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EcoProof 20 Liquid Rubber Waterproof Membrane - 5ltrs (Black)

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£80.96 Incl. VAT
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EcoProof 20 Liquid Rubber Waterproof Liquid Membrane is a highly advanced system that provides a fully bonded, elastomeric membrane with a completely waterproof seamless finish and a 20 Year Guarantee.

Not requiring any flames or primers as well as being a water based system and not containing any VOCs or solvents means EcoProof 20 Liquid Rubber is an extremely eco-friendly and easy system to apply over many existing surfaces with the simple use of a brush and roller.

Coverage: 2 coat application at a rate of 1ltr per sq/m per coat. Colour: Black.

System Features:

  • Fully Bonded
  • Seamless
  • Liquid Applied
  • No VOCs
  • No Solvents
  • High Performance
  • No Flames
  • Cost Effective
  • Fully Waterproof
  • UV Resistant

Suitable For:

  • Flat Roofs
  • Pitch Roofs
  • Domestic
  • Industrial/Commercial
  • Structural Waterproofing
  • Gutters


Elongation: >1000%
Recovery ASTM D 412: >95%
Surface Temperature Range (Application): +50°C to +500°C
Membrane Thickness: 2mm Typical Application
Tensile Strength ASTM D 412, MPa (psi): >830 (>120)
Accelerated Weathering: No Deterioration of the FilmASTM G 155, 250 hrs: >90% Retention of Original Tensile Strength
Puncture Resistance CGSB 37-GP-56: Passed (No Punctures)
Fire Ratings: AB


  • CE Certified
  • European BDA
  • German DIN
  • NHBC Accepted

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Questions & Answers


What are the best tools to apply this product?


A roller or brush is fine for applying this, or for larger areas you can use a sprayer.


I have a concrete flat roof, approx 6m2 covered in old bitumen felt. Would it be better to clear off the old felt and apply direct to the concrete roof?


If the felt is in ok condition and you can clean it off first you could apply direct on top. 

But you may need to use the flood coat first to ease adhesion (linked below).



What is the coverage per litre? How much do I need to buy to cover a 17sqm new build roof?


Coverage: 2 coat application at a rate of 1ltr per sq/m per coat. 

To be able to apply two coats you would need 40ltrs of this material.



Can this be used over an existing flat felt roof?


Yes, you can install this over a flat felt roof. The roof must be clean and clear from debris and also fully dry before applying.


Can you paint this over a failed fibre glass roof??


It would not be suitable really to bond to GRP I am afraid, it normally would need to go onto a surface it can get a bit more grip onto.


Fire rating of the rubber floor tanking


Fire Ratings: AB

Have a question about this product?


5 / 5 3 reviews
Richard Palmer
25th January 2021
absolutely the worst product I have ever encountered. Forget it. Zero, and I mean zero adhesion, seriously a post it note has more grip. Leaked on first rainfall. Applied in the summer with an extremely dry and well prepared surface. Pathetic. Pictures from video of removing the unstuck layer. It took about a day to remove and clean ready for applying something that is fit for purpose.
Paul Thomas
24th July 2020
Container very easy to open - The Waterproof membrane very easy to apply straight from the container with a Large Paint brush. Very Good coverage, applied 2 coats easily although would wait at least 24 hours before adding the 2nd Coat
4th July 2020
Excellent prouduct!
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