A deep penetrating ceramic and porcelain tile and grout restorer that is able to remove stains and dirt build up, leaving you with a new tile look. Warning: Not for use on marble or natural stone floors, or any other surface susceptible to etching. Excellent for use on: ceramic and porcelain tile in restrooms, kitchens, cafeterias, laundry rooms, entrances, restaurants, service plazas, etc. Effective in restoration of areas that otherwise would have required replacement.