Forever White Grout Reviver The easy way to restore discoloured and dirty grout to a bright white finish. Simply apply to grout lines using the easy to use applicator, allow to dry and remove any excess residue with a damp cloth. Features & Benefits: Excellent water resistance. Dries brilliant white. Contains Mould Shield – prevents mould growth. Ready mixed formula – no mixing, no mess. Apply straight from the tube. Areas For Use: Kitchen/Bathroom walls. Shower areas. Wet Rooms.