Evo-Stik Wall Tile Grout Mould Resistant is a fast setting cement-based grout, suitable for finishing joints of internal and external ceramic tile installations. When set, it is completely waterproof and will not wash out of joints, making it ideal for use in areas subject to frequent wetting and condensation such as power showers, kitchens and bathrooms. Grouts ceramic tiles on most interior and exterior surfaces provided they are rigid and clean. 1kg of powder, when mixed, will grout approximately 5m². Coverage is dependent on the nature of the substrate, the adhesive bed thickness and the type of tile.