ZON37-948 Premium Polishing Paper 6 Pack by Zona Tools 6-pc, Assorted, 8-1/2 x 11-in.,1-30 Micron, (Green-30 micron, Gray-15 micron, Light Blue-9 micron, Pink-3 micron, Aqua-2 micron, White/1 micron) Aluminum Oxide / Silicon Carbide. 3M polishing papers with super flexible non-woven backings for polishing flat or curved softer surfaces: acrylic, polyurethane, solid surface composites, fiberglass, aluminum, precious metals and finished wood. Use with or without water. Work in sequence from coarsest to finest grade (1-30). Cut into strips for Sanding Sticks or make bands using tape for Finger Sanders. 3M Wetordry Polishing Papers provide excellent flexibility for finishing and polishing plastics, metal and coatings. Comprised of micron graded aluminum oxide and silicone carbide particles slurry coated onto a non-woven synthetic backing. The superior flexibility of this product allows for fast and easy finishing and polishing on flat and contoured surfaces.