3M 7010298834 Diamond Lapping Film 668X 30.0 Micron Psa

Product Description

The 3M 7010298834 is a pressure-sensitive adhesive (PSA) diamond lapping film designed for precision finishing of extremely hard materials. Part of the 668X series, it features precisely graded diamond particles coated on a durable polyester film backing. At a 30.0 micron grade, this sheet delivers a consistent, repeatable surface finish suited for tight-tolerance lapping and polishing operations. Each sheet measures 3 inches x 8 inches and is sold individually. It is the PSA-backed counterpart to the 661X product line, allowing secure mounting to flat or backing-plate surfaces without additional adhesive.

This lapping film is used in precision machining, tooling, and finishing applications where surface geometry and finish consistency are critical. It is well suited for lapping optical components, ceramic surfaces, carbide tooling, and other hard substrates. The PSA backing makes it practical for use on flat lapping fixtures and hand-held backing pads. Technicians and machinists working in tight-tolerance environments rely on this film for final-stage material removal and surface conditioning.

Key Features

• Precisely graded diamond abrasive particles for consistent, repeatable finish quality
• 30.0 micron grade suitable for intermediate to fine lapping of hard materials
• PSA backing allows direct adhesive mounting to flat lapping plates or backing pads
• Polyester film substrate provides dimensional stability during use
• 3 inches x 8 inches sheet format for versatile fixture compatibility

Compatibility

Designed as an OEM-style replacement and equivalent to the 3M 661X diamond lapping film in PSA-backed format. Suitable for use on flat lapping fixtures, glass plates, and rigid backing pads where PSA-mounted abrasive sheets are specified.

Installation Notes

Installation is performed by qualified machinists or precision technicians. Before applying, ensure the lapping plate or backing surface is clean, dry, and free of debris that could cause uneven adhesion or film distortion. Peel the PSA liner and apply the film smoothly to avoid air bubbles. Do not reuse the sheet once removed, as the PSA bond and abrasive surface may be compromised.

Technical Specifications

• Grade: 30.0 micron
• Sheet Size: 3 inches x 8 inches
• Backing Type: Pressure-Sensitive Adhesive (PSA) polyester film
• Abrasive Type: Diamond
• Weight: 0.02 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 25
• UPC: 00051111560310

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010298834