3M 7000119239 Psa Disc 280 Grit 5 Inches 175 Pack

Product Description

The 3M 7000119239 is a pressure-sensitive adhesive (PSA) abrasive disc designed for surface finishing and stock removal on a range of materials. It measures 5 inches in diameter, carries a 280 grit rating, and uses silicon carbide as the abrasive mineral. The very fine grade and A-weight paper backing make this disc well suited to finish sanding operations where a smooth, consistent surface is the goal. The disc mounts directly to PSA-compatible backup pads without fasteners or hook-and-loop hardware, simplifying changeovers. Each package contains 175 discs. This product is part of the 3M 426U series.

These discs are used in light manufacturing, woodworking shops, auto body prep, and general metalworking finishing applications. The silicon carbide abrasive cuts cleanly on wood, composites, paint, and non-ferrous metals. The flexible paper backing conforms to slightly contoured surfaces, reducing chatter and improving finish consistency. Machine compatibility is listed for random orbital sanders equipped with PSA backup pads. No vacuum holes are included, so dust collection relies on the equipment's shroud or operator technique.

Key Features

• 5-inch diameter fits standard PSA backup pads on random orbital sanders
• 280 grit very fine grade silicon carbide abrasive for finish sanding passes
• A-weight paper backing provides flexibility on slightly curved or flat surfaces
• Pressure-sensitive adhesive mount allows fast disc changes without hook-and-loop hardware
• No vacuum holes — compatible with non-vented backup pads
• 175 discs per package reduces restocking frequency on high-volume jobs

Compatibility

Designed for use with random orbital sanders equipped with PSA (pressure-sensitive adhesive) backup pads accepting 5-inch abrasive discs. Part of the 3M 426U series.

Installation Notes

Clean the backup pad surface before applying each disc to ensure full adhesive contact and prevent premature release during operation. Power down and unplug or lock out the sander before mounting or removing any abrasive disc. Peel the liner from the disc, align it centered on the backup pad, and press firmly before starting the tool. Dispose of worn discs promptly — a disc that has lost adhesion can separate at operating speed and create a hazard.