Flooring Prep - Surface Prep
Grey Patch™ is a polymer-modified, calcium-aluminate, rapid- setting, interior patching compound used to fill voids and smooth the surfaces of open concrete and approved wood underlayments and may be used without a primer or additive. Common floor coverings such as VCT and carpet can be installed in as little as 1 hour.
- Accepts flooring in as little as one hour
- Requires no priming on concrete
- Economical 4500 psi skimcoat that withstands heavy loads