Waterproof Sealant 5 Gallon, Black Rubber Coating for Repairing Roofs Leaks, Warehouses, Foundations, Basements, Liquid Water Proof Sealant Coating
Condition: New
Notify me when this product is back in stock
Buy Now, Pay Later
As low as
$28.00
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Unavailable
Recently Viewed
Style: 5 Gallon - Black
Features
- Waterproofing and Anti-Leakage: Tkaimy polyurethane waterproof coating sealant is a water-based coating, waterproof sealant cures to form a dense waterproof membrane that effectively insulates against air, water, and moisture, preventing leakage
- Multi-surface Sealing and Waterproofing: Polyurethane waterproof coating use on roofs, sheds, walls, gutters, chimneys, basements, foundations, skylights, metal, wood, concrete, gutters, skylights, RVs, and more
- Easy To Apply: Mix the black roof sealant well before use, can use brush, roll, dip or pour method to apply evenly, liquid waterproof sealant can smoothly cover and penetrate small gaps and cracks, and play a sealing role
- Repairing Leak Waterproof Adhensive: Our polyurethane waterproof coating sealant black each 1gal covers approximately 30 sq ft, can be applied 2-3 layers. Multiple overlapping coats form a permanent bond, repairing cracks and leaks with ease
- Tkaimy Waterproof Sealant Application Tip: Prolonged rainy and wet weather that fall temperatures can cause waterproof adhesive to take longer to cure. Waterproof agent glue use temperature: 10 C/50 F or higher (including overnight temperatures)
Material: acrylic_latex
Brand: Tkaimy
Style: 5 Gallon - Black
Item Weight: 640 Ounces
Item dimensions L x W x H: 11.8 x 10.3 x 12.9 inches
Material: acrylic_latex
Brand: Tkaimy
Style: 5 Gallon - Black
Item Weight: 640 Ounces
Item dimensions L x W x H: 11.8 x 10.3 x 12.9 inches
Water Resistance Level: Waterproof
Item Form: Liquid
UPC: 635405124787
Unit Count: 1.0 Fluid Ounces
Number of Items: 1
Color: Black
Surface Recommendation: Roofs, Gutters, Basements, Foundations
Product Dimensions: 11.8 x 10.3 x 12.9 inches
Item Weight: 40 pounds
Department: 1
Manufacturer: Tkaimy
Date First Available: October 23, 2024
Frequently asked questions
This product is currently out of stock. Please check back later for shipping info.
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.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Style: 32 OZ - Clear
This waterproof coating is actually really good. It works great for scrubbing the bathtub and feels solid in hand. Water doesn’t get trapped inside, and it’s easy to rinse clean after using. Simple, effective, and better than I expected. Definitely happy with this purchase.
Reviewed in the United States on February 4, 2026 by Alina Alina
Style: 32 OZ - Clear
Great product! The sealant is high quality, thick enough to cover cracks well, but easy to spread with the provided brushes. It dried much faster than I expected and is totally clear.I am extremely impressed with this Tkaimy Waterproof Sealant. I used it to fix a persistent leak, and it worked like a charm. It saved me a lot of money on professional repairs.
...
show more
Reviewed in the United States on February 3, 2026 by EEJA EEJA
Style: 175 OZ - Clear
We like everything you get with this item. It is packaged well, comes with stirring sticks, disposable gloves, and an application tool. We used it on a newly poured concrete patio (waited 8 weeks after poured). It repels water and shines after a rain. Our large rocks are a layered stone and without sealing the layers would peal off.
...
show more
Reviewed in the United States on January 8, 2026 by Ron
Style: 32 OZ - Clear
Used this waterproof sealant on bathroom walls and window edges. Goes on clear, dries fast, strong adhesion, no smell. So far zero leaks. Great value, easy application, would buy again, highly recommend product.
Reviewed in the United States on February 3, 2026 by Annie
Say it seal ponds and would not hurt aquatic plants or fish. We purchase it to do a tile pond to seal it and discovered.It was not effective for the use that we purchased it for although it stated it would do it
Reviewed in the United States on December 4, 2025 by Amazon Customer
Style: 32 OZ - Clear
Does not go very far
Reviewed in the United States on January 3, 2026 by Paul B.
Style: 175 OZ - Clear
This goes on thin and dries clear. I have a concrete waterfall fountain which has developed cracks. I sealed the cracks using silicone and once it cured, I applied this sealant over it. It goes on thin and dries clear. I went ahead and applied 4 coats over 2 days which did the trick. No more leaks! It was nice that the product comes in a plastic bag inside of the bucket. This allows for no drips or splatters on the outside of the bucket and a convenient way to seal up the leftovers. Once you're done with the product, the bucket is clean for other uses! They also include 2 brushes and a pair of nitrile gloves. It's not as thick as Flex Seal but applying 4 coats on concrete worked just as well. Way better value too.
...
show more
Reviewed in the United States on August 11, 2025 by Da Flash
Style: 32 OZ - Clear
This sealant is easy to apply. I put it on plywood under the sink, besides waterproofing it protects cleaning supplies etc. from staining the wood. Would buy again.
Reviewed in the United States on February 1, 2026 by S i mo n