Flex Paste, Super Thick Rubber Spreadable Paste, Black 3 lb Tub

Flex Paste, Super Thick Rubber Spreadable Paste, Black 3 lb Tub
2 photos
Model: US715BLK32
(613)
2 stores
1 Products

Product Details

Flex Paste is perfect for DIY, Handyman projects, arts & crafts, hobbies and so much more! Use it to repair your roof, winterize your home, plumbing repairs, to seal cracks, automotive or marine repairs, pool and spa repairs, and so much more. One pound of Flex Paste provides about 10 linear ft at 2 inches wide with a layer thickness of approx. 1/16th inch. Flex Paste can be used on windows, doors, vents, thresholds and so much more. It will create a watertight barrier that seals out air and moisture. Use Flex Paste to help prevent flood damage. It can even be used to fill large voids to help keep insects and rodents out of your home. Unlike spackle or joint compound, Flex Paste dries to a waterproof, flexible rubber. Therefore, sanding may not be the best option once Flex Paste has cured. Instead of sanding we recommend using a putty knife, trowel or similar tool to smooth over the surface of the Flex Paste to your desired finish. You can even add designs and patterns to Flex Paste to create your own unique artistic textures. Flex Paste can be applied on dry or wet surfaces and even underwater. It won’t dissolve or wash away and even dries underwater. For best results apply a generous amount to the surface using firm pressure. This will help push the water out and allow better contact to the surface during application. Etching the surface may help with adhesion on both wet and dry surfaces.

Flex Paste, Super Thick Rubber Spreadable Paste, Black 3 lb Tub Thick rubberized paste that you can spread, shape, form and seal virtually everything Dries into a strong, flexible rubber that expands and contracts with the surfaces Can be applied on dry or wet surfaces, even underwater Will not shrink, crack or peel and once cured, it can be painted any color Works on wood, glass, tile, concrete, metal, brick, and so much more

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Last Updated: 2025-09-27 16:37:36

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Product Specifications

Technical Details

Manufacturer -
Brand Flex Seal
Item model number US715BLK32
Color Black
Weight -
Height -
Depth -

Additional Product Information

Product Id 2701094
User Reviews and Ratings
4.3 (613 ratings)
4.3 out of 5 stars
UPC 850017897205

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Flex Paste, Super Thick Rubber Spreadable Paste, Black 3 lb Tub
Reviews: 613
app.ratings: (613)
Price:
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Top User Reviews and Ratings (10 total reviews)

(3)
Reviewed in the USA on Aug 09, 2023

This is a good product, however the containers which we were shipped were obviously old inventory. A large amount of the product was hardened to the point it was unusable, perhaps 25% of the container. Since it's an expensive product to purchase, this is a significant financial loss to the consumer. Once you open the container you must use all of its contents within a 48 hour period as it hardens relatively quickly when exposed to open air. Closing the container does not stop it from setting up and hardening once the inner seal is removed, it only slows the setup time.

Anonymous • Review provider: walmart.com
(3)
Reviewed in the USA on Dec 12, 2022

It's a great product, BUT, unless flexseal finds a better a better way to package their product expect to lose 1/3 . The top one third of every tub has already solidified when you open it. In essence you're paying for 2/3 of whatever is marked on the tub. I've got a bunch of solid donuts from each tub if anybody wants them. THAT ALUMINUM FOIL ON TOP IS NOT DOING THE JOB.

Anonymous • Review provider: walmart.com
(5)
Reviewed in the USA on Nov 15, 2022

We put it on top of our toy hauler which had leaked the previous year. It was a chore prepping it and our friend who lives in it did a fantastic job painting wherever there was a possibility of water seeping in. Two days after competition we had a big, long storm, and all is well! I was worried about my friend and my nice toy hauler, but all is well!

Anonymous • Review provider: walmart.com
(3)
Reviewed in the USA on Nov 02, 2022

Seal membrane inside bucket only contacted product on 2inches diameter out of 4 5/8” diameter bucket. Made about 10-20% of bucket unusable because it had hardened into an inch plus thick donut. Tried to patch a crack in wet tar on roof and paste wouldn't stick just rolled up onto other side of putty knife. Worked good on A/C hole in window.

Anonymous • Review provider: walmart.com
(3)
Reviewed in the USA on Oct 11, 2022

This is a great product..... however, only 3 Stars because I expect to get what I pay for! I purchased the 6 lb. tub, so I expected to get 6 lbs of usable product. But when I opened the container I found a dried ring approximately an inch and a half wide and deep around the top of the tub. I paid for 6 lbs but only received 5 lbs of usable product. This not the first time either. I have purchased a total of three of the 6 lb. tubs and three 1 lb. sizes over the last two years and ALL of them have the same issue. So, if you need the amount you paid for you will need to order and pay more or purchase another brand.

Anonymous • Review provider: walmart.com
Showing 1 to 5 of 10 reviews
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