Gliptone Metal Polish Treated Cotton Pad Coarse 4 Oz. Gliptone Coarse Abrasive Polish is recommended for use as a stripping and smoothing agent on rough heavily oxidized, or corroded non-plated metals Gliptone Coarse Abrasive Polish functions in a similar manner to liquid sand paper, and should be followed by Gliptone Medium or Ultra Fine Abrasive Formula polishes to achieve a brilliant shine Do NOT use on mirror stainless, chrome, nickel, or any plated materials