Norton 66261183822 Psa Disc 320 Grit 6 Inches 100 Discs

Product Description

The NORTON 66261183822 is a pressure-sensitive adhesive (PSA) abrasive disc engineered for surface finishing with random orbital sanders. Manufactured from aluminum oxide abrasive on a B-weight paper backing, this disc delivers consistent extra fine (320 grit) cutting action suited for final stock removal, between-coat sanding, and surface prep before finishing. The PSA backing allows fast disc changes directly on compatible sander platens. At 6 inches in diameter and rated to 15,000 RPM, it fits standard 6-inch PSA sander pads. Each package contains 100 discs, making it practical for shop use or service vehicles where volume is a factor.

This disc is designed for wood, painted surfaces, primers, and light metal finishing tasks where a fine, uniform scratch pattern is required before topcoat or polish. The aluminum oxide grain provides a durable, consistent cut across multiple passes. The yellow paper backing with no vacuum holes is suited for solid-platen random orbital sanders that do not use dust extraction through the disc. The flexible construction conforms moderately to contoured surfaces without tearing during use. Typical users include finish carpenters, cabinet makers, auto body technicians, and general maintenance trades requiring controlled surface refinement at the 320-grit level.

Key Features

• 320 grit extra fine aluminum oxide abrasive for consistent fine finishing
• B-weight paper backing provides durability and flexibility on contoured surfaces
• PSA backing enables quick disc mounting and removal on compatible sander pads
• No vacuum holes — designed for solid-platen random orbital sanders
• Rated to 15,000 RPM for safe use at full sander speed
• Series A296 construction; 100 discs per package for high-volume shop use

Compatibility

Designed for use with random orbital sanders equipped with 6-inch solid PSA sander pads. Not compatible with hook-and-loop platens or dust-extraction pads requiring vacuum holes.

Installation Notes

Ensure the sander platen surface is clean and free of adhesive residue before applying a new disc to maintain proper bond. Press the disc firmly and evenly onto the platen before powering on the sander. Do not exceed the rated 15,000 RPM maximum speed. Discs with degraded adhesion should be replaced immediately to prevent disc separation during operation.