3M 7000044873 Abrasive Disc 8 Inch Aluminum Oxide Psa

Product Description

The 3M 7000044873 is an aluminum oxide lapping disc engineered for precision abrasive finishing applications. The mineral is coated onto a 3 mil polyester film substrate using a durable resin system, producing a consistent cut rate and predictable finish from the first use to the last. A pressure-sensitive adhesive (PSA) backing allows for fast attachment to compatible backup pads or platens. At 8 inches in diameter and weighing 0.02 pounds, each disc is sized for bench-top and machine finishing setups used by optical and mechanical finishing technicians.

This disc is suited for fiber optic connector finishing and roll superfinishing operations where tight surface finish tolerances are required. The aluminum oxide mineral and tight particle distribution deliver repeatable results across production runs. Available grades span 0.05 micron to 60.0 micron, allowing technicians to step through multiple finish stages using the same disc format. Typical users include precision manufacturing technicians, optical assembly shops, and surface finishing operations requiring controlled material removal.

Key Features

• PSA backing for fast, secure attachment to flat platens and backup pads
• Tight particle distribution delivers consistent cut rate, finish, and disc life
• Harder resin system than 261X for improved durability and cut consistency
• Aluminum oxide mineral on 3 mil polyester film substrate
• Available in grades from 0.05 to 60.0 micron
• Available in disc, sheet, and roll formats

Compatibility

Designed for use with flat platen finishing equipment and PSA-compatible backup pads used in fiber optic finishing and roll superfinishing applications.

Installation Notes

These discs are installed by a technician operating precision lapping or finishing equipment. Before changing discs, power down all rotating equipment and allow all moving parts to come to a complete stop. Ensure the backup platen or pad surface is clean and free of debris before applying the PSA-backed disc to prevent uneven adhesion. Follow equipment manufacturer guidelines for disc seating and alignment to maintain finish consistency.

Technical Specifications

• Diameter: 8 inches
• Mineral: Aluminum Oxide
• Backing Material: 3 mil polyester film
• Attachment Type: Pressure-Sensitive Adhesive (PSA)
• Grade Range: 0.05 to 60.0 micron
• Weight: 0.02 pounds
• UOM: Each
• UPC: 00051111501566

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044873