3M Gold Paper Sheet 216U/255P is an abrasive sheet designed with an open coat aluminum oxide abrasive. These sheets provide productivity in a wide variety of applications from express repair to large body repair. Coarser varieties are ideal for feather edging filler and putty, while finer grades work well for further refinement and primer sanding.Use 3M Gold Abrasive Sheet 216U/255P for various panel shop sanding tasks. 3M Gold Abrasives are precision coated with high quality minerals and resins to deliver longer-lasting abrasives that cut through a variety of surfaces - including paint, primer, fiberglass, metal and SMC. 3M Gold Abrasives produce uniform, consistent finishes. 3M Gold Paper Sheets are made of long-lasting aluminum oxide abrasive grains on a light A-weight paper backing suitable for lightweight hand sanding and finishing. The open coat and load-resistant coating help prevent loading for longer use, and help produce a smooth, consistent finish. Additionally, this open coat feature provides a more aggressive cut than a comparable closed coat abrasive of the same grade, for faster results.