Liquid Rubber Foundation Sealant/Basement Coating

Due to Computer Monitors, Colours may not be exactly as shown.


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Liquid Rubber Foundation Sealant/Basement Coating

  • ENVIRONMENTALLY FRIENDLY - Liquid Rubber Foundation Sealant is water based, containing no Solvents or VOC's.  This means it's safe to use indoors and outdoors with no special breathing apparatus like solvenated products need.  You're safe, your children are safe and your pets are safe.  We believe you should have a choice in purchasing high quality products that are safe for you and the environment
  • USED FOR - Foundations, ICF's, Basements, Shower Liners, Deck and Fence Posts, Planter Boxes, Metal, Wood, Concrete and more....
  • EASY TO APPLY - Basically just like painting except you use heavy coats to build up your waterproof membrane.  Open the container and start using.  You can close the container and use later if you have left over material.  No pot life or working time like 2 component products.  Apply by Brush, Roller or High Quality Piston Paint Sprayer
  • HIGHLY FLEXIBLE - Final membrane has over 900% Elongation.
  • 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.
  • Not meant as constant walking surface due to tackiness



  • Flat/Ponding Surface

    Apply a minimum final thickness of 1 gallon per 15sq ft (1.4 sq/m). It should require around 4-5 heavy coats to achieve a 60-80 mil. (1.5-2mm) (DFT) membrane.

  • Vertical Surfaces

    Exterior Foundation Wall

    Apply a minimum final thickness of 1 gallon per 20 sq ft (1.9 sq/m). It should require around 3-4 heavy coats to achieve a 40-60 mil. (1-1.5mm) (DFT) membrane.

    Interior Foundation Wall

    Apply a minimum final thickness of 1 gallon per 50 sq ft (4.6 sq/m). It should require around 2-3 heavy coats to achieve a 20-30 mil. (0.5-0.76mm) (DFT) membrane.




  • Avoid hot, direct, intense sun when applying.  Mornings and Evenings are best if it's blistering hot
  • Product stays soft, flexible and may have some tackiness, not meant as a constant walking surface
  • Not meant for long term UV exposure
  • Apply next heavy coat when it's dry to touch (typically 12-24 hours), make sure there is no uncured material underneath.  Tacky is ok
  • Generally you can apply 1-2 heavy coats per day
  • Apply all material until you use up the required amount
  • Do not combine Black products with Coloured products, use one or the other
  • For larger areas, pour out and spread around with a broom, roller or squeegee
  • Apply above 5C/40F
  • Curing time depends on temperature, humidity and airflow
  • Apply next coat(s) as soon as possible not allowing extended time between if possible
  • Safe for Plants (not meant for Plants you'll be eating. ie. Fruits and Veggies)
  • Do not apply later in the day if Dew is forecast, or if rain is expected within 24 hours.




Customer Reviews

Based on 52 reviews
Alisha Daniel
Happy with product

Easy to apply, did the job I needed great product

Aaron Baker
Just as advertised

Seems to be great product. Just applied it on a new foundation. Application was easy with paint roller and Mason brush. Hopefully it performs as advertised as well...

Edward Robertson

Liquid Rubber Foundation Sealant/Basement Coating

James Summers
Easily applied and easily cleaned up

After applying the first coat to my exterior foundation walls, coatings two and three glided smoothly and heavier. I feel confident that the walls are sealed.
Applying the product - coloring is brown, that made it easier for me to see that all areas were covered doing the additional coatings.
I used a 4 inch paint brush. Easy to apply.

David H Smith
It worked for me. Good investment.

I have a house built in 1940 with a cinder block basement wall except for the lower 3 feet on the uphill side of my house which was concrete encapsulated clay (Clay is the predominant subsoil where I live). After a few years of dealing with minor flooding from water seeping thru and getting exorbitant bids from basement specialist I took things into my own hands in June 2020. I bought a 5-gal bucket and before applying it, I skim coated (also known as parging) the concrete capsule with mortar about 1/2" thick. Plenty of YouTube videos on this. I let it dry for a few weeks and placed 6 coats of Liquid Rubber on the concrete extending 6 inches out on the floor. Very easy to apply, does not drip, and no volatile fumes. Almost one year later...So far so good. Words of wisdom: This stuff remains quite tacky for months, DO NOT place anything against if or it will stick and rip off the rubber when you try to move whatever you leaned against it. One trick is to powder it with fine sand to reduce the tackiness.


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