective
Color: Original 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:
Monday, Oct 19
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
Size: 1 Quart
I had a fountain that leaked through some cracks. I tried the brand or sealant advertised on TV, you know, the bias with sealed screen door in the bottom. Seven coats, it never really sealed and lasted about 6 months. 3 coats of this stuff and a year and a half later, it’s sealed up tight. I really like this stuff. I wonder how it works as underbody protection on a car…..
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Reviewed in the United States on July 21, 2026 by Garage man
Size: 1 Quart
One of the best waterproof gel which is best for sunroof
Reviewed in the United States on August 16, 2026 by Aminur Chowdhury
Size: 1 Quart
Worked great for a rainwater leak between the neghibors cement wall and the new aluminum flashing I installed over the new framing of our basement Bilco doors. Taking advantage of a recent heat wave, in addition to heating up the liquid rubber container in some warm water prior to pouring really helped get the product thin enough to run down into some very tight spots. Wife and I used a large plastic medical syringe along with some 5/16" OD polyurethane tube that screwed perfectly into the Luer-Lock end of the syringe to inject the rubber into the problem areas. It was well worth the price, for our application, IMO.
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Reviewed in the United States on July 11, 2026 by Park13
Size: 1 Quart
I never bought or used Liquid Rubber before. I bought a quart to make a Civil War era ground cloth. The can I got was more like tar or PlayDough than a liquid. I was able to work the tar-like rubber into the canvas. The picture shows what it looked like after being stirred. The blanket turned out will, even though it did take some effort to work the rubber in. It has dried and appears as though it will be water resistant and it is also flexible and not tacky.
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Reviewed in the United States on April 28, 2024 by D M Wolfe
Size: 1 Quart
I used a foam brush to apply this to a water fountain container. Applied a second coat the next day. It’s been on for a couple months now and shows no sign of releasing from its base. I also used it to coat an overflow drip pan on my central ac unit. Here too adhesion was great and now my galvanized drip pan is protected from corrosion. I was impressed with the coverage from the container. Still have about 1/3 container for my next waterproofing project.
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Reviewed in the United States on August 7, 2026 by Lrome12
Size: 1 Quart
A little nervous about this product I haven't got a heavy rain yet since I've used it but it doesn't seem to dry being sticky it's very stretchy which maybe that's a good thing I don't know 😕 I've put four coats of it down hope it works.. Also I've used Aims block and wall about 4 years ago and it when it dries it's pretty hard I did four coats of that and it's been holding the water back so I know that works. I got a picture of both on stir sticks in my review here..
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Reviewed in the United States on December 17, 2025 by james ed
Size: 1 Quart
Worked great to repair a rain barrel an put in gutter joints
Reviewed in the United States on August 2, 2026 by Rick A.
Size: 1 Quart
First heavy rain and the entire shed roof got puffy and started lifting in the substrate. Annoyed because it took 3+ days to dry enough to even handle. I’ll have to tear the entire roof off and try something else. Big waste of time and money
Reviewed in the United States on October 15, 2025 by Ryan L