Product Description Miracle Sealants Porcelain and Ceramic Tile Cleaner is a unique penetrating scouring compound for use on interior and exterior surfaces that quickly and easily removes a multitude of stubborn stains. Cleans grout very well along with removing hard water deposits and soap scum on stone showers. From the Manufacturer Porcelain and Ceramic Tile Cleaner is a unique penetrating scouring Compound that quickly and easily removes stubborn stains, grease, soap scum, heel and scuff marks, dirt and everyday grime, Porcelain and Ceramic Tile Cleaner can be used by hand or with a floor machine and will also clean grout very well. Porcelain and Ceramic Tile Cleaner will also remove hard water deposits and soap scum on stone showers.