3M Precision Shaped Grain Adhesive-Backed/PSA Sanding Disc Abrasive Disc, 76.2 mm, 320+ Grade, 320 Grit

This adhesive-backed/PSA sanding disc is a high-performance abrasive designed for heavy stock removal and finishing across wood, metals and composites in industrial settings. Built with precision-shaped grain and a Durable cotton cloth backing, it is intended for use with hook-and-loop or PSA back-up pads and vacuum-capable random orbital sanders to reduce downtime and improve throughput in production environments.

• Precision-shaped grain reduces cut time and extends abrasive life
• Open coat construction resists loading for sustained cutting
• Anti-static treatment helps control dust during sanding operations
• Cloth backing balances wear resistance with conformability
• Compatible with hook-and-loop attachment to simplify changes

• Suitable for aggressive removal of weld spatter and oxide on metal
• Ideal for surface preparation of aluminium prior to finishing
• Used for Rapid material removal on hardwoods and softwoods
• Can be used for trimming and blending gelcoat on composite panels
• Suitable for use with vacuum back-up pads in automated sanding cells

Use a multi-hole back-up pad designed for extraction and connect to a vacuum-capable random orbital Sander to maximise dust removal.

The treatment neutralises static charge on swarf, reducing cling to both the disc and workpiece when used alongside a collection system.

The cloth backing and precision grain deliver extended life and fewer disc changes, supporting higher throughput in repetitive operations.

The open coat mineral layout maintains cutting action on aluminium, fibreglass, hardwoods, softwoods and composite substrates.