3M 7000000559 Aluminum Oxide Lapping Film Disc 5 Inch

Product Description

The 3M 7000000559 is a 5-inch diameter lapping film disc engineered for precision material removal and ultra-fine surface finishing. Aluminum oxide mineral is coated onto a 3 mil polyester film backing using a durable resin system designed to outlast standard resin bonds. The disc is available in seven grades ranging from 0.05 to 60.0 microns, giving technicians and process engineers the flexibility to select the exact abrasive cut for their application. Tight particle distribution across the coating ensures a predictable, repeatable finish with each pass. This product is suited for shop and field professionals working in high-precision finishing environments.

Primary applications include fiber optic connector finishing and roll superfinishing, where consistent cut rate and surface finish are critical across high-volume production or service runs. The polyester film backing provides dimensional stability under load, making these discs well suited for automated finishing equipment as well as hand-tool applications. The disc format is compatible with flat lap and rotary finishing setups used in telecommunications, optical assembly, and precision manufacturing maintenance environments.

Key Features

• Aluminum oxide mineral on 3 mil polyester film backing for dimensional stability
• Harder resin system compared to 261X series for extended disc life
• Tight particle size distribution delivers consistent cut rate and finish
• Available in seven grades from 0.05 to 60.0 microns
• Suitable for fiber optic finishing and roll superfinishing applications
• Available in disc, sheet, and roll formats

Compatibility

Designed for use in flat lap, rotary, and automated lapping equipment that accepts 5-inch diameter film discs; common in fiber optic connector polishing and precision roll superfinishing operations.

Installation Notes

Installation and disc changes should be performed with equipment fully powered down and at rest. Ensure the backing plate or platen is clean and free of debris before seating the disc to maintain flat, even contact across the abrasive surface. Follow equipment manufacturer guidelines for disc attachment and pressure settings. Dispose of spent discs according to applicable workplace safety and waste disposal regulations.

Technical Specifications

• Diameter: 5 inches
• Backing Material: 3 mil polyester film
• Abrasive Mineral: Aluminum oxide
• Grade Range: 0.05 to 60.0 microns (7 grades available)
• Weight: 0.01 pounds
• UOM: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000000559