Diamond polishing 17 yellow 1500 grit polishing pad – 2 per case diamond polishing is a revolutionary cleaning system consisting of floor pads containing billions of microscopic diamonds which clean and polish the floor mechanically instead of using chemicals. Diamond polishing can be used on most common floor surfaces such as terrazzo, natural stone, concrete, vinyl, and epoxy. Diamond polishing transforms dull, worn floors into clean, glossy, and brightly polished floors. 1500 grit diamond pad for initial polishing of concrete, natural stone and terrazzo floors. Brings the initial luster to the floor’s surface and prepares the floor for the final step. Recommended for use on machines up to 3,000 rpm. Sold 2 pads per case.