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Internet # 309428796

Model # 10005050

4.5 Gal. Black Liquid Rubber Waterproof Coating Waterproofing Sealant

$318.99
/gallon
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  • Durable, waterproof seal for home and industry.
  • Easy roll-on application, strong rubber protection.
  • Low VOC, high-performance liquid rubber coating.
  • View More Details

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Product Details

About This Product

Rubberseal Roll On Liquid Rubber delivers premium, durable waterproofing for both home and industrial needs. This water-based, low-VOC formula creates a seamless, cold-applied rubber membrane with exceptional chemical and puncture resistance. Its high elongation and strong bond ensure a reliable, long-lasting seal, even in challenging environments. Easy to apply and quick to cure, Rubberseal provides superior film strength for a wide range of waterproofing applications.

Highlights

  • Ideal for foundations, planters, roofs, and ponds. Use as flooring underlayment only.
  • Provides excellent protection for foundations, planters, roofs, and ponds. For flooring, use only as a moisture-resistant underlayment.
  • Rubberseal's unique self-healing properties enable it to automatically repair minor punctures and maintain its integrity even when the underlying surface shifts or moves.
  • Delivers exceptional elongation for flexibility, superior puncture resistance for durability, and an exceptionally strong bond for lasting adhesion.
  • Offers exceptional performance with 1500% elongation, and reliable resistance to aging and UV exposure.
  • Professional, commercial-grade waterproofing, available for both construction sites and residential projects.
  • Application rate: 60 sq. ft./gal. at 20 mils (imperial).
  • Online price includes PaintCare fee in the following states: CA, CO, CT, DC, ME, MN, OR, RI, VT, WA
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 309428796

Model # 10005050

Additional Resources

Shop All Rubberseal

Specifications

Container Size: 4.5 Gallon

Dimensions

Container Size

4.5 Gallon

Details

Application

Rubberized Coatings & Dips

Application Method

Brush, Roller

Base Material

Rubber

Coating Product Category

Waterproofer/Sealer

Color Family

Black

Color/Finish

Black

Coverage Area (sq. ft)

300

Dry to Touch (min.)

60 min

Interior/Exterior

Exterior, Interior

Number per Package

1

Paint Key Features

Chemical Resistant, Low Odor, Mildew Resistant, Paint & Primer in One, Rust Preventative, Sealer, UV/Fade Resistant, Waterproof

Paint Product Form

Liquid

Paint/Stain Clean Up

Mineral Spirits

Returnable

2-Day

Sheen

Semi-Gloss

Surface Use

All Surfaces

Transparency

Solid

Questions & Answers

Does this contain POV and if so is it a low amount? Looking for something for chicken coop flooring.
ByJan 14, 2026
1 Answer | 
Answer This Question

Yes very low VOC- has been used in fish ponds

By|Jan 14, 2026
    0/0


    How many sq do it cover
    ByJan 10, 2026
    1 Answer | 
    Answer This Question

    Depends on thickness you put on - minimum requirements for waterproofing is 40 mls=1.05 mm. 30 square feet per gallon

    By|Jan 11, 2026
      0/0


      Can I put this on osb and tile over it ?
      ByJan 10, 2026
      1 Answer | 
      Answer This Question

      Yes

      By|Jan 11, 2026
        0/0


        Can I use it on canvas awning
        ByJan 4, 2026
        1 Answer | 
        Answer This Question

        yes you can, make sure it is clean and dry

        By|Jan 5, 2026
          0/0


          Would this work for sealing deck floor joist before applying floor boards?
          ByDec 29, 2025
          1 Answer | 
          Answer This Question

          Yes surface must be clean and dry before applying

          By|Dec 31, 2025
            0/0


            can this product be used over a acrylic roof coating
            ByDec 21, 2025
            1 Answer | 
            Answer This Question

            Yes surface must be clean and dry before application

            By|Dec 24, 2025
              0/0


              Can I apply it to the concrete floor and after 24 hours place the tile on the thinnest
              ByNov 22, 2025
              1 Answer | 
              Answer This Question

              Yes you can 🙏

              By|Nov 24, 2025
                0/0


                Can this be used as an underlayment for a metal roof, providing leak-proof resistance and encapsulating screw penetrations?
                ByNov 17, 2025
                1 Answer | 
                Answer This Question

                Yes

                By|Nov 18, 2025
                  0/0


                  Viewing 1-8 of 226

                  Customer Reviews

                  4.4 out of 5

                  • 4.4 out of 80 reviews
                  • 81% recommend this product
                  Filter by:
                  Showing 1-10 of 80 reviews
                  Rubber coating works great.
                  by
                  • Verified Purchase
                  Easy to apply, seals flat roofs adequately and extends the...
                  Easy to apply, seals flat roofs adequately and extends the life of rolled roofing material.
                  by
                  • Verified Purchase
                  1 found this review helpful
                  Great on a camper roof
                  I used this on my camper roof. It is easy to apply. I cleaned the surface with dawn first. There was a slight leak around the bathroom vent after cleaning but no leak after application. I used foam brushes around the edges, vents, etc and and rolled the rest. 2 gallons was enough for 2 coats on a 29 foot camper.
                  by
                    • Recommended
                    3 found this review helpful
                    Josh was amazing
                    I purchased this item online and picked it up from the store located at 300 Thruway Plaza Dr, Cheektowaga, NY 14225 and the customer service representative Josh went above and beyond to help me. He was professional, caring, knowledgeable, friendly, and helped load the heavy items in my cart. I give Josh 5 stars
                    by
                      This customer chose to rate the product and not provide text.
                      by
                      • Verified Purchase
                      This customer chose to rate the product and not provide text.
                      by
                      It does not go on easily or flow very easily and one gallon isn’t enough for even a sheet of plywood. Dot expect your floor to look like the one in the picture
                      by
                      • Verified Purchase
                      This customer chose to rate the product and not provide text.
                      by
                      • Verified Purchase
                      works as it is advertised went on very easy . wear gloves it is a little difficult to was off
                      by
                      • Verified Purchase
                      This was easy to use. We used it on the roof. We will know next spring if it works.
                      by
                      • Verified Purchase
                      Showing 1-10 of 80 reviews