3M 7100031687 5 Inch P220 Grit Sanding Disc Film Backing

Product Description

The 3M 7100031687 is a 5-inch hook-and-loop sanding disc designed for fast stock removal and close-tolerance finishing on wood, paint prep, and defect repair work. It uses aluminum oxide abrasive grain bonded to a flexible film backing rather than paper, which delivers a more consistent scratch pattern and resists tearing under production-level use. An open-coat construction keeps the abrasive cutting aggressively, and a load-resistant coating prevents dust and debris from glazing the disc surface. This disc is suited for automotive body shops, woodworking operations, and general surface preparation tasks where finish consistency and disc longevity matter.

This disc fits standard 5-inch random orbital and orbital sanders equipped with a hook-and-loop (Hookit-style) pad. The P220 grit rating makes it appropriate for finish sanding, scuff sanding, and inter-coat paint preparation on wood, composites, and cured paint surfaces. The flexible film backing conforms slightly to contoured surfaces, making it a practical choice for body work and shaped panel finishing in high-production environments where disc changes need to be fast and frequent.

Key Features

• Aluminum oxide grain provides fast cut rate and extended service life across a range of surface materials
• Film backing offers greater tear resistance compared to paper-backed discs at the same grit
• Open-coat construction maintains an aggressive cut throughout the life of the disc
• Load-resistant coating reduces clogging from dust and paint debris
• Hook-and-loop attachment allows quick disc changes and permits reuse of the disc until abrasive is spent

Compatibility

Designed for use with 5-inch hook-and-loop sanding pads on random orbital and orbital sanders commonly used in automotive refinishing, woodworking, and general surface preparation applications.

Installation Notes

Ensure the sanding pad is clean and free of debris before attaching the disc to maintain a secure hook-and-loop bond. Do not exceed the rated 12000 RPM maximum speed of the disc. Inspect the disc and backing pad before each use and replace if tearing, delamination, or heavy loading is observed. Wear appropriate eye and respiratory protection when sanding painted or composite surfaces.