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30 oz. LeakSeal Black Flexible Rubber Coating (2-Pack)

$4452
/case
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  • Seals cracks and holes with a water tight, paintable finish
  • Rubber coating shields against moisture and rust on any surface
  • Easy to use, flexible formula covers up to 40 sq. ft. per can
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Product Details

Repair leaks and cracks with this Rust-Oleum 30 oz. LeakSeal Black Flexible Rubber Coating Sealer (Case of 2). The rubberized protective coating is easy to use and creates a watertight seal that prevents rust, corrosion and moisture penetration. Use it on roofs, gutters, concrete, ductwork, flashing, PVC, masonry and more.
  • High-build formula seals leaks and cracks instantly
  • Covers up to 40 sq. ft.
  • Black finish
  • Ideal for filling large problematic and hard-to-reach areas
  • Can be top-coated with latex or oil-based paints
  • Rust and moisture resistant for superior protection from leaks, cracks and water penetration
  • Dries to touch in 1 hour
  • Cleans up with mineral spirits
  • Online price includes paintcare fee in the following states: CA, CO, CT, ME, MN, OR, RI, VT
  • Online price includes PaintCare fee in the following states: CA, CO, CT, DC, ME, MN, OR, RI, VT, WA
  • Return Policy
  • California residents

Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

207Questions
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Q:When it dries will the odor go away and how can I get rid of the odor?
by|Nov 15, 2022
1 Answer
Answer This Question

A:  Happy to help, Anthony! Once Rust-Oleum Stops Rust LeakSeal Coating has fully cured, any solvent from the coating will have dissipated. Ensuring the space has good air flow and circulation will also help prevent lingering odors. It is also essential that this product is applied within the recommended temperatures. Once the coating has fully cured, it can be wiped down with a clean rag and some soap and water to help remove any lingering odors on the surface. - Rust-Oleum Product Support 3

by|Nov 15, 2022
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    Q:Will this work on a bathtub floor?
    by|Oct 3, 2022
    1 Answer
    Answer This Question

    A:  We appreciate your interest, Jenn. Due to the constant immersion in water, we do not recommend Rust-Oleum Stops Rust LeakSeal Flexible Rubber Coating for use inside a bathtub. - Rust-Oleum Product Support 3

    by|Oct 3, 2022
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      Q:Can I use this on a painted surface?
      by|Sep 9, 2022
      1 Answer
      Answer This Question

      A:  Great question, Frank! Yes, Rust-Oleum Stops Rust LeakSeal Flexible Rubber Coating can be used on previously painted surfaces. Make sure to remove any loose or peeling paint prior to application to ensure lasting results. - Rust-Oleum Product Support 3

      by|Sep 12, 2022
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        Q:Can the clear rust oleum LS be used to seal and protect a painted chloroplast signboard from the weather?
        by|Jul 24, 2022
        1 Answer
        Answer This Question

        A:  Thanks for reaching out, Carlos. Rust-Oleum LeakSeal Spray is a rubberized coating that seals cracks, fills small holes and provides firm-but-flexible protection against moisture and rust on surfaces that need it most. LeakSeal cannot be used to seal a signboard. - Rust-Oleum Product Support 6

        by|Jul 25, 2022
          Showing 1-4 of 207
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          Customer Reviews

          4.4 out of 5
          (86)
          • 4.4
            out of 86 reviews
          • 86%recommend this product
          Filter by:
          Showing 1-10 of 86 reviews
          Not for use on painted surfaces. It causes the paint...
          Not for use on painted surfaces. It causes the paint to bubble and crack and basically come off. But it does seem to seal well.
          by
          Response from Rust-OleumSupportJun 4, 2021
          Oh no, we can help. Rust-Oleum Stops Rust Leak Seal can adhere to painted surfaces. Keep in mind that this product must be applied over a dry surface and cannot be used over an active leak. - Rust-Oleum Product Support 5 Rustoleum
          • Verified Purchase
          Make sure your surface is totally moisture free before painting and cut tape out, don't pull. Tri...
          Make sure your surface is totally moisture free before painting and cut tape out, don't pull. Trial and error plus a total lack of patience led me to that discovery. You can walk on the surface. I used it for a half dry/half wet duck pond and it seems to be holding up well with my weight, my husband's weight and the duck's claws have not even affected it. I'll be using this for all his habitats.
          by
          • Verified Purchase
          • Recommended
          3 found this review helpful
          good stuff
          worked as expected, be sure to use in well ventilated space, strong fumes
          by
          • Verified Purchase
          • Recommended
          Leak Seal
          Used this stuff for water seepage on my basement walls. I was amazed how well it works. Previous owner paid thousands to a basement water seal company with poor results. This stuff did the trick. Yes, it’s a bit pricey, but, if applied in several light coats, this stuff really works! It’s worth the price. I’m gonna wait a month or two, then Sheetrock over that wall. What a great product.
          by
            • Recommended
            PART 2 bcuz of limited characters allowed
            ....So, after leaving all windows open, and a huge floor fan on, the fumes dissipated. Let cure for a week, then painted over with Zinsser water-tite paint. Now we have a mildew free basement. It's pricey, so took off 1 star.
            by
              • Recommended
              1 found this review helpful
              PART 1..bcuz of limited characters allowed..
              Omg, does this STINK. We had persistent trickle seepage in our basement when heavy rains. We identified the trouble spots and applied. It's thick, like melted caramel. We had to leave our home overnight bcuz of the fumes. Fumes migrated thru house.
              by
                • Recommended
                1 found this review helpful
                Rating provided by a verified purchaser...
                Rating provided by a verified purchaser
                by
                • Verified Purchase
                Spreads easily. covers well....
                Spreads easily. covers well.
                by
                • Verified Purchase
                Used this to seal a pool when it was dry. Didn't work. Would never buy again.
                Used this to seal a pool when it was dry. Didn't work. Would never buy again.
                by
                Response from Rust-OleumSupportAug 25, 2020
                Something is amiss here Reno! Rust-Oleum LeakSeal Flexible Rubber Coating is suitable for use on metal, aluminum, galvanized metal, PVC, concrete, masonry, asphalt, vinyl siding and fiberglass. Not
                intended for water immersion or use on pools.
                - Rust-Oleum Product Support 6 Rustoleum
                • Verified Purchase
                I used to seal automotive vinyl top. It worked...
                I used to seal automotive vinyl top. It worked for what purpose I intended it for. It is a good product. Happy with the results.
                by
                • Verified Purchase
                Showing 1-10 of 86 reviews

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                Ratings
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                (86)
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                Container Size32 Ounce30 Ounce30 Ounce15 Ounce
                Paint Key FeaturesWaterproofUV/Fade ResistantDries Clear,UV/Fade ResistantMoisture Resistant,Sealer,UV/Fade Resistant,Waterproof
                Paint Product FormLiquidLiquidLiquidAerosol Spray
                Surface Material UseAll SurfacesAsphalt,Concrete,Galvanized Metal,Masonry,Metal,PlasticComposite/Vinyl,Metal,PlasticAsphalt,Concrete,Galvanized Metal,Masonry,Plastic
                THD SO SKU 1000110129
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