NBS Source
Stopgap F77


STOPGAP F77 is a solvent free two part epoxy resin system which cures to provide a waterproof surface membrane. STOPGAP F77 impedes the passage of residual construction moisture and rising damp from affecting subsequent floor covering installations, therefore allowing early installation of floorcoverings in fast track building programmes.

STOPGAP F77 is pigmented black to allow the user to visually control coverage uniformity. It can be used to isolate residual construction moisture where relative humidity values are up to 98%.

General information



Uniclass 2015

Pr_35_31_68_47 Liquid tanking resinsPrimary


M42/150 Composition block flooring

M42/20 Composition block flooring

M42/30 Concrete/ Screed substrates

M50/10 Resilient floor tiling

M50/110 Resilient floor tiling

M50/130 Carpet tiling

M50/15 Carpet tiling

M50/150 Sheeting

M50/155 PVC sheet flooring in special wet areas

M50/170 Carpeting

M50/20 Sheeting

M50/25 Carpeting

M51/110 Carpeting

Specification data - Liquid tanking resins

Product Reference

Stopgap F77

Product Options

Technical properties:

  • Colour: Black
  • Working time at 20°C: 30 minutes.
  • Cure time at 20°C: 3 hours.

Digital objects

Platform Compatible Version Certified to

Revit 2017




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