3M 7000044745 Psa Abrasive Disc 5 Inch Ultra Fine

Product Description

The 3M 7000044745 is a 5-inch pressure-sensitive adhesive (PSA) abrasive disc built for ultra fine finishing work on random orbital sanders. The disc uses aluminum oxide abrasive grain bonded to a flexible polyester film backing, which conforms to contoured surfaces and delivers a consistent scratch pattern. At ultra fine grade, it is suited for final finishing passes, light de-nibbing, and surface prep before coating or polishing. The flexible film backing resists tearing during use and helps maintain uniform abrasive contact across the workpiece. Each disc ships individually and attaches directly to PSA-compatible backup pads without hardware.

This disc is designed for surface finishing in automotive refinishing, metal fabrication, woodworking, and composite work. It performs best on flat or slightly curved surfaces where a fine, uniform finish is required before topcoat application or final polishing steps. The red polyester film backing and ultra fine aluminum oxide grain make it a go-to choice for trades professionals performing detail finishing, primer smoothing, or light scuffing between coats. It is compatible with random orbital sanders equipped with PSA backup pads.

Key Features

• Ultra fine aluminum oxide abrasive grain for final finishing and light surface prep
• Flexible polyester film backing conforms to contoured and flat surfaces
• PSA attachment — mounts directly to PSA-compatible backup pads, no hook-and-loop hardware required
• No vacuum holes — suitable for applications where dust port alignment is not required
• Part of the 3M 268L series, designed for consistent cut and finish performance
• Lightweight at 0.01 pounds per disc — minimal added mass on the sander

Compatibility

Designed for use with random orbital sanders equipped with 5-inch PSA backup pads. No vacuum holes are included, so this disc is not intended for sanders that rely on through-disc dust extraction.

Installation Notes

Installation is performed by the operator or finishing technician — no special tools required. Power down and unplug the sander before changing discs. Align the disc flat against the PSA backup pad and press firmly from center outward to ensure full adhesive contact and prevent edge lifting during use. Do not exceed the sander manufacturer's rated RPM for the backup pad in use.