3M 7000044729 Diamond Lapping Film Disc 2 Inch Psa

Product Description

The 3M 7000044729 is a 2-inch diameter PSA-backed diamond lapping film disc designed for precision finishing of extremely hard materials. Built on the 668X platform, it uses precisely graded diamond abrasive particles coated onto a durable polyester film substrate. The pressure-sensitive adhesive backing allows fast, secure attachment to compatible backup pads. This disc delivers a consistent, repeatable surface finish across a range of micron grades from 0.10 to 30.0 micron, making it a reliable choice for finishing ceramics, carbide, glass, fiber optic connectors, and other hard substrates.

This lapping disc is used in precision grinding and finishing applications where tight surface finish tolerances are required. Typical applications include fiber optic polishing, hard coating finishing, ceramic component preparation, and tool and die work. The flat cutting action minimizes edge rounding, which is critical for tight-tolerance components. It is used across manufacturing, aerospace maintenance, optical, and advanced fabrication environments where surface consistency and abrasive longevity matter.

Key Features

• PSA backing for fast, secure attachment to standard backup pads
• Precisely graded diamond particles for consistent, repeatable finish
• Flat cutting action produces flat surfaces with low edge rounding
• Available in grades ranging from 0.10 to 30.0 micron
• Long abrasive life reduces disc change frequency and increases throughput
• Polyester film substrate provides dimensional stability during use

Compatibility

Designed for use with PSA-compatible backup pads and precision lapping fixtures suitable for 2-inch diameter abrasive discs. Intended for finishing ceramics, carbide, glass, optical components, and other extremely hard materials requiring tight surface finish control.

Installation Notes

Ensure the backup pad surface is clean, flat, and free of debris before applying the PSA disc. Press the disc firmly onto the backup pad to achieve full adhesive contact before beginning the lapping operation. Wear appropriate eye protection and follow your facility safety protocols when working with diamond abrasives on hard substrate materials.

Technical Specifications

• Diameter: 2 inches
• Backing Type: PSA (Pressure Sensitive Adhesive)
• Abrasive Material: Diamond
• Substrate: Polyester Film
• Grade Range: 0.10 to 30.0 micron
• Unit of Measure: Each
• Weight: 0.01 pounds
• Package Length: 7.71 inches
• Package Width: 6.88 inches
• Package Height: 4.7 inches

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044729