Hyload Tanking Membrane Gastite SA


Cold-applied, self-adhesive membrane for protecting structures against the ingress of moisture and methane and radon gases, comprising a specially developed high strength composite film laminated to a self-adhesive polymer modified compound.

Features and benefits:

  • Laminated metal foil and modified bitumen compound provides dimensional stability, high tear strength, puncture and impact resistance.
  • One layer application.
  • Cold applied and does not use specialist tanking equipment, making it a cost effective, low labour application.
  • Can be used as a fully bonded damp proofing membrane.
  • CE marked.

General information


Thickness: 1 mm

Width: 1000 mm

Roll length: 20 m

Uniclass 2015

Pr_25_57_08_08 Bitumen sheetsPrimary


J40/180 Self-adhesive bitumen gas retardant damp proofing/ tanking

Specification data - Bitumen sheets

Product Reference

Hyload Tanking Membrane Gastite SA, 30820000


One coat IKOPro SA Bitumen Primer


Not required

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Standard product features


A combination of an aluminium/ polyethylene laminate coated on one surface with a layer of self-adhesive polymer modified bitumen.


White foil upper/ black.


  • Thickness: 1 mm.
  • Width: 1000 mm.
  • Roll length: 20 m.

Technical characteristics:

  • Strength (to ASTM D1000): 3.0 N/mm.
  • Elongation (to ASTM D1000): 40%.
  • Adhesion (to ASTM D1000): 2.0 N/mm.
  • Puncture resistance (to ASTM E154): 250 N.
  • Water vapour transmission (to ASTM E96): <0.1 g/m² per 24 hours.
  • Methane gas permeability: <0.03 ml/m² per 24 hours.
  • Radon diffusion: 5.0 x 10-14 m²/s.

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