Cool-cutting sandpaper sheets optimized for use on all surfaces have an open-coat ceramic abrasive applied to a paper backing. Ceramic self-sharpens faster than other abrasives to remove material quicker. Quicker material removal speeds up the work and keeps the surface cooler, making ceramic a good choice for heat-sensitive metals. Open-coat abrasives have grit on about 50% of the surface leaving space between the abrasive grains to prevent swarf from clogging the surface which keeps the workpiece cooler. The paper backing provides a smooth, flat surface to provide consistent pressure across the work surface. Compatible surfaces and substrates include paint, plastic, composites, gelcoat, fiberglass, and carbon steel.