Aqua Mix NanoScrub is an abrasive cream cleaner designed to work where other cleaners can't. It utilizes NanoSTG, tiny, nano-sized particles, to penetrate below tough stains, dissolve them, and lift them out. Aqua Mix NanoScrub offers the versatility, convenience, and safety of a water-based formula with performance that is not seen in any product on the market. Aqua Mix NanoScrub is especially effective for cleaning rough and textured surfaces. It is recommended for porcelain, ceramic, polished and unpolished natural stone (such as granite, limestone, marble, slate, and travertine), grout quarry, saltillo, terra cotta, cement pavers, masonry surfaces, and other stone, tile, and grout surfaces.