The HG Tile Cement Grout Film Remover is a powerful solution that effectively removes stubborn cement residue from all types of ceramic tiles, flagstones, and non-calciferous natural-stone surfaces like slate, granite, and quartzite. This grout film remover strengthens grout and can be used on both porous and non-porous surfaces. Keep your tiles and natural stone surfaces looking clean and fresh with the HG Tile Cement Grout Film Remover.