Merit Abrasives 08834173169 Psa Sanding Disc 120 Grit 20 in

Product Description

The MERIT ABRASIVES 08834173169 is a 20-inch pressure-sensitive adhesive sanding disc designed for stationary disc sanders in professional finishing and surface preparation applications. Built on a flexible cloth backing with an aluminum oxide abrasive, this disc delivers consistent stock removal at 120 grit — a fine grade suited for final shaping, blending, and finish preparation on wood, metal, and composite surfaces. Weighing 0.5 pounds, it is easy to handle and mount. The PSA backing allows direct application to compatible platen surfaces without mechanical fasteners, reducing changeover time during production or service work.

This disc is intended for use on stationary disc sanders in shop environments, including woodworking, metal fabrication, and general maintenance operations. The Series PSAAO designation identifies it as a pressure-sensitive adhesive aluminum oxide disc, appropriate for flat-platen sanding where consistent scratch patterns and controlled material removal are required. The flexible cloth backing conforms slightly under load, helping maintain uniform contact across the work surface. No vacuum holes are included, making it suited for solid-platen machines without dust extraction ports.

Key Features

• 20-inch diameter fits large stationary disc sander platens
• 120 grit aluminum oxide abrasive — fine grade for finish preparation and blending
• Flexible cloth backing maintains consistent contact under load
• Pressure-sensitive adhesive mount — no hardware required for installation
• No vacuum holes — designed for solid-platen disc sanders
• Black disc color; Series PSAAO construction

Compatibility

Designed for use on stationary disc sanders that accept 20-inch PSA-mount sanding discs with solid platens. Machine compatibility is listed as stationary disc sanders.

Installation Notes

Installation is performed by trade professionals or shop technicians maintaining stationary sanding equipment. Power down and lockout the sander before removing the worn disc or applying a new one. Clean the platen surface of adhesive residue before applying the new disc to ensure full, even contact. Avoid folding or creasing the disc during handling, as this can compromise the abrasive surface and adhesive layer.