Description

The MERIT ABRASIVES 08834173168 is a 20-inch pressure-sensitive adhesive sanding disc designed for use on stationary disc sanders. Built on a flexible cloth backing with aluminum oxide abrasive, this disc delivers consistent stock removal across flat and slightly contoured work surfaces. At 100 grit, it falls in the fine grade range, making it well-suited for finish preparation and surface smoothing rather than heavy material removal. The disc weighs 0.5 pounds and mounts without fasteners, relying on its PSA adhesive layer for a secure, repositionable bond to compatible sanding tables. No vacuum holes are included in this disc configuration.

This disc is intended for stationary disc sander applications in woodworking shops, fabrication facilities, and trade environments where consistent finish sanding is required. The flexible cloth backing allows the disc to conform slightly to the sanding platen surface, maintaining even abrasive contact. The black aluminum oxide construction handles both wood and certain composite materials. The Series PSAAO designation identifies it as part of Merit’s pressure-sensitive adhesive aluminum oxide disc line. It is sold as a single disc per package.

Key Features

20-inch diameter fits large stationary disc sander platens
100 grit aluminum oxide abrasive for fine-grade surface finishing
Flexible cloth backing for consistent platen contact
Pressure-sensitive adhesive mount no mechanical fasteners required
No vacuum holes designed for solid platen use
Series PSAAO construction; black disc color

Compatibility

Designed for use with stationary disc sanders that accept 20-inch PSA-mount sanding discs. Verify platen diameter and confirm the machine accepts pressure-sensitive adhesive discs before installation.

Installation Notes

Power down and lock out the sanding machine before removing the old disc or mounting a new one. Clean the platen surface thoroughly to remove adhesive residue, dust, and oils before applying the new disc contamination reduces bond strength. Peel the release liner and apply the disc to the center of the platen, pressing outward to eliminate air pockets. Allow the adhesive to seat for a short period before returning the machine to service.