Miracle Sealants Tile & Stone Cleaner is a pH neutral cleaner designed for use on all interior and exterior tile, stone, grout and masonry surfaces. Nontoxic cleaner is strong enough for the professional, yet gentle enough for the do- it-yourself specialist. Effective as an ongoing maintenance cleaner for surfaces previously sealed with the appropriate Miracle Penetrating Sealer/Impregnator. Will not harm the polish on polished stone surfaces.