Arc Abrasives 34981 Psa Disc Roll 6 in 320 Grit 100 Discs

Product Description

The ARC ABRASIVES 34981 is a pressure-sensitive adhesive (PSA) disc roll designed for sanding applications where fast, consistent stock removal and fine finish work are required. Each roll contains 100 discs, 6 inches in diameter, coated with gold aluminum oxide stearate at 320 grit A-weight. The open-coat construction reduces loading and heat buildup, extending disc life on wood, painted surfaces, and light metal finishing tasks. This roll format is a standard consumable for production shops, cabinet makers, auto body technicians, and finishing contractors using random orbital or disc sanders equipped with PSA backing pads.

This disc roll suits finishing operations in woodworking shops, furniture manufacturing, auto body refinishing prep, and general surface preparation. The 320 grit rating places it in the fine finishing range, appropriate for final sanding passes before sealing, priming, or topcoat application. The stearate lubricant coating helps resist clogging when working over resinous woods, primers, or light fillers. The roll packaging of 100 discs per roll supports high-volume production use and reduces changeover frequency.

Key Features

• 6-inch diameter PSA discs mount directly to PSA-compatible backing pads without fasteners
• 320 grit A-weight — fine finishing range suitable for pre-finish and pre-topcoat sanding
• Gold aluminum oxide stearate abrasive resists loading on resinous and painted surfaces
• Open-coat construction reduces heat and clogging for extended disc life
• 100 discs per roll for high-volume production environments

Compatibility

Designed for use with random orbital sanders and disc sanders equipped with 6-inch PSA (pressure-sensitive adhesive) backing pads.

Installation Notes

Ensure the backing pad surface is clean and free of debris before applying each disc to achieve full adhesive contact. Peel the disc from the roll liner and press firmly onto the PSA backing pad, working from the center outward to eliminate air pockets. Avoid running the sander at high speed on a single spot, as heat buildup will reduce abrasive life and may affect the adhesive bond. Discard discs that show loading, glazing, or loss of cut rate.

Technical Specifications

• Disc Diameter: 6 inches
• Grit: 320
• Grit Weight: A-Weight
• Abrasive Material: Gold Aluminum Oxide Stearate
• Coat Type: Open Coat
• Attachment Type: Pressure-Sensitive Adhesive (PSA)
• Quantity per Roll: 100 Discs
• Weight: 0.95 pounds

Standard Information

• Brand: ARC ABRASIVES
• Manufacturer Part Number: 34981