3M 7100028248 Diamond Lapping Film 1.0 Micron Sheet

Product Description

The 3M 7100028248 is a diamond lapping film sheet engineered 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, repeatable finish across each pass. At 1.0 micron particle size, this sheet is suited for fine finishing stages where surface uniformity is critical. The 8.50 inch x 8.50 inch format accommodates a range of lapping fixtures and flat-lapping setups. Technicians and machinists working with carbide tooling, ceramics, optical components, fiber optic connectors, and similarly hard substrates rely on this product for controlled material removal at the finishing stage.

This lapping film is used in applications requiring tight surface finish tolerances on hard substrates, including fiber optic termination polishing, precision tooling reconditioning, and ceramic or glass component finishing. The 1.0 micron grade positions it as a fine-stage abrasive within a multi-step lapping sequence. It is sold individually and is suitable for both bench lapping and fixture-guided lapping operations in precision manufacturing, maintenance, and calibration environments.

Key Features

• 1.0 micron precisely graded diamond abrasive particles for fine finishing
• Polyester film backing provides dimensional stability during lapping
• 8.50 inch x 8.50 inch sheet size fits a wide range of lapping fixtures
• Delivers consistent, repeatable surface finish on extremely hard materials
• Available as part of a broader grade range from 0.10 to 30.0 micron for multi-step sequences

Compatibility

Designed for use on extremely hard materials including carbide, ceramics, optical glass, and fiber optic ferrules where precision surface finishing is required.

Installation Notes

Diamond lapping films are typically used by precision machinists, optical technicians, and fiber optic technicians. Ensure the lapping surface and workpiece are clean and free of debris before use to prevent scratching or uneven material removal. Use appropriate lapping fluid or follow dry-lapping guidelines as specified for the application. Progress through abrasive grades in sequence from coarser to finer for best results.

Technical Specifications

• Particle Size: 1.0 micron
• Sheet Size: 8.50 inches x 8.50 inches
• Backing Material: Polyester film
• Abrasive Type: Diamond
• Weight: 0.02 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 10

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100028248