Merit Abrasives 08834172093 Psa Disc 8 in 120 Grit

Product Description

The MERIT ABRASIVES 08834172093 is a pressure-sensitive adhesive (PSA) abrasive disc designed for surface preparation and finishing applications. The disc measures 8 inches in diameter and uses aluminum oxide abrasive at 120 grit for fine-grade material removal and surface smoothing. A flexible cloth backing allows the disc to conform to contoured surfaces while maintaining consistent contact. No vacuum holes are included, making it suited for solid-platen backing pads. This disc is installed by skilled tradespeople and fabricators working in metalworking, woodworking, and general surface conditioning tasks.

This PSA disc is used in shop environments where a self-adhesive mounting system is preferred over hook-and-loop fastening. The 8-inch diameter fits standard PSA backup pads of matching size found on bench-mounted, pedestal, and portable disc sanders. The fine 120 grit is appropriate for finish sanding passes, light stock removal, and surface prep before coating or finishing operations. The flexible cloth backing performs well on both flat and mildly contoured workpieces.

Key Features

• 8-inch diameter fits standard PSA backup pads
• 120 grit aluminum oxide abrasive for fine-grade finishing
• Flexible cloth backing conforms to contoured surfaces
• Pressure-sensitive adhesive mount — no mechanical fasteners needed
• No vacuum holes — designed for solid-platen backing pads
• Black disc color for easy visual identification

Compatibility

Designed as a direct-mount PSA replacement disc for use with 8-inch solid-platen PSA backup pads on bench, pedestal, and portable disc sanders.

Installation Notes

Power down and lock out the sander before removing or installing any abrasive disc. Peel the release liner from the PSA backing and apply the disc firmly to a clean, dry backup pad surface, pressing from the center outward to eliminate air pockets. Inspect the disc for tears or edge lifting before resuming operation. Discard any disc showing signs of wear, glazing, or backing separation.