Triton TGS/HCM 1000

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

Uniclass 2015

Pr_25_57_65_60 Plastics sheetsPrimary


F30/360 Gas resistant damp proof courses/ cavity trays

F30/54 Gas resistant dpcs/ cavity trays

J40/120 Loose laid plastics or rubber sheet damp proofing

J40/130 Loose laid plastics or rubber sheet oversite damp proofing

J40/140 Loose laid plastics or rubber sheet gas retardant damp proofing

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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).

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