3M 7100020930 Diamond Lapping Film 15.0 Micron 4x150ft

Product Description

The 3M 7100020930 is a diamond lapping film designed for precision surface finishing on extremely hard materials. Precisely graded diamond abrasive particles are coated onto a dimensionally stable polyester film backing, delivering a consistent and repeatable finish across the full length of the roll. This product is rated at 15.0 micron particle size and is supplied as a continuous roll measuring 4 inches wide by 150 feet long, wound on a 3-inch core. It is used primarily by precision tooling technicians, fiber optic technicians, and metrology professionals who require tight surface finish tolerances.

This lapping film is suited for applications requiring controlled material removal on hardened metals, ceramics, carbide, glass, and optical components. The 15.0 micron grade positions it in the mid-range of the 3M Diamond Lapping Film series, which spans from 0.10 to 30.0 micron. It is appropriate for initial stock removal or intermediate finishing passes before progressing to finer grades. The roll format supports both machine-fed and hand-lapping setups in production and field service environments.

Key Features

• 15.0 micron precisely graded diamond abrasive for controlled, repeatable stock removal
• Polyester film backing provides dimensional stability and consistent particle presentation
• Roll format: 4 inches wide by 150 feet long on a 3-inch core
• Effective on extremely hard substrates including carbide, ceramic, glass, and hardened steel
• Part of a multi-grade series ranging from 0.10 to 30.0 micron for progressive finishing sequences

Compatibility

Designed for use on extremely hard materials including carbide, ceramic, glass, and optical components in precision lapping, polishing, and surface finishing applications where controlled micron-level abrasion is required.

Installation Notes

This film is typically installed and used by precision tooling technicians or fiber optic technicians following equipment manufacturer guidelines for lapping fixtures or polishing machines. Ensure the work surface and backing plate are clean and free of debris before applying the film to avoid scratching or uneven abrasion. Progress through grades from coarser to finer micron ratings in sequence to achieve the target surface finish. Inspect the film for wear or loading regularly and replace as needed to maintain finish consistency.

Technical Specifications

• Particle Size: 15.0 micron
• Width: 4 inches
• Length: 150 feet
• Core Size: 3 inches
• Backing Material: Polyester film
• Abrasive Type: Diamond
• Unit of Measure: Roll
• Weight: 4 pounds
• UPC: 00051111500446

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100020930