Merit Abrasives 08834172122 Psa Disc 9 in 120 Grit

Product Description

The MERIT ABRASIVES 08834172122 is a 9-inch pressure-sensitive adhesive (PSA) abrasive disc designed for surface finishing and material removal applications. It features a 120-grit aluminum oxide abrasive bonded to a flexible cloth backing, placing it in the fine-grade range for smooth, controlled stock removal. The PSA backing allows direct mounting to compatible foam or hard backup pads without separate fasteners. This disc is well-suited for metalworking, woodworking, and general fabrication tasks where consistent finish quality is required. It is typically installed and used by metal fabricators, machinists, cabinet makers, and industrial maintenance technicians.

This disc is intended for use on stationary or portable disc sanders equipped with a 9-inch PSA-compatible backup pad. The flexible cloth backing conforms to slightly contoured surfaces, making it useful for both flat and mildly curved workpieces. At 120 grit, it performs well in intermediate finishing steps — after coarser stock removal and before final polishing or coating preparation. No vacuum holes are present, so dust collection must be managed through external means or open-air operation.

Key Features

• 9-inch diameter fits standard PSA backup pads for disc sanders
• 120-grit aluminum oxide abrasive for fine-grade finishing and surface prep
• Flexible cloth backing conforms to flat and mildly contoured workpiece surfaces
• Pressure-sensitive adhesive mount — no mechanical fasteners required
• No vacuum holes — compatible with solid backup pad configurations
• Black disc color for easy visual identification during use

Compatibility

Designed as a direct-mount PSA abrasive disc for use with 9-inch PSA-style backup pads on stationary disc sanders and portable grinders configured for PSA discs.

Installation Notes

Power down and disconnect the sander or grinder before mounting or removing the disc. Peel the release liner from the PSA backing and press the disc firmly and evenly onto a clean, dry backup pad to ensure full adhesion across the surface. Avoid contaminating the adhesive face with oils, dust, or moisture prior to application, as this will reduce holding strength during operation.