400 Grit 3M Imperial Wet/Dry Sandpaper 9x11 Sheets

400 Grit 3M Imperial Wet/ Dry Sandpaper 9" x 11" sheets utilizes a premium, aluminum oxide mineral, an improved paper backing, and an optimized construction that results in the following performance advantages: improved rate of cut, increased abrasive life, increased flexibility, and uniform, consistent finish.

Often used on power pads or flex pads with feathering disc adhesive for machine sanding boats, surfboards, kayaks, or automotive parts.

Fits the following sanding blocks/boards:

• 3M 2 3/4" x 4 7/8" Block, cut strips across the width of the paper
• 8 1/2 x 3" Block, cut strips down the length of the paper
• 9/12 x 2 3/4" Board, cut strips down the length of the paper