Neutral PH cleaner concentrate. For Natural Stone & Polished Concrete. Developed specifically for daily cleaning of boith high gloss and matte polished floors. Absolute Stone Cleaner will not dull or harm these surfaces, including Marble, Granite, Travertine, Limestone, Terrazzo, Slate and Terra Cotta. One quart of Absolute Stone Cleaner will mix up to 16 Gallons of cleaning solution.