3M 7100142948 Hookit 360L Film Disc 5 Inch P400 Grit

Product Description

The 3M 7100142948 is a Hookit 360L coated film disc designed for fine sanding and finishing work on plastics, gel coats, fiberglass, and polyurethane solid surface substrates. It uses aluminum oxide abrasive grain bonded to a durable film backing that resists edge tearing and provides consistent, close-tolerance finishes. Rated at 12000 rpm and sized at 5 inches in diameter with a P400 grit rating, this disc is built for high-production environments where disc longevity and cut consistency matter. The Hookit attachment system allows fast disc changes and reuse over the life of the disc.

This disc is well suited for body shop technicians, composites fabricators, fiberglass repair specialists, and industrial finishers working on gel coat surfaces, painted plastics, and solid surface materials. The open coat construction reduces loading, which extends disc life and maintains cut rate during continuous use. It is commonly used in automotive refinishing, marine fiberglass repair, and surface prep on polyurethane and composite panels where a fine, consistent scratch pattern is required before topcoat application.

Key Features

• Aluminum oxide abrasive delivers a fast cut rate and extended service life across a range of surface materials
• Durable film backing resists edge tearing for longer disc life compared to standard A-weight paper backing
• Open coat construction reduces loading and maintains an aggressive, consistent cut during high-production use
• Hookit attachment system enables quick disc changes and allows disc reuse, improving utility over the disc life
• Suitable for sanding and finishing on composites, gel coats, fiberglass, plastics, and polyurethane solid surface substrates
• 12000 rpm maximum operating speed supports use with standard random orbital and disc sanders

Compatibility

Designed for use with 5 inch Hookit backup pads and compatible random orbital or disc sanders that accept hook-and-loop attachment systems.

Installation Notes

Mount the disc onto a clean, dry 5 inch Hookit backup pad before use. Inspect the backup pad face for debris or worn hooks that could cause uneven disc seating before each change. Do not exceed the 12000 rpm maximum speed rating. Worn or damaged discs should be removed and discarded rather than continued in service.