3M™ Wetordry™ 9 x 11 inch Sandpaper Sheet, 400 grit (Pack of 5 Sheets)
- Use 400 grit sandpaper to refine 320 grit scratches in primer. Follow this step by sanding with 600 grit sandpaper to refine 400 grit scratches prior to applying paint.
- Wetordry sandpaper can be used with or without water.
- Designed for hand sanding and can be easily attached to and used on a sanding block.