Fila W68 Stain Protection For Terracotta And Natural Stone 1LtrWHAT'S IT FOR Seals and protects porous materials such as untreated natural stone, terracotta and concrete from oily dirt. Stain proofing: it hampers the absorption of common watery and oily stains. Suitable for interior and exterior surfaces. For use on interior floors as a protective base coat before the application of wax. It provides an anti graffiti protection that prevents graffiti paint from bonding to surfaces. It speeds the cleaning process