Liquid Rubber Waterproof Sealant/Coating

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


We believe everyone should have a choice to buy high quality, environmentally friendly products. We believe you should have a choice to do your own projects (most of the time you can do it better yourself than hiring someone) and save money. We believe in Free Shipping (over $75) and Free Returns. We believe in making your experience the best it can possibly be. Please, please reach out to us with any questions.  We want to make your project a success.



Flexible Heavy-Duty Coating

  • ENVIRONMENTALLY FRIENDLY - Liquid Rubber Waterproof 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: All Roofs, Gutters, Planter Boxes, Foundations, Basements, Ponds, Sheds, Mobile Homes, Metal, Wood, Concrete and more
  • See DIY APPLICATIONS for more specific info
  • 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 - UV Stable - Final membrane has over 1000% Elongation and the Sun will not degrade the product.
  • 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.




  • Flat/Ponding Surface

    Apply a minimum final thickness of 1 gallon per 15 sq ft (1.4 sq/m). It should require around 4-5 heavy coats to achieve a 60-80 mil  (1.5-2.0mm) (DFT) membrane.

  • Vertical Surfaces

    Apply a minimum final thickness of 1 gallon per 30 sq ft (2.8 sq/m). It should require around 3-4 heavy coats to achieve a 30 mil  (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
  • 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 Colored products, use one or the other
  • For larger areas, pour out and spread around with a broom, roller or squeegee
  • If corrosion/rust is present, use Liquid Rubber MetalSafe Sealant
  • Use EPDM Primer for EPDM substrates.  Use Multi-Purpose Primer for PVC and Concrete Surfaces
  • 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 Fish and Plants
  • Membrane will turn Brown in ponding situations due to surfactants.  Will dissipate over time as the water cycles
  • Do not apply later in the day if Dew is forecast


Customer Reviews

Based on 63 reviews
Gerry Langfitt
On time delivery and EASY application

We have had basement issues for years. Water seeping thru the block walls and always breaking out the wet vacs to get the water up. I could actually see the water seeping thru. Got so tired of this BS. Started researching products and reading reviews and came across this. I will review this as a big test is coming today with winter storm Izzy. I applied the first coat yesterday and found it had dried to the touch within 3 hours. I saw complaints that it never dried, I say to those folks, you put your first coat on too thick. My wife looked at the horribly crooked line and decided I needed to coat two more courses of the block but use tape this time to make the line straight. Wives seem to know better ways. So got up this morning and placed a second coat over my work from yesterday and painted the next two courses above that. And yes, I used tape. Even tho it bled a little under the tape it does look a lot better. As for the brown color, I am glad it goes on brown as it shows, very clearly, if you miss any spot on your recoat. Anyway, Storm is coming in a couple of hours and we will see if I have any leaks in the places I coated yesterday as these were the places I could see water coming in. OH... I did use a space heater in the room. This may have helped with the drying process.
The only con I have is that it does not clean off my hands very easily. Used warm water and soap and it will not come off.

Great Product!!!

The Product was easy to work with!!! Now let's see the durability!!!

Teresa Walsh
Made my pond brand new!

Our pond had sprung a slow leak, and rather than hire a pond guy to come out and try to find/fix the leak, we took it upon ourselves to DIY it. I'm so glad we did. We cleaned out all the muck that had accumulated over the last 20 + years, and saved our precious goldfish and some lilies ~ and our pond is now better-looking than it EVER has been. The Liquid Rubber sealed up whatever leak there was (we did 3 coats), and it just looks so GOOD now! So glad fwe heard about this product!

john taylor
Initial application

Yes! I applied the first coat to my 10X10 storage shed, and am now waiting for rain to determine if I need to apply another coat.i say this because before I bought your product I sprayed the roof with aerosol water proofing products and
Believe I got a lot of the leaks stopped, but not all’s my thoughts are taking me to the “possibility” I may need “just “ one coat of liquid rubber to finish the job.if not,then i have “half”a pail left to apply additional coats. Will comment when we get some serious rain….thanks!

John t.

Robert Harle
GOOD Product

With the liquid rubber and the seam tape Both
Work grate together
And clean up it easy warm soap and water


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