Johnson Abrasives’ Screen-Kut Mesh Sanding Sheets (3-5/6in x 12in, 150 Grit, 25pk) feature a sharp silicon carbide abrasive on an open mesh backing made for sanding plaster and drywall joint compounds. The die-cut sheets have a 10-1/4in bias cut for aggressive action without groove lines. This is the cleanest screen on the market.