Bartoline Waterproof Wall Tile Grout is a premium cement-based powdered compound ideal for grouting joints up to 3mm wide. Designed for use in wet areas such as kitchens, bathrooms, and showers, it offers a fully waterproof finish, making it an essential choice for both indoor and outdoor tile installations. The formula mixes easily to a smooth paste and dries bright white for a clean, polished look.
eBay