Aside from being a fantastic and easy to handle free weight, Lo-Test is also an acidic pre-treatment for cleaning man-made tiles and grout. Lo-Test Acid Tile and Grout Cleaner helps dissolve grease and grime while maintaining an acidic pH. It eliminates scale, mineral deposits, and stains. The formula is safe and stable but works overtime as an aggressive degreaser on the acid side of the pH scale. Lo-Test acid tile cleaner can also be used as a daily maintenance cleaner when diluted 2 oz. per gallon of water, or as part of a healthy work-out regimine when lifted repeatedly.