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Flex Paste 1 lb. White All Purpose Strong Flexible Watertight Multipurpose Sealant

$12.99
  • Thick rubberized paste that clings to virtually any surface
  • Instantly fills large gaps, cracks and holes
  • Flex paste is UV and mildew resistant, will even cure underwater
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Product Details

Flex paste is a super thick rubberized paste you can use to spread, shape, form and seal virtually everything. Flex paste starts out as a thick paste and dries to a strong, flexible, rubber coating. It can be applied to all types of surfaces to seal out air, water and moisture. It clings to the surface and instantly fills large gaps, cracks and holes. It won't shrink or wash away and can be painted any color. Flex paste can be applied on dry or wet surfaces, even underwater. Flex paste clings to a wide variety of surfaces and will work on wood, glass, tile, concrete, aluminum, metal, brick, stucco, masonry, copper, fabric, fiberglass, ceramic, porcelain, natural stones, roofing, PVC, EIFS, EPDM, CSPE, Hypalon polyurethanes and so much more.
  • Seals out air, water, and moisture
  • Shape to take any form so you can fill large gaps and holes
  • Apply on wet or dry surfaces
  • Clings to multiple surfaces and hard-to-reach areas
  • Flex paste is perfect for DIY, handyman projects, arts and crafts, hobbies, repairs and so much more
  • Once completely dry, flex paste can be painted any color
  • Non flammable and UV, chemical, and mildew resistant
  • You can use flex paste on a wide variety of surfaces such as wood, glass, tile, concrete, aluminum, metal, brick, stucco, masonry, copper, fabric, fiberglass, ceramic, porcelain, natural stones, roofing, PVC, EIFS, EPDM, CSPE, Hypalon polyurethanes and so much more
  • Depending on temperature, humidity or the thickness of the layer, flex paste can be tooled within 15-30 minutes of the initial application it will dry to the touch in approximately 2-hours and fully cure in 24 to 48-hours
  • Flex paste gets stronger over time
  • Flex paste can be applied in a wide range of temperatures from 0°F - 150°F once applied and fully cured it can withstand a wider range of temperatures from 40°F - 200°F
  • With proper application, care and maintenance, flex paste will last for years



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From the Manufacturer

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Specifications

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Questions & Answers

120Questions
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Q:Will it seal auto windshield leak
by|Jan 17, 2023
1 Answer
Answer This Question

A:  Hey there! We do not recommend using the Flex Seal Family of Products for any windshield repairs, as it poses a safety hazard. If you have any other questions, feel free to send us an email at humans@flexsealproducts.com.

by|Jan 19, 2023
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    Q:The Hot Shot tank under my kitchen sink is a leaking mess. Don?t know if inner tank is metal, but outside tank is a black rubber-like material. I keep the temp below the boiling point to avoid scalding myself. Can I use Flex Paste to stop the leak?
    by|Jan 5, 2023
    0 Answer
    Answer This Question
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    Q:Will this product work on galvanized pipe?
    by|Dec 26, 2022
    2 Answers
    Answer This Question

    A:  It will, however it is not a long term solution. It does break down and deteriorate after a year or so.

    by|Jan 2, 2023

      A:  Hey there! It'll adhere well to this surface, among many others. However, different projects require different levels of attention. When you get a chance, send us an email or DM on all socials. We're here to help.

      by|Jan 14, 2023
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        Q:can flex seal be used in a cracked toilet tank
        by|Dec 23, 2022
        2 Answers
        Answer This Question

        A:  It may work for a while. Short time solution. Remove water.  Apply inside and outside. 90% stop leak. Finally change tank

        by|Dec 26, 2022

          A:  Hey there! It saure can - plenty of customers have successfully repaired their toilets using our products. If you need advice or project-specific tips, send us an email at humans@flexsealproducts.com or a DM on all socials. We're here to help.

          by|Jan 2, 2023
            Showing 1-4 of 120
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            Customer Reviews

            3.9 out of 5
            (931)
            • 3.9
              out of 931 reviews
            • 85%recommend this product
            Filter by:
            Showing 1-10 of 931 reviews
            unable to use entire container
            opening this for the first time most of it was already hardened so I was unable to use the entire container. I wish I didn't use the product at all because it left a very unclean "finish" after completing application because of chunks of dried paste that I couldn't get rid of.
            by
            Response from Customer ServiceDec 30, 2022
            Hey there. Thank you for the feedback, we're so sorry to hear about what happened with our Flex Paste. Please send us an email to Humans@FlexSealProducts.com with more information, and we'll do our very best to provide you with assistance. FlexSealProducts
              Great Product If Used Correctly
              For outdoor repairs where sanding is not required this is a great product. Be sure to follow the directions. If you do not use the entire product in the container, be sure to 1) leave the remaining product flat so that 2) you can push down the foil onto ALL of the product and 3) make sure the foil is pressed into the sides. If you leave air gaps or foil not contacting all remaining product, the edge will begin to harden. Paint thinner works great for cleanup. Hopefully the pics help.
              by
                • Recommended
                found it dried up before I opening
                Bought 2 - 6lb containers, and it started to harden on top and along the sides of the container. removed the dried flex seal and used part that had not dried. hard to spread wanted to stick to my putty knife instead of where I wanted to put it. after working with it for a while I was able to apply it. although it had a rough finish, well, I hoped the second container was better but it too was dried and hard to work with after finishing up I had a little left over, I sealed the lid, and stored it well after about a week we had a hard rain, although it did slow down my leak it did not stop it so I went to open the flex seal paste I had left to put another coat over the area, it had dried out and I could not use it.
                by
                Response from Customer ServiceAug 8, 2022
                Hey there. Thank you for the feedback, and we're so sorry to hear about what happened with our Flex Paste. Please send us an email to Humans@FlexSealProducts.com with more information, and we'll do our very best to provide you with assistance. FlexSealProducts
                  2 found this review helpful
                  Goes on easy
                  [This review was collected as part of a promotion.] I used this flex paste to fill a hole in my driveway concrete. Once open the paste seems to get stiff. I was able to apply it to my hole in the concrete fairly easy. If you work fast at getting the paste on your project it would be ok. Not sure if I will be able to use the rest in the tube as it dried up fast. It was easy to apply to concrete and seems to be holding up so far.
                  by
                  Response from Flex Seal Family of Products Customer CareMar 23, 2022
                  Hi there, thank you so much for sharing your Flex Success with us! We're happy to hear the Flex Paste is working great for your projects and repairs. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at Humans@FlexSealProducts.com. Flex On!
                    • Recommended
                    Bathroom fix and st micheal figure.
                    Bought it for a simple fix and my got the best of it extremely easy and safe to use very pleased with the out come of the product.
                    by
                    Response from Customer ServiceMar 9, 2022
                    Hi Juan, thanks for leaving an awesome 5-stars! We're happy to hear that the Flex Paste worked great for your project and that you found it easy to use. If you ever need help on a future project or repair, feel free to message us at Humans@FlexSealProducts.com. Flex On! FlexSealProducts
                    • Verified Purchase
                    • Recommended
                    Seals perfectly
                    [This review was collected as part of a promotion.] I used this to patch a strainer into a spoon. I was not sure it would work but it did. I even let the water sit in it for 30 minutes and no leaks! I didn’t found a small area that needs to be patched in my roof and will be patching that now that I am sure it will plug the hole and be water proof! I am so impressed
                    by
                    Response from Flex Seal Family Of Products Customer CareMar 1, 2022
                    Hi there, thank you so much for sharing your Flex Success with us! We're happy to hear the Flex Paste is working great for your projects and repairs. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at Humans@FlexSealProducts.com. Flex On!
                      • Recommended
                      Amazing product
                      [This review was collected as part of a promotion.] Flex Paste is incredible! So far I have used Flex Paste to better seal my windows in the basement that let in so much cold in the winter and near my door to fill in a gap that was letting in air. Flex Paste actually looks pretty professional with my quick installation (installed by a someone with no experience) and has literally saved me a lot of money and time. I’ve recommended to several friends who are home owners!
                      by
                      Response from Flex Seal Family Of Products Customer CareFeb 17, 2022
                      Hi there, thank you so much for sharing your Flex Success with us! We're happy to hear the Flex Paste is working great for your projects and repairs. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at Humans@FlexSealProducts.com. Flex On!
                        • Recommended
                        Great for home repairs and crafts
                        [This review was collected as part of a promotion.] This paste is nice to have at home for home repair projects. I also use it for crafts. I decorated a bowling ball with glass beads. Flex Paste worked well provide adhesion with yet a little flexibility with the beads to the round surface of the bowling ball.
                        by
                        Response from Flex Seal Family Of Products Customer CareFeb 17, 2022
                        Hi there, thank you so much for sharing your Flex Success with us! We're happy to hear the Flex Paste is working great for your projects and repairs. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at Humans@FlexSealProducts.com. Flex On!
                          • Recommended
                          Worked Great on My Leaky Bucket!
                          [This review was collected as part of a promotion.] I have a plastic bucket that I use to water a part of my garden that cannot be reached with my hose. When my bucket recently cracked, I used Flex Paste to seal the 2 inch crack in the lower side of my bucket. I've been using my bucket to carry water in again for over 2 weeks now and it is still holding strong.
                          by
                          Response from Flex Seal Family Of Products Customer CareFeb 15, 2022
                          Hi there, thank you so much for sharing your Flex Success with us! We're happy to hear the Flex Paste is working great for your projects and repairs. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at Humans@FlexSealProducts.com. Flex On!
                            • Recommended
                            Works So Well
                            [This review was collected as part of a promotion.] The flex paste comes in handy for any who has many things that need to patched up or quickly fixes. This paste works wonders and it is really strong. I used it more than one thing in my house. I used it my bathroom mostly where we had little holes causing some mildew.
                            by
                            Response from Flex Seal Family Of Products Customer CareFeb 14, 2022
                            Hi there, thank you so much for sharing your Flex Success with us! We're happy to hear the Flex Paste is working great for your projects and repairs. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at Humans@FlexSealProducts.com. Flex On!
                              • Recommended
                              Showing 1-10 of 931 reviews

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