The toughest deep cleaner for safely removing your most stubborn dirt or greasy build-up. Stone & Grout Intensive Cleaner, is a concentrated, heavy duty alkaline cleaner that is incredibly powerful and fast acting. It ensures the best cleaning possibility for your natural stone surfaces. Intensive removes staining and heavy build up of soil, wax, grease and more! Safe for use on all polished surfaces. For use on: Marble, granite, concrete, ceramic tile, porcelain tile and grout.