3M 7000044863 Aluminum Oxide Polishing Disc 8 Inch

Product Description

The 3M 7000044863 is an aluminum oxide lapping and polishing disc engineered for precision finishing of fiber optic connectors. The abrasive mineral is coated on a 3-mil polyester film substrate and backed with a pressure-sensitive adhesive (PSA) for fast, secure mounting on polishing fixtures. Tight particle size distribution across the abrasive layer delivers a consistent cut rate, predictable finish quality, and repeatable disc life from the first connector to the last. Available in 0.30 micron and 5.0 micron grades to match the polishing stage required.

This disc is used in fiber optic termination and connector polishing applications where surface finish consistency is critical. Technicians working in telecommunications, data center infrastructure, and structured cabling installations use these discs on polishing pucks and fixtures to achieve low-insertion-loss connector finishes. The PSA backing allows quick disc changes during high-volume termination runs. The 8-inch diameter suits standard polishing plates used in field and shop termination environments.

Key Features

• Aluminum oxide abrasive mineral on 3-mil polyester film for dimensional stability
• Pressure-sensitive adhesive backing for secure fixture mounting and fast changeover
• Tight particle distribution ensures consistent finish across each disc
• Available in 0.30 micron and 5.0 micron grades for multi-stage polishing
• Consistent cut rate and disc life reduces process variability

Compatibility

Designed for use in fiber optic connector polishing applications utilizing standard polishing fixtures and pucks that accept 8-inch PSA-backed lapping films.

Installation Notes

Installation is performed by fiber optic termination technicians following standard connector polishing procedures. Ensure the polishing plate or puck surface is clean and free of debris before applying the PSA-backed disc to prevent air pockets that affect finish uniformity. Follow the connector and fixture manufacturer polishing sequence when transitioning between micron grades. Inspect the disc for wear and replace at the interval recommended by the polishing process specification.

Technical Specifications

• Abrasive Mineral: Aluminum oxide
• Backing Material: 3-mil polyester film
• Backing Type: Pressure-sensitive adhesive (PSA)
• Disc Diameter: 8 inches
• Available Micron Grades: 0.30 micron, 5.0 micron
• Weight: 0.02 pounds
• UOM: Each
• UPC: 00051111500972

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044863