Stopgap F77 High-Performance Accelerated Waterproof Surface Membrane One-Coat Application System
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 floorcovering 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%.

Features
• Impedes the passage of construction moisture and rising damp up to 98% RH with a single coat application

• Colour pigmented to aid coverage uniformity

• Can be applied direct over underfloor heating screeds using a coverage of 1.8m²/kg where readings are up to 90% RH

Specification
Working Time: 30 minutes at an ambient temperature of 20°C

Cure time: Approximately 3 hours at an ambient temperature of 20°C