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Fosroc Proofex Engage

Pre-applied waterproofing membrane that mechanically bonds to poured concrete, remaining in place if settlement of substrate occurs.

Proofex Engage is a unique patented waterproof membrane system comprising a cell mesh bonded to a blended polyethylene/polypropylene membrane which allows poured concrete to interlock, forming a tenacious mechanical bond. Proofex Engage provides water, water vapour and gas protection to water excluding structures and protects concrete from aggressive ground salts, chemicals and hydrocarbons. Proofex Engage is supplied with a self-adhesive selvedge along one side of the roll to provide sealed laps and a comprehensive range of auxiliary products to simplify the application process.


Waterproofing and gas proofing membrane for concrete basements, lift pits, carparks and other water excluding structures. Proofex Engage can be used to achieve waterproofing to grades 1, 2 and 3 as defined in BS 8102:2009.


  • Unique mesh system bonds permanently to concrete, remaining in place even if settlement takes place
  • Smart anti-tracking design prevents water tracking between membrane and concrete
  • Simple and quick to install – no protection film to remove
  • Basement waterproofing protection to grades 1, 2 and 3 as defined in BS 8102:2009
  • Methane and CO2 protection as defined in BRE Report 212
  • Radon protection as defined in BRE Report 211
  • BBA certification
  • Protects concrete from attack from chemicals, hydrocarbons and aggressive ground salts in contaminated sites
  • Simple application – requires no primer or protection, and blinding concrete may be eliminated
  • Inert product – no risk of a reaction with ponded water prior to concrete being poured
  • Membrane composition gives excellent flexibility for detailing, combined with high durability and toughness for site trafficking

Product specification sheet

product sheet pdfFosroc Proofex Engage 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