The 3M™ Clean Sanding Disc 236U offers superior dust control, aggressive cut, and long life on a premium aluminum oxide disc with a durable edge and convenient Hookit attachment. It features a 3M proprietary multi-hole Clean Sanding pattern that evacuates dust better than 5- or 6-hole products — dramatically increasing disc life. A go-to product in many industrial operations, this durable disc is well suited for high production sanding operations as well as general purpose applications. Choose this disc for blending and finishing on aluminum and carbon steel, and for woodworking applications such as heavy and medium stock removal and finishing on hardwoods, softwoods, and composites. This disc also works well on primer, paint, sealers, topcoats, fiberglass, and plastics. Designed for use with a random orbital sander, the strong C-weight paper backing resists tearing and edgewear during aggressive sanding, and the disc is resin-bonded for heat-resistance, further increasing life and cut. These discs also feature an open coat and a load-resistant coating to enhance dust management and cut-rate.