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🖤 Seal the deal with Flex Seal — your liquid armor against leaks!
Flex Seal Liquid Rubber in a 1-gallon can delivers a versatile, flexible, and waterproof rubberized coating that adheres smoothly to multiple surfaces. Engineered to resist UV rays, mildew, rust, and extreme temperatures from -37°C to 40°C, it provides long-lasting protection ideal for outdoor repairs and maintenance. Easy to apply by brushing, rolling, dipping, or pouring, this black liquid rubber is a trusted solution for sealing gutters, skylights, and more.
| ASIN | B01GFYA482 |
| Best Sellers Rank | #145,167 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #720 in Hardware Sealers |
| Brand Name | Flex Seal Liquid |
| Color | Black |
| Compatible Material | Rubber |
| Customer Reviews | 4.4 4.4 out of 5 stars (665) |
| Global Trade Identification Number | 00853517006306 |
| Included Components | Gallon Flex Seal Liquid |
| Item Dimensions | 19.7 x 16.5 x 16.5 centimeters |
| Item Form | Liquid |
| Item Type Name | As Seen On TV, Gallon, Black, Flex Seal Liquid |
| Item Weight | 5.13 kg |
| Manufacturer | Swift Response, LLC |
| Material Type | Rubber |
| Model | LFSBLKR01 |
| Number of Items | 1 |
| Part Number | LFSBLKD01 |
| Style Name | Compact |
| Surface Recommendation | Gutter |
| UPC | 853517006306 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Waterproof |
W**M
The liquid in a can is great for waterproofing outdoors. I have used it on the skylight curbs and gutters on my sunroom. Has not shown any signs of wear or cracking during the past 3 years. Has withstood +40 celsius to minus 37 celsius. The liquid version of this product is better than the spray version.
T**E
Very good, clean/dry concrete surface, it adhered and dried very well.
A**A
LOVE THIS STUFF. WATERPROOFS MY FENCE POSTS TOPS.....PAINT WILL NOT STICK TO IT SO REMEMBER THAT WHEN USING
J**S
Having been familiar with Flexseal in a spray can, I needed a gallon to apply to the steel powdered finish on my gazebo that started to rust, applying with a roller and only having 12-15 hours of drying time before a day of 12 hours of rain ( directions call for 24 hours drying time) I watched the rain run off like it does on a highly waxed auto…it was all I expected ….temp was in mid 70’s and sunny …this is the only product I thought could handle the job..wear old clothing, rubber gloves and cover areas to be protected….worth the money it costs
P**R
I have a 15 year old, 16' cargo trailer we take to our job sites. I replaced the skylight and needed a way to seal it properly. Regular silicone didn't do the trick and I considered roofing tar. I found this product and was a bit familiar with it and it's claims to seal. Well I gave it a shot to seal the skylight and it worked great. I then decided to order more and coat the entire roof and patch over the original sealant used when the trailer was built. The roof is galvanized and had a little coating of rust. I lightly sanded the surface to rough it up and applied the Flex Seal. I'm very happy with the results. The original sealant had separated in a few spots around the perimeter and this easily sealed those areas. I used a full gallon plus 2 pints to complete the job. I was pretty liberal with the application. It's thick stuff so it's not like spreading paint. I used a 4" wide paint brush and a disposable 2" brush for the detail areas. WEAR CRAPPY CLOTHES when applying. It seems to get everywhere-and I'm very neat! Disposable rubber gloves are a plus.
Trustpilot
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