3M 7100136897 Hookit 360L Film Disc 3 Inch P600 Grit

Product Description

The 3M 7100136897 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. At 3 inches in diameter with a P600 grit rating, it uses aluminum oxide abrasive grain bonded to a durable film backing. The film backing resists edge tearing and holds tighter tolerances than standard A-weight paper backings, making it a reliable choice in high-production finishing environments. This disc is installed and removed using the Hookit hook-and-loop attachment system, allowing for fast disc changes and reuse throughout the disc life.

This disc is suited for finishing passes on composite panels, gel coat surfaces, fiberglass lay-ups, and polyurethane solid surface materials. The P600 grit designation places it in the fine finishing range, appropriate for final sanding stages before topcoat application or polishing. Its open-coat construction reduces loading when working with softer or resin-rich substrates. The 3-inch diameter fits compact random orbital and in-line sanders commonly used by auto body technicians, marine finishers, and composite fabricators.

Key Features

• Aluminum oxide abrasive grain provides a fast cut rate and extended service life across multiple surface types
• Durable film backing resists edge tearing and delivers consistent, close-tolerance finishes
• Open-coat construction reduces loading on softer substrates such as gel coat and polyurethane
• Hookit hook-and-loop attachment allows quick disc changes and disc reuse
• P600 grit suitable for fine finishing before topcoat or polish stages
• Rated to 20000 RPM for use with high-speed finishing tools

Compatibility

Designed for use with Hookit hook-and-loop backup pads accepting 3-inch diameter discs. Suitable for sanding plastics, gel coats, fiberglass, composites, and polyurethane solid surface materials.

Installation Notes

This disc is installed by a finishing technician onto a compatible Hookit hook-and-loop backup pad. Verify the backup pad and sander are rated to at least 20000 RPM before use. Inspect the hook-and-loop interface for wear before attaching a new disc to ensure full engagement and prevent disc slippage during operation. Always power down and disconnect the tool before changing discs.