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Model #LFSBLKR32

Store SKU #1002508053

Flex Seal Liquid Black 32 Oz. Liquid Rubber Sealant Coating

  • 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
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Product Overview

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.
  • 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



  • California residents

Additional Resources

From the Manufacturer

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Flex Seal Liquid Black 32 Oz. Liquid Rubber Sealant Coating
Flex Seal Liquid White 32 Oz. Liquid Rubber Sealant Coating30 oz. LeakSeal Black Flexible Rubber Coating (2-Pack)
BrandGorillaFLEX SEAL FAMILY OF PRODUCTSFLEX SEAL FAMILY OF PRODUCTSRust-Oleum Stops Rust
Name32 oz. Waterproof Patch and Seal Liquid in BlackFlex Seal Liquid Black 32 Oz. Liquid Rubber Sealant CoatingFlex Seal Liquid White 32 Oz. Liquid Rubber Sealant Coating30 oz. LeakSeal Black Flexible Rubber Coating (2-Pack)
Price
$2997
$3499
$3499
$4452
/case
Ratings
(81)
(1322)
(1374)
(85)
Container Size32 Ounce32 Ounce32 Ounce30 Ounce
Paint Key FeaturesWaterproofChemical 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,WaterproofChemical 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,WaterproofUV/Fade Resistant
Paint Product FormLiquidLiquidLiquidLiquid
Surface Material UseAll SurfacesAsphalt,Brick,Ceramic,Composite,Composite/Vinyl,Concrete,Drywall,Fiberglass,Galvanized Metal,Glass,Laminate,Masonry,Metal,Plaster,Plastic,Rubber,Stone,Vinyl,WoodAsphalt,Brick,Ceramic,Composite,Composite/Vinyl,Concrete,Drywall,Fiberglass,Galvanized Metal,Glass,Laminate,Masonry,Metal,Plaster,Plastic,Rubber,Stone,Vinyl,WoodAsphalt,Concrete,Galvanized Metal,Masonry,Metal,Plastic
TransparencySolidSolidSolidSolid
Base MaterialRubberRubberRubberRubber
SheenFlat/MatteSatinSatinFlat/Matte
Dry to touch (min.)8030 min30 min60 min
View ProductView ProductView ProductView Product

Specifications

Dimensions

Container Size32 Ounce

Details

Application MethodBrush,RollerBase MaterialRubber
Coating Product CategoryWaterproofer/SealerColor FamilyBlack
Color FamilyBlackColor/FinishBlack
Coverage Area (sq. ft)37.5Dry to touch (min.)30 min
Interior/ExteriorExterior,InteriorNumber per Package1
Paint Key FeaturesChemical 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,WaterproofPaint Product FormLiquid
Paint/Stain Clean UpMineral SpiritsPaint/Stain/Waterproofer Product TypeGeneral Purpose
Returnable90-DaySheenSatin
Surface Material UseAsphalt,Brick,Ceramic,Composite,Composite/Vinyl,Concrete,Drywall,Fiberglass,Galvanized Metal,Glass,Laminate,Masonry,Metal,Plaster,Plastic,Rubber,Stone,Vinyl,WoodTransparencySolid

Questions & Answers

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Customer Reviews

  • 4.4
    out of 1,322 reviews
  • 87%recommend this product
Filter by:
Showing 1-10 of 1,322 reviews
Best waterproof product period.
Absolutely the best product to keep water out of your house or anything else that you don't want damaged by water I love the brush on used three light coats to waterproof around my French doors that go out to my deck.
by
Response from Customer ServiceMay 20, 2022
Hi there, thank you so much for sharing your Flex Success with us! We're happy to hear that the Flex Seal Liquid got the job done for your roof repair. If you'd like some helpful tips and tricks for future DIYs, feel free to message us at Humans@FlexSealProducts.com. Flex On! FlexSealProducts
  • Verified Purchase
Flex seal on Rv roof
Went on great on top of my camper we will see how it holds up
by
Response from Customer ServiceMay 2, 2022
Hi Raymond, thank you so much for sharing your 5 stars 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 DIYs, feel free to message us at Humans@FlexSealProducts.com. Flex On! FlexSealProducts
  • Verified Purchase
I'm FLEXing on Top
This stuff is the best. Easy to put on.
by
Response from Customer ServiceNov 23, 2021
Hi there Kathy, thanks for sharing your positive feedback with us! We're so glad to hear you're loving the Flex Seal Liquid as much as we do! Feel free to send pictures of your Flex Success to Humans@FlexSealProducts.com. We'd love to see the results, Flex On! FlexSealProducts
  • Verified Purchase
  • Recommended
1 found this review helpful
Airblown Inflatable fixer
I use this product to help fix older inflatable decorations with porus fabric. It works like a charm! I use a old paintbrush and evenly distribute the paste all over the fabric. The liquid is very thick so you need to be patient but at the end of the day it is totally worth it. Using this product saved three old christmas inflatables of mine. It is overall an awesome product that I highly recomend using.
by
Response from Customer ServiceFeb 17, 2021
Hi there, thank you so much for sharing such a FLEXtastic review! We're happy to hear the Flex Seal Liquid helped save your inflatable decorations - that was a close one! If you ever need anything for future DIY projects/repairs, we're here for you at Humans@FlexSealProducts.com. Take care and Flex On! FlexSealProducts
    • Recommended
    1 found this review helpful
    I returned this product for the paste based on the recommendation of a carpenter. I used the Flex...
    I returned this product for the paste based on the recommendation of a carpenter. I used the FlexSeal Paste to seal around a window air conditioner. It did okay. Can any product advertised so heavily really meet or exceed expectations?
    by
    Response from Customer ServiceSep 14, 2020
    Hi CW! We love exceeding expectations! Send some pics of your project to humans@flexsealproducts.com and we'll be happy to offer our advice on how to optimize your success. Looking forward to hearing from you. Have a Great Day! FlexSealProducts
    • DIY
    • Verified Purchase
    • Recommended
    4 found this review helpful
    Nice
    [This review was collected as part of a promotion.] I received this can of flex seal in white, been waiting to try it on my gutters cause I have a couple leaks. As soon as I get my gutters clean I will give the flex seal a shot. All the reviews I have read have been pretty good. Thanks flex seal for the opportunity to try out your product.
    by
      • Recommended
      Great Sealant
      [This review was collected as part of a promotion.] I received the Flex Seal Liquid- White and in my opinion this stuff is awesome! We had a small hole on the outside of our concrete foundation and ants were steadily climbing into it. First I sprayed to get rid of the ants then I applied a generous coat of Flex Seal Liquid let that dry, applied a second thin coat to make sure the hole was sealed up and it worked perfectly.
      by
        • Recommended
        Great all weather protection
        [This review was collected as part of a promotion.] This Flex Seal Liquid is thick and provides great all weather protection. It is a little hard to apply and uses some elbow grease to spread it out. It fills small cracks and crevices helping to keep moisture out. Make sure to use this outside or in a well ventilated area because the smell is very strong. I couldn't recommend this product more.
        by
          • Recommended
          Works great!
          [This review was collected as part of a promotion.] My latest product to review is the FLEX SEAL LIQUID. I received a large 16 ounce container in white. I used this sealant to repair a small hole in the floor of the garage. A heavy object had fallen on the cement floor and cracked the floor and created the small hole. I cleaned and vacuumed any loose particles of dirt and cement from the hole before I poured Flex Seal in. I applied just one coat to repair the crack and hole in the floor and waited two days to allow enough time for it to dry. I think the repair job looks great and seems to be holding up quite well. This flex seal is a liquid rubber sealant that can be used on so many things. It starts as a liquid that can be easily poured from the can and dries to a watertight, rubberized coating. It truly is liquid rubber in a can!
          by
            • Recommended
            Great
            [This review was collected as part of a promotion.] This is a great product . i had a few leaks in my house,and this stopped it. I will buy this when i run out. Its real handy and easy to use. I love it . i do recommend it. Especially if you have small leaks..
            by
            Response from Flex Seal Family of Products Customer CareFeb 12, 2021
            Just like magic, it makes all those leaks disappear! Thank you so much for getting back to us with that awesome 5-star rating. Message us through Humans@flexsealproducts.com if there is anything we can do for you.
              • Recommended
              Showing 1-10 of 1,322 reviews