3M 7000044842 Aluminum Oxide Lapping Disc 10 Inch

Product Description

The 3M 7000044842 is an aluminum oxide lapping disc designed for precision polishing of fiber optic connectors. The abrasive mineral is coated onto a 3-mil polyester film base with a pressure-sensitive adhesive (PSA) backing for secure mounting during use. Available in 0.30 micron and 5.0 micron grades, these discs deliver tight particle distribution that produces consistent cut rates, surface finish, and service life across production runs. The PSA backing allows quick disc changes without adhesive residue, keeping polishing workflows efficient. This product is intended for technicians and production personnel performing end-face finishing on fiber optic connector assemblies.

These lapping discs are used in fiber optic connector polishing applications, including both field and factory termination environments. The 10-inch diameter format suits polishing fixtures and jigs common in production and repair settings. The aluminum oxide abrasive is suited for polishing ferrule end-faces on ceramic, stainless steel, and plastic connector bodies. The 0.30 micron grade is typically used as a final polishing step, while the 5.0 micron grade is suited for intermediate stock removal before final finish. Technicians working on single-mode and multimode connectors will find both grades applicable to standard polishing sequences.

Key Features

• Aluminum oxide abrasive on 3-mil polyester film for dimensional stability during polishing
• PSA backing for fast, secure mounting on polishing fixtures
• Available in 0.30 micron and 5.0 micron grades for multi-step polishing sequences
• Tight particle size distribution ensures consistent cut rate and repeatable surface finish
• 10-inch diameter suits standard production and repair polishing fixtures

Compatibility

Designed for use with polishing fixtures and jigs that accept 10-inch PSA-backed lapping films; intended for fiber optic connector end-face polishing applications.

Installation Notes

Apply the disc to a clean, flat polishing fixture surface, pressing firmly from the center outward to eliminate air pockets under the PSA backing. Follow the connector manufacturer's recommended polishing sequence when selecting between the 0.30 micron and 5.0 micron grades. Inspect the disc surface before each use and replace if abrasive loading or tearing is observed. Dispose of used discs per applicable workplace safety guidelines.

Technical Specifications

• Abrasive Mineral: Aluminum Oxide
• Backing: 3-mil polyester film with PSA
• Available Grits: 0.30 micron, 5.0 micron
• Diameter: 10 inches
• Weight: 0.04 pounds
• UPC: 00051111499870

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044842