Highly concentrated formula, can be used diluted and undiluted. Diluted: cleans and degreases porcelain tile, ceramic tile, natural stone, terracotta and concrete. Undiluted: removes ground-in dirt from porcelain tile. Safe for deep cleaning unpolished, acid sensitive stone. Ideal for regularly cleaning of concrete. Stripper for water-based sealers and polishing waxes. Ideal For: All Unpolished Natural Stone, Terracotta, Quarry Tile, Concrete, Porcelain And Ceramic Tile. Advantages:3-in-1 Solution: Stain Remover, Cleaner And Stripper. Removes Stains From Porcelain Tile. Does Not Damage Delicate Surfaces. Easy And Safe To Use. Biodegradable.