NanoScrub Stone, Tile, & Grout Cleaner is an abrasive cream cleaner specially formulated to tackle stains and residues where other cleaners fall short. Utilizing advanced nano-sized particles, this cleaner penetrates deep into tiny surface pores, effectively removing surface stains and buildup. It is for cleaning a wide variety of stone and tile surfaces including porcelain, ceramic, and both polished and unpolished natural stones such as granite, limestone, marble, slate, and travertine. It also works on quarry, saltillo, terra cotta, cement pavers, masonry surfaces, and grout. Beyond surface cleaning, NanoScrub removes factory-applied waxes, floor finishes, coating sealers, light grout residue including epoxy, rubber and pencil marks, light mineral deposits, ground-in dirt, and most sealer residues. This product is nontoxic, nonflammable, and nonacidic, making it a safe and effective choice for maintaining your stone and tile surfaces. Model Number: 100978-4