STOPGAP 500 is a rapid drying floor finishing compound providing a smooth surface to plywood, existing floor smoothing underlayments, sand / cement screeds and other rigid dry absorbent surfaces, prior to the installation of floorcoverings.
STOPGAP 500 is dimensionally stable and is supplied as a pre-blended dry powder, which is designed for Micro-Coat application to a feathered edge. It is protein-free which allows it to be used in biologically sensitive areas.