3M 7000044869 Diamond Lapping Film 0.10 Micron Sheet

Product Description

The 3M 7000044869 is a diamond lapping film sheet used for precision surface finishing on extremely hard materials. It consists of precisely graded diamond abrasive particles coated onto a dimensionally stable polyester film backing. At 0.10 micron grit, this sheet is engineered for ultra-fine finishing and polishing operations where surface consistency and repeatability are critical. Each sheet measures 9 inches x 11 inches and is sold in a minimum quantity of 10 sheets. This product is used by machinists, optical technicians, fiber optic technicians, and precision tooling professionals who require controlled, repeatable surface finishes.

This lapping film is suited for finishing operations on carbide, ceramic, hardened steel, optical components, fiber optic connectors, and other hard or brittle substrates. The 0.10 micron grade places it at the finest end of the available range, making it appropriate for final-stage polishing rather than stock removal. It is commonly used in applications where surface roughness tolerances are measured at the sub-micron level, including fiber optic end-face preparation and precision optical grinding.

Key Features

• 0.10 micron diamond particle grade for ultra-fine surface finishing
• Precisely graded diamond abrasive ensures consistent, repeatable results across multiple passes
• Polyester film backing provides dimensional stability during use
• 9 inches x 11 inches sheet size fits standard lapping fixtures and flat platens
• Suitable for extremely hard materials including carbide, ceramic, and optical substrates

Compatibility

Designed as a precision lapping sheet for use on flat or semi-flat lapping surfaces with extremely hard workpiece materials. No specific equipment compatibility was stated in the product data.

Installation Notes

Lapping film sheets are installed by precision machinists and optical technicians on flat platens, glass plates, or dedicated lapping fixtures. Ensure the backing surface is clean and flat before placing the sheet to avoid uneven abrasion or film buckling. The film can be used wet or dry depending on the application requirements. Inspect the film for wear after each use and replace when particle loading or surface breakdown is evident.

Technical Specifications

• Grit Grade: 0.10 micron
• Sheet Size: 9 inches x 11 inches
• Backing Material: Polyester film
• Abrasive Type: Diamond
• Weight: 0.02 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 10
• UPC: 00051111501429

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044869