Use wet or dry for a premiere finish on lacquers, primers, sealers, plastics and paints 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.

• 400A grit
• 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
• For use by hand or with sanding block
• Waterproof paper
• Follow the grain of the wood when sanding
• Skip no more than one grit in sanding sequence
• Available in multiple grits