NBS Source
List your products

A specially engineered tri-polymer membrane providing a highly effective barrier against radon, methane, carbon dioxide and hydrocarbon gases. The membrane is produced from a uniquely formulated blend of polymers to produce outstanding chemical resistance, mechanical properties, dimensional stability and thermal aging characteristics. It is ideally suited for sites formerly used as coalfields, landfill sites or industrial sites that previously contained volatile liquids such as petrol stations.

Features and benefits:

  • Excellent resistance to chemical and hydrocarbon gases.
  • Suitable for hot welding.
  • Very high puncture and tear resistance.
  • Compatible with vented systems.
  • Full range of accessories available.

General information
Specification data - Plastics sheets
Product Reference

Triton TGS/HCM 1000



Triton HCM 1000 Double Sided Tape

For jointing membrane edges.

Triton HCM Joint Tape

For sealing overlapping membranes.

Standard product features


1000 microns.

Roll size (w x l):

1.3 x 20 m.



Technical properties:

  • Weight: 0.925 g/cm².
  • Tensile strength (to BS EN 12311-2): Longitudinal: >165 N/50mm; Transverse: >143 N/50mm.
  • Tear resistance (to BS EN 12310-1): Longitudinal: >700 N; Transverse: >750 N.
  • Impact resistance (to BS EN 12691): >660 mm.
  • Watertightness (to BS EN 1928): Pass (at 2 kPa).

Similar products from Triton Systems