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Fosroc Proofex 3100

High performance, bituminous self adhesive
waterproofing membrane

Proofex 3100 is a self-adhesive bituminous membrane incorporating a cross laminated HDPE film. The bitumen compounds used to manufacture the product are modified with SBS to promote maximum adhesion to the substrate.


Proofex 3100 is used to sub-structure, basements, retaining walls and tunnels.


  • Self adhesive – allows installation without the use of heating torches while providing a fully bonded membrane system
  • Uniform thickness – eliminates any likelihood of thin application commonly found with liquid applied membranes
  • Cross laminated High Density Polyethylene (HDPE) carrier film ensures dimensional stability whilst allowing adequate flexibility during installation and service
  • Selvedge strip provides bitumen to bitumen seal at longitudinal joins ensuring watertight seal

Product specification sheet

product sheet pdfFosroc Proofex 3100 product specification sheet opens in a new window


Parchem Construction Supplies

Parchem Construction Supplies logo
Parchem Construction Supplies Pty Ltd is part of the Alesco Group and operates within the ‘Construction and Mining Division’. Alesco is a publicly listed industrial brands company who supply a diverse range of specialist industrial products in Australia and New
  • Australasian Corrosion Association
  • Association for Materials Protection and Performance
  • Illawarra Innovative Industry Network
  • NACE International
  • The Society of Protective Coatings