3M 7100093078 Hookit 360L Film Disc 3 Inch P500 Grit

Product Description

The 3M 7100093078 is a Hookit 360L coated abrasive film disc designed for fine sanding and finishing work on plastics, gel coats, fiberglass, composites, and polyurethane solid surface substrates. Built on a durable film backing rather than standard paper, it delivers close-tolerance, consistent finishes in high-production environments. The aluminum oxide abrasive grain provides a fast cut rate and extended disc life. At 3 inches in diameter with a P500 grit rating and a maximum speed of 20000 rpm, this disc is suited for precision surface prep where finish quality matters. Licensed tradespeople and finishing technicians across marine, automotive, and fabrication trades use this disc for controlled material removal on sensitive surface materials.

This disc is intended for sanding and finishing applications on composites, gel coats, fiberglass, and polyurethane solid surfaces. Its open coat construction resists loading, making it effective when working with materials that can clog conventional abrasives quickly. The Hookit attachment system allows fast disc changes without adhesive, which improves efficiency during high-volume finishing runs. Typical applications include surface preparation before topcoat application, blending repairs on gel coat panels, and fine finishing passes on fabricated plastic components.

Key Features

• Aluminum oxide abrasive grain delivers fast cut and long service life across multiple surface types
• Film backing provides superior tear resistance and consistent finish tolerance compared to A-weight paper backings
• Open coat construction reduces loading when sanding plastics, gel coats, and composites
• Hookit attachment system enables quick disc changes and allows reuse over the disc life
• Rated to 20000 rpm for use with compatible random orbital and disc sanders
• P500 grit for fine sanding and pre-finish surface preparation

Compatibility

Designed for use with 3-inch Hookit-compatible random orbital sanders and disc pads. Suitable for sanding and finishing on composites, gel coats, fiberglass, plastics, and polyurethane solid surface materials.

Installation Notes

Attach the disc to a clean, dry Hookit-compatible backing pad before use. Verify the sander does not exceed the 20000 rpm maximum speed rating before operating. Inspect the disc for tears or loading before each use and replace as needed. Always wear appropriate eye protection and dust respiratory protection when sanding composites or fiberglass, as generated dust may be a health hazard.

Technical Specifications

• Disc Diameter: 3 inches
• Grit: P500
• Abrasive Mineral: Aluminum Oxide
• Backing Type: Film
• Coat Type: Open Coat
• Attachment Type: Hookit (Hook and Loop)
• Maximum Speed: 20000 rpm
• Weight: 1.691 pounds
• Package Dimensions: 8.34 x 7.01 x 3.7 inches
• UPC: 051125871421

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100093078