3M Wetordry Pro-Pak 9 In. x 11 In. Super Fine Between Finish Coats Sanding Sheets, 400 Grit (25-Pack)

3M Pro pak Wet or Dry abrasives are specially designed for wet or dry sanding. Use 3M Imperial Wetordry Sandpaper for a premiere finish on lacquers, primers, sealers, plastics and paints. For final or between coats sanding.

• Silicon carbide abrasive, a sharp synthetic mineral that cuts fast and smooth
• Use with water or cutting oil to reduce clogging and extend abrasive life
• Offered in two weights of waterproof paper to suit your specific sanding needs: flexible "A" weight backing for contour sanding and durable "C" weight backing for improved stock removal and leveling general surfaces
• For flat areas, for use by hand or with sanding block