3M 7010359522 Diamond Lapping Film Disc 4 Inch Psa

Product Description

The 3M 7010359522 is a 4-inch diameter PSA-backed diamond lapping film disc designed for precision finishing of extremely hard materials. Part of the 668X series, it uses precisely graded diamond abrasive particles coated onto a dimensionally stable polyester film backing. The pressure-sensitive adhesive backing allows for fast, secure mounting on compatible backing plates or platens. This disc is suited for applications where consistent, repeatable surface finishes are required at tight tolerances. Licensed technicians and precision machinists working with hard substrates rely on this product for controlled material removal and uniform surface refinement.

This disc is used in lapping and polishing operations across industries that demand fine surface finishes on hard materials such as ceramics, carbide, glass, and optical components. It performs in both automated and manual lapping setups. The 668X series represents the PSA-backed counterpart to the 661X product line, offering the same abrasive performance with the added convenience of adhesive mounting. Available grades in the 668X range span from 0.10 to 30.0 micron, covering rough stock removal through final polishing stages.

Key Features

• PSA backing for secure, tool-free mounting on backing plates
• Precisely graded diamond particles deliver consistent, repeatable finishes
• Fast cut rate increases throughput in production lapping operations
• Produces flat surfaces with low edge rounding
• Uniform finish across the full disc surface
• Extended abrasive life reduces disc change frequency

Compatibility

Designed for use on compatible PSA lapping platens and backing plates that accept 4-inch diameter discs. Suited for lapping and polishing extremely hard materials including ceramics, carbide, glass, and similar substrates across precision finishing applications.

Installation Notes

Installation is performed by precision finishing technicians or machinists. Before mounting, ensure the platen or backing plate surface is clean and free of debris or residual adhesive from previous discs. Peel the liner and press the PSA disc firmly and evenly onto the platen to prevent air pockets. Do not reuse a disc once removed, as the PSA bond degrades on reapplication.

Technical Specifications

• Disc Diameter: 4 inches
• Backing Type: PSA (Pressure-Sensitive Adhesive)
• Abrasive Type: Diamond
• Film Backing Material: Polyester
• Available Grades: 0.10 to 30.0 micron
• Series: 668X
• Unit of Measure: Each
• Package Weight: 0.01 pounds
• Package Length: 7.7 inches
• Package Width: 6.9 inches
• Package Height: 4.7 inches
• UPC: 00051111546987

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010359522