With Mould Shield(r) one of the worlds leading anti-bacterial solutions integrated into the manufacturing process, Forever White Powder Wall Tile Grout is guaranteed to stop mould, mildew and bacterial growth. Mould Shield(r) actively prevents the growth of bacteria, mildew and black mould that are commonly found in areas of high humidity. Forever White Powder Wall Tile Grout is independently tested and certified by a NAMMAS accredited microbiological laboratory to show no mould growth after more than 10 Years simulated ageing. Forever White Powder Wall Tile Grout dries to an extra brilliant white finish and is a cement based powdered grouting compound with added PVA to promote adhesion and water repellents to shed water. Simply mix with water to give a pure white paste. -Excelle.