Evo-Stik Technik Hi-White Wall Tile Grout can be easily applied across all types of ceramic tiled surfaces using a sponge or rubber squeegee and will dry to a hard, durable and water-resistant finish, suitable for internal and external locations. Evo-Stik Technik Hi-White Wall Tile Grout is a professional quality cementitious grout for walls, which is colourfast, mould resistant and suitable for all types of ceramic tiles as well as stone, porcelain, vitrified, slate, terracotta, etc