The DEWALT® hook and loop random orbit sandpaper is optimized through extensive real world testing to be tough and efficient. A separate coating and resin adhesive reduce gum-up and buildup caused by heat. With a chemically treated backing, the sandpaper resists tearing, allowing you to avoid wasting time and energy when sandpaper tears prematurely. This sandpaper increases effectiveness on the job with premium aluminum oxide grain, which removes material more efficiently.