Proofex WG


A free-flow epoxy resin grout for use in waterproofing pile-caps, which can also be used when buildings are being constructed on gas-contaminated land.

Proofex WG is a three-component system consisting of base resin, liquid hardener and specially graded inert fillers. It is suitable for thicknesses of 20–100 mm.


  • Non-shrink, ensuring complete surface contact and bond.
  • Fully waterproof and compatible with Proofex membranes.
  • High compressive, tensile and flexural strengths.
  • Fast, convenient installation with rapid strength gain.

General information

Uniclass 2015

Pr_20_31_53_27 Epoxy resin groutsPrimary


J30/10 Cold applied damp proofing

J30/130 Cold applied damp proofing . . . . . .

Specification data - Epoxy resin grouts

Product Reference

Proofex WG

Standard product features


2025 kg/m³.

Compressive strength (BS 6319-2:1983):

  • 6 hours: 36 N/mm².
  • 1 day: 89 N/mm².
  • 3 days: 93 N/mm².
  • 7 days: 100 N/mm².

Tensile strength (BS 6319-7:1985):

7 days: 14 N/mm².

Flexural strength (BS 6319-3:1990):

7 days: 32 N/mm².

Secant modulus (BS 6319-6:1984):

13 kN/mm².

Chemical resistance:

Resistant to oil, grease, fats, most chemicals, mild acids and alkalis, fresh and sea water. Consult Fosroc’s Customer Service Department when exposure to solvents or concentrated chemicals is anticipated.


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