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Internet # 309642520

Model # LFSBLKR01-CS

Flex Seal Liquid Black 1 Gal. Liquid Rubber Sealant Coating (2-Pack)

Contains 2 gallons ($109.99 /gallon)
$219.98 /case
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  • Dries to a watertight, flexible rubberized coating
  • Non-hazardous, non-toxic, and nonflammable
  • Brush it, roll it, dip it or pour it for watertight flexible seal
  • View More Details
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Product Details

About This Product

Flex Seal Liquid is actually liquid rubberized coating in a can. Similar to our Flex Seal Spray, but now you can brush it, roll it, dip it or pour it anywhere you need a watertight, flexible coating or sealant. Our patent pending, proprietary formulation starts out as a thick liquid and dries to a super strong and flexible, watertight, rubberized coating that protects and helps stop leaks fast.

Highlights

  • Forms a durable, breathable, weatherproof, non-slip barrier
  • Resistant to rain, snow, sun, wind, hail, air, moisture, UV degradation, extreme temperatures and natural weathering
  • Seals out air, water, and moisture
  • Prevents rust and corrosion
  • Mildew and chemical resistant
  • Non-hazardous and non-flammable
  • Safe around plants and animals
  • Like a handyman, in a can! - Phil Swift
  • Also works on copper, tile, wires, aluminum, and foam
  • Safe on EIFS, TPO, PVC, EPDM, CSPE, Hypalon, polyurethanes
  • 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 # 309642520

Model # LFSBLKR01-CS

Specifications

Container Size: 1 Gallon

Dimensions

Container Size

1 Gallon

Details

Application

General Purpose

Application Method

Brush, Roller

Base Material

Rubber

Coating Product Category

Waterproofer/Sealer

Color Family

Black

Color Family

Black

Color/Finish

Black

Coverage Area (sq. ft)

150

Dry to Touch (min.)

30 min

Interior/Exterior

Exterior, Interior

Number per Package

2

Paint Key Features

Chemical Resistant, Fast Drying, High Foot Traffic, High Heat, Low Odor, Low Temperature, Mildew Resistant, Moisture Resistant, Rust Preventative, Sealer, Skid Resistant, Stain Blocking, Stain Resistant, UV/Fade Resistant, Washable, Waterproof

Paint Product Form

Liquid

Paint/Stain Clean Up

Mineral Spirits

Returnable

90-Day

Sheen

Satin

Surface Use

Asphalt, Brick, Ceramic, Composite, Composite/Vinyl, Concrete, Drywall, Fiberglass, Galvanized Metal, Glass, Laminate, Masonry, Metal, Plaster, Plastic, Rubber, Stone, Vinyl, Wood

Transparency

Solid

Questions & Answers

1009Questions
caret
Q:Does it match the color from the spray can?
by|May 15, 2024
1 Answer
Answer This Question

A:  Hey there, thanks for reaching out. Flex Seal Liquid comes in Black, White, Clear, and Gray.We always recommend testing the product in a small area before completing a project. For more information regarding the product and its intended uses, please visit this link: https://flexsealproducts.com/products/flex-seal If you have any other questions or need project-specific help, send us an email at humans@flexsealproducts.com or a DM on socials. We're here to help!

by|May 15, 2024
    caret
    Q:Can liquid be applied with a throw away paint brush
    by|May 13, 2024
    1 Answer
    Answer This Question

    A:  Hey there Mindy, thanks for reaching out. For roofing applications, we recommend using a 3/4 inch nap roller. When using a pour method we recommend you pour a layer no more than 1/4 inch at a time. Allowing each layer to cure before adding the next until the crack is filled. Product fully cures in 24 to 48 hours. Apply additional coats as needed. Always brush or roll over a larger area than just where the leak occurred. For more information about the proper application of Flex Seal Liquid please visit this link: https://flexsealproducts.com/blogs/how-to/how-to-use-flex-seal-liquid. If you have any other questions or need project-specific help, send us an email at humans@flexsealproducts.com or a DM on socials. We're here to help!

    by|May 13, 2024
      caret
      Q:Can you use in brick to keep water from going under house
      by|May 13, 2024
      1 Answer
      Answer This Question

      A:  Hey there Mindy, thanks for reaching out. Many people have had success using Flex Seal Liquid for these applications. It can be used on concrete, glass, brick, stucco, masonry, wood, copper, plastic, tile, fabrics, wires, vinyl, fiberglass, ceramic, porcelain, metal, aluminum, natural stones, foam, asphalt, EIFS, TPO, PVC, EPDM, CSPE, Hypalon polyurethanes and much more. Please test on a small area first and note that you will not be able to paint over Flex Seal Liquid once it is applied and cured. For additional information regarding the application of Flex Seal Liquid please visit this link: https://www.flexsealproducts.com/product/flex-seal-liquid-rubberized-coating. If you have any other questions or need project-specific help, send us an email at humans@flexsealproducts.com or a DM on socials. We're here to help!

      by|May 13, 2024
        caret
        Q:Can this be used to fix concrete koi ponds
        by|May 9, 2024
        1 Answer
        Answer This Question

        A:  Hey there! Although plenty of customers have seen success with pond repairs, there are several factors in consideration - like aquatic plants and fish. When you get a chance, send us an email at humans@flexsealproducts.com or a DM on socials, we're here for you!

        by|May 10, 2024
          Showing 1-4 of 1,009

          Customer Reviews

          4.3 out of 5

          • 4.3 out of 1,922 reviews
          • 88% recommend this product
          Filter by:
          Showing 1-10 of 1,922 reviews
          Do not buy
          I bought 4 cans of this expensive stuff and it didn’t work on my roof. It actually peeled right off after drying.
          by
          Response from Customer ServiceJan 2, 2024
          Hey there, thank you for the feedback. We're sorry to hear about your experience with Flex Seal Liquid. When you get a chance, send us an email to humans@flexsealproducts.com with more information. We're here for you! FlexSealProducts
            poor adhesive
            The product is a nice rubber and seem to spread nicely with a roller. I was not happy with how easy it came off just by hand. I applied it to a concrete wall inside i had roughed up then washed off with a wet reg.
            by
            Response from Customer ServiceSep 15, 2023
            Hey there, thank you for the feedback. We're sorry to hear about your experience with Flex Seal Liquid. When you get a chance, send us an email to humans@flexsealproducts.com with more information. We're here for you! FlexSealProducts
              No good
              Upon opening the container the contents was in a solid state … I tried using a stick to stir … no success … it flaked like ice … is a refund or replacement possible?
              by
              Response from Customer ServiceMay 30, 2023
              Hey there, thank you for the feedback. We're sorry to hear about your experience with Flex Seal Liquid. When you get a chance, send us an email to humans@flexsealproducts.com with more information. We're here for you! FlexSealProducts
                • Recommended
                Flex seal
                Haven't put it on but I did use spray stuff excellent
                by
                Response from Flex Seal Family of Products Customer CareMay 10, 2023
                Hi there, thank you so much for sharing your Flex Success with us! We're happy to hear the Flex Seal Family of Products 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!
                • Verified Purchase
                • Recommended
                Fixed my balcony leak for under $300 vs a repair of $30,000.
                I would have given this product a five rating, but I have not seen how long it lasts and it is a little harder to work with than applying paint or varnish. I used about three gallons to heavily seal a stone floor on a balcony that was not properly installed. The subcontractor did not put a moisture barrier beneath the stone and mortar. The result was water finding its way into the wall and staining the wall board in our entryway. I poured and brushed to achieve about an eight of an inch thickness. This completely solved the problem of the leaking. Before doing this I received a quote to fix the problem that was over $30,000, so this solution made much more sense to me.
                by
                Response from Customer ServiceMar 27, 2023
                Hey there! Thank you so much for the 4-star review. We're so glad to hear that Flex Seal Liquid worked great for your leak repair. Send us an email at Humans@FlexSealProducts.com if you would ever like some advice on a future project with one of our products. FLEXON! FlexSealProducts
                • Verified Purchase
                • Recommended
                4 found this review helpful
                Worked great on balcony tiles
                I made the mistake of installing Mexican pavers on my balcony which are very porous and absorb water. I tried different sealers but because water pooled up on the pavers it caused water to leak through the tiles and drip underneath the balcony. So I tried Flex Seal clear liquid and am quite impressed with the results. First the pavers have a nice new glossy look. Second, water can no longer penetrate them, it beads on the surface.
                by
                  1 found this review helpful
                  False Advertising; Does not work.
                  Absolutely does not work. As I write this my roof leaks Fifteen Gallons of water per room through the flex seal this rain storm alone based on Home Depot 5 gallon containers that I have through out my house. Water simply leaks through the Flex Seal as though it were not even their. Looks good; but it leaks terribly. Spent thousands of dollars. Needs a class action law suit. Be Warned!
                  by
                  Response from Customer ServiceMay 10, 2023
                  Hey there, thank you for the feedback. We're sorry to hear about your experience with Flex Seal Spray. When you get a chance, send us an email to humans@flexsealproducts.com with more information. We're here for you! FlexSealProducts
                    5 found this review helpful
                    Log house
                    Used the clear liquid glue to seal my log house inside & out. I best thing I could've done. Regular stain sealants weren't working & costing me thousands of dollars. This stuff has done the job.
                    by
                    Response from Flex Seal Family of Products Customer CareJun 6, 2023
                    Hi there, thank you so much for sharing your Flex Success with us! We're happy to hear the Flex Seal Family of Products 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!
                    • Verified Purchase
                    • Recommended
                    Over-Rated products
                    My grandparents bought over 30 gallons for their basement that continously floods. We applied the paint to both the walls and floors following every direction on the can. We spent 900+ dollars repairing every room in the basement. One year later all the repairs we made were damaged and the basement was flooded as if we hadn't just fixed the leaks in the foundation. I recommend you don't waste your money or time with this product.
                    by
                    Response from Customer ServiceOct 7, 2022
                    Hey there. Thank you for the feedback, we're so sorry to hear about what happened with our Flex Seal Liquid. 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
                      10 found this review helpful
                      Flex seal on the back of a rug?
                      I put it on the back of a rug that had lost its backing but I wanted to save it as I loved the rug it worked beautifully.
                      by
                      Response from Customer ServiceAug 26, 2022
                      Hey there! Thank you so much for the 5-star review. We're so glad to hear that our Flex Tape worked great for your rug repair. 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! FlexSealProducts
                      • Verified Purchase
                      • Recommended
                      3 found this review helpful
                      Showing 1-10 of 1,922 reviews

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