3M 7000028340 Hook and Loop Paper Disc 216U 5 in P320

Product Description

The 3M 7000028340 is a coated abrasive hook-and-loop paper disc designed for finishing work on a wide range of surfaces. Built on a lightweight A-weight paper backing with aluminum oxide mineral, this disc delivers fast, consistent cuts on wood, primer, paint, sealers, topcoats, fiberglass, and plastics. At P320 grit, it targets fine finishing passes rather than aggressive stock removal. The open-coat construction and load-resistant coating work together to resist clogging, maintaining cut performance and extending disc life through extended use. Licensed for use with hook-and-loop random orbital sanders, the disc attaches and releases quickly, reducing changeover time on the job.

This disc is suited for finishing applications in automotive refinishing, woodworking, and composite surface prep. It performs on both flat and contoured surfaces when paired with a 5-inch random orbital sander. The P320 grit makes it appropriate for final sanding before topcoat application or for light denibbing between coats. Bodywork technicians, finish carpenters, and composites fabricators will find this disc fits standard finishing workflows without requiring specialty equipment or adapters.

Key Features

• Aluminum oxide mineral provides durable, fast-cutting abrasive action across multiple surface types
• Open-coat construction reduces loading on soft materials such as wood, primer, and paint
• Load-resistant coating extends disc life and maintains consistent cut rate
• Lightweight A-weight paper backing is optimized for fine finishing rather than heavy stock removal
• Hook-and-loop attachment allows fast disc changes and supports disc reuse
• Rated to 12000 RPM for compatibility with standard random orbital sanders

Compatibility

Designed for use with 5-inch hook-and-loop random orbital sanders used in finishing applications on wood, primer, paint, sealers, topcoats, fiberglass, and plastics.

Installation Notes

Install by pressing the disc firmly onto the hook-and-loop pad of the sander before powering the tool on. Confirm the sander pad and disc are properly aligned before starting. Inspect the disc for tears or excessive loading before reattaching for reuse. Always operate within the maximum rated speed of 12000 RPM and wear appropriate eye and respiratory protection during sanding operations.

Technical Specifications

• Disc Diameter: 5 inches
• Grit: P320
• Abrasive Mineral: Aluminum Oxide
• Backing: A-Weight Paper
• Coat Type: Open Coat
• Attachment Type: Hook and Loop
• Maximum Speed: 12000 RPM
• Package Dimensions: 11.3 x 5.9 x 6.3 inches
• Weight: 0.01 pounds
• UOM: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000028340