Phosphoric Acid Substitute
Acidic treatment designed to remove grout haze, mineral deposits, rust stains, mortar smears, and efflorescence. Effective for the removal of most hard water stains, lime deposits, and soap scum. Also removes cement grout and mortar residue from tile, concrete, and masonry. Etches concrete. No phosphates.
For use on Acid resistant natural stone (such as granite and slate), ceramic,
porcelain, quarry, Saltillo, terra-cotta, and other acid-resistant tile