Liquid Rubber Black Foundation and Basement Sealant, Indoor & Outdoor, Waterproof, 1 Gallon
Liquid Rubber Black Foundation and Basement Sealant, Indoor & Outdoor, Waterproof, 1 Gallon
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Liquid Rubber Black Foundation and Basement Sealant, Indoor & Outdoor, Waterproof, 1 Gallon

4.9 stars out of 173 reviews
(4.9)|
173 ratings
Liquid Rubber Black Foundation and Basement Sealant, Indoor & Outdoor, Waterproof, 1 GallonLiquid Rubber Foundation and Basement Sealant Indoor Outdoor Use Easy to Apply waterproofing Coating Black 1 GallonLiquid Rubber Foundation and Basement Sealant Indoor Outdoor Use Easy to Apply waterproofing Coating Black 5 Gallon
Size:1 gal
selected, 1 gal, $59.95
5 gal, $159.95

Key item features

  • PROTECTIVE FINISH FOR - Foundations, ICF's, Basements, Shower Liners, Deck and Fence Posts, Planter Boxes, Metal, Wood, Concrete and more
  • HIGHLY FLEXIBLE - Sealant final membrane has over 900% elongation in the sealing material preventing adhesion failure causing cracks and tearing.
  • EASY TO APPLY - No mixing required! Apply by brush, roller or high quality piston paint sprayer. Container can be closed and left over material used later. No pot life or working time like 2 component products
  • ENVIRONMENTALLY FRIENDLY - Liquid Rubber Foundation Sealant is water based, containing no solvents, VOC's or harmful odors. Safe for humans and pets alike, can be used indoors and outdoors with no special breathing apparatus
  • FOR A BULLETPROOF SYSTEM - Bridge joints, seams, vents, gaps, protrusions…. With Liquid Rubber Seam Tape or Liquid Rubber Geo-Textile where possible movement may occur. Scroll down for full application steps
Current price is $59.95
Price when purchased online
  • Free shipping
  • Free 30-day returns

How do you want your item?

How do you want your item?
Columbus, 43215
Arrives between Feb 6 - Feb 9
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Sold and shipped by Liquid Rubber Coatings Inc.
4.604651162790698 stars out of 5, based on 43 seller reviews(4.6)
Report an issue with this seller
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Items may be delivered on different dates

Customer ratings & reviews

4.9 out of 5 stars
stars173 ratings108 reviews
How item rating is calculated
  1. 5 stars92% (160)
  2. 4 stars5% (8)
  3. 3 stars1% (2)
  4. 2 stars1% (1)
  5. 1 star1% (2)

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Showing 1-3 of 108 reviews

Aug 27, 2025
Bill
5 out of 5 stars review

Seller Verified Purchase

Highly Recommend the Foundation Sealer

This was the second purchase of this product. I went through the first 5 gallons quickly on various projects. The sealer has corrected several water intrusion issues that I have. I plan on having it available on site/home at all times. I fully recommend this product for any foundation sealing needs. You should never trust another. AAA+ Item and Service.

Review from LiquidRubber
Helpful?2K26IX4ZZCKS476026263
reply from Technical

Thanks for the great feedback!

Aug 7, 2025
Mama2
Item details
Size: 1 gal
Sold byLiquid Rubber Coatings Inc.Delivered byWalmart
5 out of 5 stars review

Verified Purchase

Worked Great on My Roof – Very Pleased!

My brother and grandson used this Liquid Rubber Black Foundation and Basement Sealant Indoor and Outdoor on the valley of my roof, and it worked really well! It went on smoothly and created a nice waterproof layer that sealed everything up just like we hoped. I was especially impressed with how thick and strong the coating was once it dried. It gave me peace of mind knowing it could handle both rain and heat. Great for indoor or outdoor use. I definitely recommend this product if you're looking for reliable protection and easy application.

Helpful?2K26IX4ZZCKS476026263
reply from Liquid Rubber

Thanks for the great review and for sharing your experience.Amazing customers like you are why we work so hard to provide some of the safest and most effective water-based waterproofing products available.And remember...We are here to support you before, during, and after your project!Have a great day!

Oct 27, 2025
Larry D.
5 out of 5 stars review

Seller Verified Purchase

Inside Basement Coating

Easy to apply , went on brownish and turned black as it dried , which helped you to tell where you did your first coat !! Applied a few coats to my basement walls from the inside

Review from LiquidRubber
Helpful?2K26IX4ZZCKS476026263
reply from Liquid Rubber Technical Support

Thanks for the great review! Awesome customers like you are why we work so hard to make the highest quality water-based waterproofing solutions available. Be sure to follow the guidelines to ensure a successful project. And remember we are here to support you before, during, and after your project. Have a great day!