Sharp Abrasive for a Refined Finish With its open coat construction and aluminum oxide mineral abrasive, our 3M™ Hookit™ Gold Disc 216U provides a sharp cut – more aggressive than a comparable closed coat abrasive of the same grade – without dust accumulating on the disc. And its fine grades from P220 to P800 along with light A-weight paper backing make it ideal for feather-edging, as a final step before priming or for primer sanding. The Hookit™ Gold Disc 216U is available in 3-, 5- or 6-inch diameter sizes for substrates including clear coat, fiberglass, paint, primer and plastic. Resists Dust and Debris Open coat construction means the abrasive grains on our 3M™ Hookit™ Gold Disc 216U are placed with space between them to help evacuate sanding dust and other debris to avoid clogging the cutting edge of the grains. The load-resistant coating on the abrasive grains also allows the disc to continue cutting even when sanding paints and other materials that would otherwise clog the disc and hinder sanding ability. All of this adds up to increased productivity and reduced material consumption.