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14 oz. Aerosol Liquid Rubber Sealant Coating, Black

$14.98
  • Easy-to-use rubberized coating seeps into cracks and dries
  • Seals out water, air and moisture
  • Can be used on wet or dry surfaces to prevent rust and corrosion
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Product Details

Flex Seal is an easy to use rubberized coating that sprays out as a liquid, seeps into cracks and holes and dries to a watertight, flexible coating. Flex Seal seals out water, air and moisture and helps prevent rust and corrosion. Once dry, Flex Seal can be painted over. Stops leaks fast.
  • Easy to use, portable, aerosol spray
  • Seeps into cracks and holes
  • Dries to a watertight, flexible, rubberized coating
  • Use on wet or dry surfaces
  • Stays flexible and pliable, lasts for years
  • Will not sag or drip in summer heat
  • Will not crack or peel in winter cold
  • Stops vibrations and deadens noise
  • Protects surface from corrosion
  • Once completely dry, it can be painted any color
  • Like a handyman, in a can - Phil Swift
  • Use also on aluminum, porcelain, drywall, and cement



  • Return Policy
  • California residents
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Specifications

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Questions & Answers

372Questions
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Q:How long do you wait after spraying sink drain before you can use
by|Sep 25, 2022
2 Answers
Answer This Question

A:  I didn't use this product for a sink drain. I used it to seal a crack on a pipe and it didn't work.

by|Sep 26, 2022

    A:  Hi Timothy, great question! Please allow for 24-48 hours of cure time before using your sink. Let us know if you need any more help at humans@flexsealproducts.com.

    by|Sep 26, 2022
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      Q:What is the coverage area (sq. ft.) per canister?
      by|Sep 21, 2022
      1 Answer
      Answer This Question

      A:  Hey there, Georgia! A 14 oz can of Flex Seal Spray covers approximately 12 ft². Coverage varies depending on coat thickness. Send us an email to Humans@FlexSealProducts.com if you would ever like some advice on a future project with one of our products. FLEXON!

      by|Sep 21, 2022
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        Q:Can this sealer be used on a plastic cooler that is customized with acrylic paints? Or will it make them run or change colors?
        by|Sep 20, 2022
        0 Answer
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        Q:Can this be used to seal vinyl flooring in an interior hallway?
        by|Sep 14, 2022
        1 Answer
        Answer This Question

        A:  Hey there, Grammy! We do not recommend using the Flex Seal Family of Products for any underfoot applications, as they may become slippery in certain conditions. If you have a flooring repair that isn't underfoot, please send us an email to Humans@FlexSealProducts.com with more information. We'll do our very best to provide you with assistance.

        by|Sep 14, 2022
          Showing 1-4 of 372
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          Customer Reviews

          4 out of 5
          (3,454)
          • 4
            out of 3,454 reviews
          • 84%recommend this product
          Filter by:
          Showing 1-10 of 3,454 reviews
          I had some old corrugated metal off an old shed...
          I had some old corrugated metal off an old shed that I wanted to use for a patio cover. These panels were getting rusty and old looking. Instead of buying new I decided to modernize them with a coat of flex seal black. I clean and prepped the panels and coated them. I figured this will stick to galvanize and so far I’m correct. I am pleased by the looks and performance I got with the flex seal spray.
          by
          Response from Customer ServiceSep 6, 2022
          Hey Chris! Thank you so much for the 5-star review. We're so glad to hear that our Flex Seal Spray worked great for your shed repair. Send us an email to Humans@FlexSealProducts.com if you would like to share photos of your project, or would ever like some advice on a future project with one of our products. FLEXON! FlexSealProducts
          • Verified Purchase
          Hello readers of the Flex Seal survey. For me the...
          Hello readers of the Flex Seal survey. For me the product failed without question. I used it on my Patagonia backpack in hopes of being the backpack back to being waterproof again. It looked great on day 2, but on day 3 and me continuing to use the bag in my daily routine the Flex Seal starting peeling off the bag in large black piece. Not what I was hoping for in the end. I would like to try the product on another project. Giving it another chance, still wanting to see this waterproof rubber like substance do what the info commercial claim.
          by
          • Verified Purchase
          1 found this review helpful
          Sealed around chimney. No more leaks.
          Worked like a charm!
          by
          Response from Customer ServiceJan 7, 2022
          Hi there, thank you for sharing your Flex Success with us! We're happy to hear that you are loving the Flex Seal Spray as much as we do! Feel free to send photos to Humans@FlexSealProducts.com, we'd love to see the results. Take care and Flex On! FlexSealProducts
          • Verified Purchase
          Upset!
          I bought this to stop air from coming in from around the window and it did not work. I apply three applications but still didn't work. It might have worked if I applied it in the Fall or Summer but probably too late in the Winter.
          by
          Response from Customer ServiceDec 3, 2021
          Hi there, thank you for sharing your feedback with us. We're so sorry to hear the Flex Seal Spray did not work for your project. When you have a moment please email Humans@FlexSealProducts.com so we can make this right. We look forward to hearing from you, have a great day. FlexSealProducts
            Stopped basement wall leak
            I have a concrete basement wall with a crack that would leak every heavy rain. I applied 3 coats of this (2 days apart). A couple spots still leaked a bit so I applied 3 more coats. Few days later got 5 inches of rain and got zero leakage! Great stuff.
            by
            Response from Customer ServiceOct 26, 2021
            Hi Eddie, thank you so much for sharing your Flex Success with us! We're glad to hear the Flex Seal Spray worked perfectly for your basement wall repair. If you ever need help with a future repair, feel free to message us at Humans@FlexSealProducts.com. Take care and Flex On! FlexSealProducts
              • Recommended
              4 found this review helpful
              EZ to use and Handy
              Flex Seal is easy to use and comes in handy when needing quick repairs for a leak. Just open and spray. I was able to seal my roof shingles after a recent hurricane. It did the job until I can have repairs made.
              by
              Response from Customer ServiceOct 6, 2021
              Hi there, thank for sharing your recent experience with us. We’re so happy to hear the Flex Seal Spray worked perfectly for your roof! If you’d like to share some photos, feel free to send them to Humans@flexsealproducts.com, we’d love to see the results! Flex On! FlexSealProducts
              • Verified Purchase
              • Recommended
              2 found this review helpful
              Doesn’t adhere at all on vinyl
              I used this product to seal a few holes in my pool liner and it didn’t adhere at all, I wait 48 hours, I put water and immediately it began leaking so my wife got inside the pool and the product adhere all right, to her foot.
              by
              Response from Customer ServiceOct 1, 2021
              Hi Ramon, thank you for taking the time to share your review with us. We are so sorry to hear the Flex Seal Spray did not work for your pool liner repair. When you have a moment, please email us at Humans@FlexSealProducts.com so we can turn your experience around. Have a great day. FlexSealProducts
                4 found this review helpful
                Stained my Foundation
                Purchased to seal my foundation because we flood occasionally. It can best be compared to rubber glue in a can. It sprays everywhere. If you turn the can upside down to spray hard-to-reach areas, it stops spraying. I sprayed the foundation and siding, waited 1 week for it to dry. It gave my previously white foundation, a spotted wet look. Siding is also stained with this spray goo. I don't yet know if it worked.
                by
                Response from Customer ServiceOct 19, 2021
                Hi there, thanks for taking the time to share your experience with us. We are so sorry to hear the Flex Seal Spray stained your foundation. When you have a moment, please email us at Humans@FlexSealProducts.com so we can find a solution. We look forward to hearing from you. Until then, have a great day. FlexSealProducts
                  3 found this review helpful
                  Not Bad but Could be Better
                  I bought some Flex Seal as part of some random supplies to go on a boating trip because I'm the type of guy that overpacks tools and accessories hoping that I will never need them, but knows that it's possible that I might. Well I was out on the lake with my deck boat and ended up getting a bad small that seemed like it was coming from my outdrive. I unscrewed the dip stick to check the oil and realized that the dip stick threads were completely stripped (the top of the outdrive is above the water line when not in motion). There didn't turn out to be any issue with the oil, but now I was stuck with a dick stick that was no longer water-tight that has to be in the water. I wasn't in a place that had a good cell signal and had to get back to the marina, so I used some Flex Seal around the head and then used Flex Tape over the whole dip stick and port and ran my way back in. The Flex Seal did a decent job of covering the area around the dipstick to seal up any possible places where water could penetrate and get into my outdrive's oil. But it was the Flex Tape that really did all of the work. I did use some Flex Seal around the edges of the tape where the tape didn't lay perfectly flat, just to make sure it was completely sealed up. This product is very flexible and pretty easy to apply. The product kind of gets all over the place, and it is suggested that you apply several layers to get the best possible seal. The product doesn't work great under pressure, but if you're just sealing up a small gravity leak then you should be fine. If you need to seal something under pressure then you should really go with the Flex Tape. To get the product off of an accessible area, I used a drill with a drill eraser and it came right up. Flex Seal doesn't work well on areas where the the seal is over a broken area, the broken or cracked pieces are still able to flex under the pressure.
                  by
                  Response from Customer ServiceAug 2, 2021
                  Hi there, thank you so much for sharing your great experience with us! We're glad to hear the Flex Tape was the perfect solution for your deck boat repair! If you ever need help with a future project or have any questions, feel free to message us at Humans@FlexSealProducts.com. Have a Flextastic day! FlexSealProducts
                  • Recommended
                  1 found this review helpful
                  I had a leak in my 17 gallon galvanized tub...
                  I had a leak in my 17 gallon galvanized tub and I sealed it with Flex Seal and now I'm curretntly heating water up in the sealed tub.. O.thank you Home Depot for carrying it
                  by
                  Response from Customer ServiceMar 22, 2021
                  Hi there, thank you so much for the FLEXtastic review, wahooo! We are so happy to hear the Flex Seal Spray was the perfect solution for your leak. If you would like to share photos or need any help on a future project, please feel free to message us at Humans@FlexSealProducts.com. Take care and Flex On! FlexSealProducts
                  • Verified Purchase
                  3 found this review helpful
                  Showing 1-10 of 3,454 reviews

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                  Container Size14 Ounce14 Ounce14 Ounce14 Ounce
                  Paint Key FeaturesMoisture Resistant,SealerWaterproofDries Clear,Sealer,WaterproofSealer,Waterproof
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