Aqua Mix Poultice Stain Remover is a dual-purpose, non-acidic problem solver that removes even the deepest stains without scrubbing. Its unique formula creates an easy-to-use paste to absorb the stains right out of the surface. Aqua Mix Poultice Stain Remover is recommended for all natural stone, such as granite, limestone, marble, slate, and travertine; porcelain; quarry; saltillo; terra cotta; cement pavers; masonry surfaces; and other porous tile and grout.