Liquid Rubber Multi-Surface Waterproof Sealant, Black, Indoor & Outdoor, 5 Gallon
Liquid Rubber Multi-Surface Waterproof Sealant, Black, Indoor & Outdoor, 5 Gallon
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Liquid Rubber Multi-Surface Waterproof Sealant, Black, Indoor & Outdoor, 5 Gallon

4.7 stars out of 196 reviews
(4.7)|
196 ratings

Key item features

  • HIGHLY FLEXIBLE & DURABLE - Final membrane has over 1000% elongation preventing adhesion failure, and is UV Stable stopping the sun from degrading the product
  • ENVIRONMENTALLY FRIENDLY - Liquid Rubber Waterproof Sealant/Coating 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
  • Apply next coat when dry to touch and nothing is wet underneath, tacky is okay.
  • Generally, 12-24 hrs. between heavy coats. Amounts vary depending on surface roughness.
  • Use all material up to achieve a long-lasting membrane.
  • Avoid hot, direct, intense sunlight during application. Remove Painters Tape while still wet. Membrane will turn brown in ponding situations due to surfactants. Will dissipate over time as the water cycles and cleans.
  • Clean Up - Use soap and water or mineral to clean skin.
Current price is $199.95
Price when purchased online
  • Free shipping
  • Free 30-day returns

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Columbus, 43215
Arrives by Tue, Feb 24
|
Sold and shipped by Liquid Rubber Coatings Inc.
4.604651162790698 stars out of 5, based on 43 seller reviews(4.6)
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Customer ratings & reviews

4.7 out of 5 stars
stars196 ratings109 reviews
How item rating is calculated

Reviews summary

Pros
  • : Application is straightforward and smooth.
  • : Provides coverage with multiple coats.
  • : Used for repairing various curved surfaces.
  • : Provides effective leak protection and extends roof life.
Neutral
  • : Can be effective, but may not fully seal in all cases.
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Showing 1-3 of 109 reviews

Sep 6, 2025
Bob S.
5 out of 5 stars review

Seller Verified Purchase

A feeling of security at being leak proof.

Haven't had rain so cannot comment on the waterproof aspects of the product. However I can tell you that a physical inspection tells me there will be no issues. The sealant goes on like a thick tar. I kept feeling it as it remained somewhat sticky for a few days. Eventually it was not sticky and felt like a solid hard tar finish. I can tell this will do a fantastic job. I will be ordering more of this in the coming years should the new coating appear to be breaking down. Time will tell. Bob S.

Review from LiquidRubber
Helpful?3MUK2JG2X084146788338
reply from Technical

Thanks for the great feedback and be sure to let us know how it performs over the long term.

Sep 23, 2025
Wild Bill
5 out of 5 stars review

Seller Verified Purchase

Sealant

Goes on thin so use about 4 - 6 light coats. Flashes off within 15 min. in warm temps & is easy to use. Keep stirring can as it'll 'skin' over in warm sunlight. Will seal effectively after it's cured!

Review from LiquidRubber
Helpful?3MUK2JG2X084146788338
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!

Sep 12, 2025
atta
Top Reviewer
Item details
Size: 1 gal
Sold byLiquid Rubber Coatings Inc.Delivered byWalmart
5 out of 5 stars review

Verified Purchase

Very appropriated. The time to reach here was perfect and the item ordered meets my need

Helpful?3MUK2JG2X084146788338
reply from Liquid Rubber

Glad to hear you were happy with your purchase