Moisture Control
Stopgap F78
One Component, Rapid Drying Waterproof Surface Membrane
STOPGAP F78 is a solvent free, one component, ready to use system which dries rapidly to provide a waterproof surface membrane. STOPGAP F78 impedes the passage of residual construction moisture from affecting subsequent floorcovering installations, therefore allowing early installation of floorcoverings in fast track building programmes.
STOPGAP F78 must be applied in two coats and can be used to isolate residual construction moisture where relative humidity values are up to 95% (ASTM F2170). It is pigmented blue to allow the user to visually control coverage uniformity.
- Impedes the passage of construction moisture up to 95% RH with a two coat application
- Colour pigmented to aid coverage uniformity
- No priming is required with smoothing compounds
- No mixing required
- Can be resealed and stored for future use
STOPGAP F78 is a solvent free, one component, ready to use system which dries rapidly to provide a waterproof surface membrane. STOPGAP F78 impedes the passage of residual construction moisture from affecting subsequent floorcovering installations, therefore allowing early installation of floorcoverings in fast track building programmes.
STOPGAP F78 must be applied in two coats and can be used to isolate residual construction moisture where relative humidity values are up to 95% (ASTM F2170). It is pigmented blue to allow the user to visually control coverage uniformity.
- Impedes the passage of construction moisture up to 95% RH with a two coat application
- Colour pigmented to aid coverage uniformity
- No priming is required with smoothing compounds
- No mixing required
- Can be resealed and stored for future use
Stopgap F78 Overview Data sheets and Downloads
STOPGAP F78 BASE PREPARATION
It is essential that STOPGAP F78 is applied to a clean and absorbent substrate. Any surface contaminants such as surface hardeners, cement laitance etc., should be removed to produce a slightly textured surface. The surface strength of the substrate should be greater than 1.5 N/mm². Power floated concrete should be mechanically prepared. Bases must contain a structural damp proof membrane. Rough, uneven or damaged concrete must be smoothed/repaired with STOPGAP 1500 or STOPGAP 460 EXTERIOR REPAIR.
Care must be taken to minimise the occurrence of pinholes in the smoothing compound when pre-smoothing.
It is essential that moisture readings in accordance ASTM F2170 are taken and recorded prior to commencing the installation. For further guidance please refer to the F. Ball Subfloor Preparation Guide.
Videos
How to mix and apply Stopgap F78 - High Performance Waterproof Surface Membrane
STOPGAP F78 is a solvent free, one component, ready to use system which dries rapidly to provide a waterproof surface membrane. STOPGAP F78 impedes the passage of residual construction moisture from affecting subsequent floorcovering installations, therefore allowing early installation of floorcoverings in fast track building programmes.
STOPGAP F78 must be applied in two coats and can be used to isolate residual construction moisture where relative humidity values are up to 95% (ASTM F2170). It is pigmented blue to allow the user to visually control coverage uniformity.
High Performance Rapid Curing Waterproof Surface Membrane One-Coat Application System