3M 7100145455 Cubitron Ii Sanding Film Disc 775L 400 Grit 6 in

Product Description

The 3M 7100145455 is a Cubitron II Hookit Clean Sanding Film Disc 775L, a 400-grit, 6-inch abrasive disc engineered for professional-grade surface finishing. It uses 3M Precision-Shaped Grain, a ceramic mineral formed into triangular shapes that slice through substrates rather than plowing or gouging like conventional abrasives. This cutting action produces faster stock removal with less heat and loading. The film backing provides strong tear resistance and flexibility while delivering a consistent, uniform finish. The multi-hole pattern is designed for enhanced dust extraction, extending disc life without requiring hole alignment to the backing pad. Installers and finishing techs in auto body, composite fabrication, and woodworking use this disc for final prep work.

This disc is suited for use on metals, composites, gelcoat, and whitewood. The 400-grit designation makes it appropriate for fine sanding and surface prep before priming or topcoating. The Hookit attachment system allows quick disc changes on compatible random orbital sanders. It is part of the 3M Xtract Series, which is built around optimized dust removal to maintain a cleaner work surface and extend abrasive life during continuous use. Pairing this disc with a 3M Xtract Random Orbital Sander delivers the best dust extraction performance.

Key Features

• Precision-Shaped Grain ceramic abrasive slices substrate rather than plowing for faster, cooler cuts
• 400-grit finish suitable for fine surface prep on metals, composites, gelcoat, and whitewood
• Multi-hole pattern optimizes dust extraction without requiring hole-to-pad alignment
• Film backing delivers tear resistance, flexibility, and a consistent, uniform finish
• Hookit attachment system enables fast disc swaps on compatible orbital sanders
• Part of the 3M Xtract Series, designed for maximum dust removal and extended disc life

Compatibility

Designed for use with Hookit-compatible random orbital sanders. For optimal dust extraction performance, pair with a 3M Xtract Random Orbital Sander. Die 600LG designation confirms pad and hole-pattern fitment.

Installation Notes

Attach the disc to a clean, compatible Hookit backing pad before use. Inspect the pad surface for debris or damage that could cause uneven contact. Operate the sander at manufacturer-recommended speeds for the grit and substrate being worked. Wear appropriate respiratory protection when sanding composites, painted surfaces, or materials that may generate hazardous dust.

Technical Specifications

• Grit: 400
• Disc Diameter: 6 inches
• Disc Series: 775L
• Attachment Type: Hookit
• Die Number: 600LG
• Abrasive Type: Precision-Shaped Grain Ceramic
• Backing Material: Film
• Unit of Measure: EA
• Alternate Part Number: 00638060050590

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100145455