

💪 Seal the deal with SENVEN — where leaks meet their match!
SENVEN Waterproof Sealant is a premium 35oz black liquid rubber coating engineered for superior waterproofing on flat and metal roofs, foundations, gutters, and indoor/outdoor walls. Featuring 950% elongation, professional coverage specs, and a water-based, VOC-free formula, it delivers durable, flexible protection against water infiltration. Trusted by professionals and DIYers, it bonds to multiple surfaces and resists cracking, peeling, and UV damage for long-lasting leak repair and prevention.





| ASIN | B0DCSXNQNF |
| Best Sellers Rank | #149,368 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #351 in Hardware Sealers |
| Brand | SENVEN |
| Brand Name | SENVEN |
| Color | Black |
| Compatible Material | Metal, Wood |
| Customer Reviews | 4.2 out of 5 stars 112 Reviews |
| Item Form | Liquid |
| Manufacturer | SENVEN |
| Material | Rubber |
| Material Type | Rubber |
| Style | Black-35 Oz |
| Style Name | Black-35 Oz |
| Surface Recommendation | Roof, Vent |
| Unit Count | 64.0 Fluid Ounces |
| Water Resistance Level | Waterproof |
E**S
Reliable Sealant That Stops Leaks Fast
This waterproof sealant works incredibly well and delivers fast, long-lasting results. The thick black coating spreads smoothly and creates a strong, flexible seal on roofs, gutters, walls, and even bathroom areas. It dries quickly and holds up perfectly against water and weather. A great all-purpose leak repair solution—highly effective and easy to use!
R**Z
Great value , work so good
I bought this black waterproof sealant to fix some leaks on my roof, and I’m very satisfied. It’s easy to apply, sticks well to different surfaces like metal, concrete, and walls, and really keeps water out. I also used it on gutters and around the bathroom, and so far there have been no leaks. It dries quickly, and the black finish looks very even. Highly recommended for home repairs.
P**S
Great find! Love small tub.
Grateful for small tub. I painted the inside of a wooden planter to make it waterproof. Worked great.
M**.
Don’t recommend for wood.
Not super impressed. Does repel water but also dries out wood. Fades quickly and has whitish finish. Also tends to remove any paint already applied. Won’t use again.
M**E
THIN Like Water, really. Not the product I bought last July 2025
Lid is unbelievably hard to open. Inside is a watery fluid. Expect to go everywhere. Well, rain still comes right through. Too thin. First batch I bought had mnuch more body. And it sealed out the water in that area.
J**H
Sticks and dries great
Great
T**E
So far so good
I used this to seal the edge of a truck storage box. It was easy to put on and the edge strips are a nice addition and help a lot. The included brush however is a piece of crap. Buy a better brush. If the product fails within a year I will update.
M**E
Thin mix but seals well
Seems to work well at sealing out moisture. Be aware this formulation is very thin/consistency of water.
Trustpilot
3 days ago
4 days ago