Triton TM20 / Platon P20

TM 20 / P20 is a high capacity drainage membrane recommended for use on all floor applications below ground due to its ability to control free flowing water. The deep stud profile is designed to resist blockages caused by lime deposits.

Triton TM20 / Platon P20 is most often incorporated within the basement floor build-up and can be used above or below suitable closed cell insulation (contact the Technical Department for guidance), to accommodate the requirements for Aquachannel drainage. TM20 / P20 is used in conjunction with Triton Sealing Rope, Overtape and Cornerstrip.

Basement Waterproofing Experts

TM20 / P20 carries a BBA certificate which is required to satisfy the requirements of Third Party Building Warranty providers (NHBC, LABC etc), it can be used within a standalone waterproofing system or as part of a combined strategy with other forms of waterproofing, depending on site conditions, planned use of the basement or below ground area and risk assessment.

Technical Data:
Roll size: 2.0m x 20m x 20mm
Sheet thickness: nominal 1.00 mm
Stud height (net): approx. 20mm
Unit weight: 0.95 kg/m2
Max. compressive strength: 170 kN/m2
Softening temperature: +125ºC
Air gap volume: 14 litre/m2
Drainage capacity: max. 13 litre/m2
Life expectancy: at least 50 years
Colour: black



Cavity Drain Membrane for internal use

  • BBA approved
  • heavy duty, deep studded HDPE cavity drain membrane
  • principally used on floors
  • for areas subject to high volume water penetration
  • impermeable to water, gas and water vapour