3M 7100016734 Psa Abrasive Disc 5 in Aluminum Oxide Ultra Fine

Product Description

The 3M 7100016734 is a pressure-sensitive adhesive (PSA) abrasive disc designed for surface finishing and fine-material removal. Built on a flexible polyester film backing, it uses aluminum oxide as the abrasive mineral, delivering consistent cut and finish at ultra fine grade. The disc measures 5 inches in diameter and mounts directly to PSA-compatible backup pads without fasteners or hook-and-loop hardware. The flexible film backing conforms to contoured surfaces, maintaining abrasive contact across the work area. At 0.01 pounds per disc, it adds minimal weight to the sanding assembly. Licensed tradespeople and detail finishers working in automotive, woodworking, and metal fabrication applications will find this disc suited to final-stage surface prep work.

This disc is designed for use with random orbital sanders equipped with a PSA backup pad. It fits typical 5-inch PSA pad configurations and is well-suited for ultra fine finishing passes on wood, metal, composites, and painted surfaces. The absence of vacuum holes makes it appropriate for solid-pad applications where dust extraction through the disc is not required. The Series 268L designation indicates its place in the 3M abrasives line for film-backed finishing discs.

Key Features

• Aluminum oxide abrasive mineral rated at ultra fine grade for final-stage finishing
• Flexible polyester film backing conforms to contoured and flat work surfaces
• Pressure-sensitive adhesive mount for tool-free attachment and removal
• 5-inch diameter fits standard PSA random orbital sander backup pads
• No vacuum holes — designed for solid-pad use where dust extraction through the disc is not needed
• Light blue disc color for quick grade identification at the workbench

Compatibility

Compatible with random orbital sanders using 5-inch PSA (pressure-sensitive adhesive) backup pads. No vacuum holes are present, so this disc is not suitable for sanders requiring hole-pattern dust extraction through the abrasive.

Installation Notes

Installation is performed by a woodworker, automotive technician, or abrasives-trained professional. Before attaching or removing the disc, power down and unplug the sander. Align the disc squarely over the PSA backup pad and apply firm, even hand pressure across the full disc face to ensure full adhesive contact. Avoid touching the adhesive surface prior to mounting, as skin oils reduce bond strength.