3M Company 20320-G-4 Sandpaper 320 Grit 9x11 Inches 4 Pack

Product Description

The 3M COMPANY 20320-G-4 is a 320-grit abrasive sandpaper sheet designed for fine finishing work on wood, metal, and painted surfaces. Each sheet measures 9 inches by 11 inches and features a no-slip grip backing that holds the sheet securely during use. The advanced mineral abrasive construction is rated for extended sheet life compared to standard sandpaper. This product comes in a 4-pack and is suited for contractors, finish carpenters, auto body technicians, and detail-oriented tradespeople who require consistent cutting action at fine grit levels.

This sandpaper is appropriate for residential and light commercial finishing applications. Common uses include smoothing between coats of paint or primer, scuff-sanding bare wood before staining, and surface prep on metal prior to coating. The 320 grit is a fine-grade abrasive best applied in final prep stages rather than material removal stages. The 9-inch by 11-inch sheet size is compatible with hand sanding blocks and most standard sheet sanders used in finish and surface preparation work.

Key Features

• 320 grit fine abrasive for finish sanding and between-coat smoothing
• 9 inches by 11 inches full sheet format fits hand blocks and sheet sanders
• No-slip grip backing reduces sheet movement during sanding passes
• Advanced mineral technology for extended usable sheet life
• 4-pack format for multi-task or multi-session jobs

Compatibility

Designed as a general-purpose abrasive sheet compatible with standard hand sanding blocks and full-sheet pneumatic or electric sanders accepting 9-inch by 11-inch sheets.

Installation Notes

Surface preparation abrasives are typically applied by finish carpenters, painters, auto body technicians, and general tradespeople. Ensure the workpiece is secure and the work area is ventilated when sanding painted or coated surfaces, particularly on older substrates. Wear appropriate respiratory protection and eye protection during use. Inspect the sheet for clogging or wear and replace when cutting action diminishes.

Technical Specifications

• Grit: 320
• Sheet Size: 9 inches x 11 inches
• Pack Quantity: 4 sheets
• Weight: 2.12 pounds
• Backing Type: No-slip grip
• Unit of Measure: EA

Standard Information

• Brand: 3M COMPANY
• Manufacturer Part Number: 20320-G-4