3M 7000000325 Lapping Film 261X 12.0 Micron 4x150 Ft Roll

Product Description

The 3M 7000000325 is a precision lapping film roll from the 261X series, designed for controlled surface finishing and polishing on a wide range of substrates. It features precisely graded aluminum oxide abrasive particles coated on a 3 mil polyester film backing, delivering consistent, repeatable finishes in tight-tolerance applications. The roll measures 4 inches wide by 150 feet long and mounts on a 3 inch ASO keyed core for use with compatible dispensing equipment. The abrasive grade is 12.0 micron, suitable for intermediate to fine finishing work. Installed by precision machinists, optical technicians, and surface finishing specialists, this film is a direct fit for production and bench finishing setups.

This lapping film roll is used in applications requiring uniform surface finishes on metals, ceramics, glass, fiber optics, and composite substrates. The 12.0 micron grade positions it in the intermediate finishing range, appropriate for stock removal followed by finer polishing stages. The 3 mil polyester backing provides dimensional stability and resistance to tearing during continuous feed operations. The ASO keyed core format makes it compatible with automated and semi-automated lapping and polishing equipment designed for keyed roll stock. It is well suited for both production-line environments and precision bench work.

Key Features

• Precisely graded 12.0 micron aluminum oxide abrasive particles for consistent cut and finish
• 3 mil polyester film backing provides stability and tear resistance during operation
• 4 inch wide by 150 foot roll length for extended production runs
• 3 inch ASO keyed core for secure mounting in compatible dispensing and lapping equipment
• Uniform particle distribution delivers repeatable finishes across a range of substrate materials
• Available in multiple micron grades (0.30, 3.0, 5.0, 9.0, 12.0, and 30.0 micron) for full finishing sequences

Compatibility

Designed for use with lapping and polishing equipment that accepts 3 inch ASO keyed core roll stock in a 4 inch width format. Suitable for finishing metals, ceramics, glass, fiber optic connectors, and composite substrates.

Installation Notes

Loading and threading of lapping film rolls should be performed by qualified technicians familiar with the specific lapping or polishing equipment in use. Ensure the machine is powered down and all moving components are at rest before mounting or removing the roll. Handle the film surface carefully to avoid contaminating the abrasive coating with oils or debris. Follow the equipment manufacturer's guidelines for core seating and film tension to maintain consistent finish quality.

Technical Specifications

• Series: 261X
• Abrasive Material: Aluminum Oxide
• Micron Grade: 12.0 micron
• Film Backing Thickness: 3 mil polyester
• Roll Width: 4 inches
• Roll Length: 150 feet
• Core Size: 3 inches
• Core Type: ASO Keyed
• Unit of Measure: Roll
• Minimum Order Quantity: 4
• Weight: 2.13 pounds
• UPC: 00051144140916

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000000325