Designed for use with a random orbital sander, the strong C-weight paper backing on the 3M™ Hookit™ Paper Disc 236U resists tearing and edgewear during aggressive sanding, and the disc is resin-bonded for heat-resistance. These discs also feature an open coat and a load-resistant coating to enhance dust management and cut-rate. A load-resistant coating allows the disc to continue cutting even when sanding softwoods, paints, and other materials that would otherwise clog the surface of the disc and hinder sanding ability. Loading is further reduced by an open coat, which means the abrasive grains are spaced slightly apart so that dust can escape rather than obstructing the cutting edge of the grains, thereby optimizing cut-rate and disc life.
