StoneTech Oil Stain Remover, Cleaner for Natural Stone, Grout, & Masonry, 1-Pint (.473L) Designed to remove deep, set-in oil-based stains without discoloring the surface Easy-to-use product leaves no residue behind Recommended surfaces include: marble, granite, limestone, travertine, slate, sandstone, grout for ceramic and porcelain tile, masonry, and concrete Approximate coverage is 1/2 to 1 square feet of surface at 1/4" thickness