Liquid Rubber Waterproof Sealant – DIY Leak Repair Coating for Flat, Metal & Low Slope Roofs, Foundations, Gutters & More – Flexible Protective Membrane - Black - 1 Gallon
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This item is eligible for return within 30 days of receipt
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Availability:
In Stock.
Arrives
Monday, Jun 30
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Size: 1 Gallon
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: Polymer
Brand: Liquid Rubber
Style: Waterproof Sealant
Item Weight: 9 Pounds
Item dimensions L x W x H: 12 x 12 x 16 inches
Material: Polymer
Brand: Liquid Rubber
Style: Waterproof Sealant
Item Weight: 9 Pounds
Item dimensions L x W x H: 12 x 12 x 16 inches
Compatible Material: Multiple
Water Resistance Level: Waterproof
Item Form: Liquid
UPC: 628421126026
Unit Count: 128 Fluid Ounces
Global Trade Identification Number: 12
Number of Items: 1
Color: Original Black
Surface Recommendation: Roof, Vent
Manufacturer: Liquid Rubber USA
Part Number: 12602
Item Weight: 9 pounds
Product Dimensions: 12 x 12 x 16 inches
Country of Origin: Canada
Item model number: 12602
Is Discontinued By Manufacturer: No
Size: 1 Gallon
Horsepower: 1.00
Item Package Quantity: 1
Special Features: Waterproof
Usage: Commercial/Residential
Included Components: 1 Gallon
Batteries Included?: No
Batteries Required?: No
Date First Available: December 9, 2014
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Jun 30
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: 5 Gallon
Very thick sealant. Worked great on my roof. Went to buy another because the coverage wasn’t enough, this one is the best.
Reviewed in the United States on June 21, 2025 by zemer
Size: 1 Gallon
Love this stuff it’s great to waterproof the inside of my whiskey and wine barrels! Can back for another can amazing happy with this purchase!
Reviewed in the United States on June 4, 2025 by David Lek
Size: 5 Gallon
The best ever roof sealer. Our commercial roof has leaked for 18 years. We tried 1 can and were very impressed with the thickness and adhesion. We have now ordered many cans of this and have 85 % finished patching our roof. Even so, after 3-4" of rain in the last 3 days, we are 100% bone dry with zero leaks. This stuff really works.
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Reviewed in the United States on May 4, 2025 by jw hoyle
Size: 1 Gallon
Works well
Reviewed in the United States on May 20, 2025 by Lamont Chenault
Size: 1 Gallon
Had never used this type of product but have to say it worked wonders! Was used on a metal roof that had been battered by repeated recent storms and was the fastest way I could think of to stop the leaks without replacing the roof on the building. Only had about 36 hours between storms and it stopped all leaks. 5 Stars!!
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Reviewed in the United States on May 3, 2025 by wbcoc
Size: 1 Gallon
I used this product on some cement blocks. I wanted to prevent some soil from gaining some alkalinity from the cement. Out of the can it looks brown but dries black. I put on three coats and it indeed provided a nice rubbery barrier to water movement. It dries to a smooth pliable texture and feels slick. I also applied it to the inground section of some gardening sticks and this nicely extend the life of the sticks.
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Reviewed in the United States on April 7, 2025 by Rod Kirk
Size: 1 Gallon
Sealed up my cracks on my flat roof. No leaks sofar
Reviewed in the United States on May 10, 2025 by Edlar
Size: 5 Gallon
I wanted to start out by saying the company's customer service is amazing. There is a toll free number on the back of the bucket and someone answered my questions. We asked them about the dry time after 3 days of waiting for this stuff to get less sticky and they were very nice. We were painting this on a concrete/cement flooring. We live in FL and there is moisture in the soil. Our villa was built about 30 years ago and moisture was seeping up through the foundation. We had to rip out the flooring that was put down just 2 years ago (right before we moved in) because black mold was growing on the cork sub floor. (Not our choice to put down a cork sub floor on a foundation that had moisture but the previous owners clearly didn't know about the moisture issues). So, we starting rolling it in the main areas and painting it with a brush in the corners/sides. The stuff is very thick. However, a few days later it was still very tacky. Tacky to the point we couldn't walk on it. Every time we tried we would get stuck in place. It was pretty funny. We had tilers waiting for this stuff to "dry/cure" before the walked on it. I called the company on day 3 and they suggested to use talc powder or lay down plastic. Our tilers said plastic wasn't a good idea. On day 4 after we applied it they gave up trying to wait until it hardened and started laying tile. They said they ruined their knee pads and it was hard to walk on. We also noticed it was ripping. Wherever they would kneel, move tile, use their rolling cart, etc, it would leave holes. We had hundreds of holes throughout the waterproofing. I wanted to cry. It took us a while to apply and we lost time waiting for the stuff to dry (which it never did). We told them they would have to wait until we applied a second coat. We waited another 2 days and they came back. It did the same thing. Holes everywhere. We wasted about a week in time. Does it work? Maybe, but there is no way for us to tell since they laid thin set on top of it and it had so many holes. I cannot stress how shredded this sealant was. We wasted $150 and hours of time applying and waiting for it to dry. The tilers also were not thrilled with us at all. They told us to buy another product which the local Home Depot had. It is ever so slightly more but it was a dream to apply and, after days of tilers walking on it, hasn't made a single hole. I would not recommend this product to a single person. I wish we hadn't bought it. This would get negative stars if that was an option. I usually don't leave bad reviews but this was that horrible. Sorry Liquid Rubber.
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Reviewed in the United States on October 16, 2017 by MellissaRose