3M 7100150135 Hookit 360L Film Disc 5 Inch P320 Grit

Product Description

The 3M 7100150135 is a Hookit 360L coated abrasive film disc engineered for fine sanding on plastics, gel coats, polyurethane, fiberglass, and composite solid surface substrates. Built on a durable film backing rather than standard paper, it delivers consistent close-tolerance finishes while resisting edge tearing under sustained use. The aluminum oxide abrasive grain cuts fast and holds up across a range of surface materials. At 5 inches in diameter and rated to 12000 RPM, this disc is sized for standard random orbital and disc sanders used in high-production finishing environments. Installers and finishing professionals turn to it where surface quality and disc longevity both matter.

This disc is suited for bodywork, marine finishing, composite fabrication, and solid surface finishing applications. Open coat construction reduces loading, making it especially effective on softer or resin-rich substrates where standard discs clog quickly. The P320 grit designation places it in the fine finishing range, appropriate for final sanding passes before topcoat or polish. The Hookit attachment system allows fast disc changes and disc reuse without adhesive residue, supporting high-throughput workflows.

Key Features

• Aluminum oxide grain provides fast cut and extended service life across multiple surface types
• Film backing resists edge tearing and outlasts standard A-weight paper-backed discs in production environments
• Open coat construction minimizes loading on resin-rich, composite, and gel coat surfaces
• Hookit attachment system enables quick disc changes and disc reuse
• P320 fine grit delivers close-tolerance finish results suitable for pre-topcoat sanding passes
• 5 inch diameter fits standard random orbital disc sanders rated to 12000 RPM

Compatibility

Designed for use with 5 inch Hookit-compatible random orbital and disc sanders. Suitable for sanding and finishing on plastics, gel coats, fiberglass, polyurethane, and composite solid surface materials.

Installation Notes

Confirm the sander is rated at or above 12000 RPM before mounting this disc. Power down and disconnect the tool before attaching or removing discs. Press the disc firmly onto the Hookit pad to ensure full engagement before starting the tool. Dispose of worn discs per shop waste guidelines and inspect the backing pad regularly for wear that could affect finish consistency.

Technical Specifications

• Diameter: 5 inches
• Grit: P320
• Abrasive Grain: Aluminum Oxide
• Backing Type: Film
• Coat Type: Open Coat
• Attachment System: Hookit
• Maximum Speed: 12000 RPM
• Weight: 0.01 pounds
• UOM: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100150135