3M™ 662XW Diamond Lapping Film Disc

3M 662XW is a diamond lapping film disc for precision polishing of hard materials: ceramics, optical glass, hard metals and composites. It is offered in 6 µm and 0.5 µm.

Specifications

• Mineral: diamond.
• Backing: polyester film.
• Grades: 6 µm and 0.5 µm.

Two grades, two steps

6 µm refines a surface that has already been shaped and removes the scratches of a coarser grade. 0.5 µm is used for finishing, for a very fine polish. Both follow on in the same polishing sequence.

Diamond on film

Diamond cuts where other minerals slide. Deposited on a perfectly flat polyester film, with calibrated particles, it gives an even, repeatable finish. It is the reference abrasive for fibre optic connectors, ceramic ferrules and optical components.

Good practice

Lay the film on a flat, clean platen. Use the lubricant suited to the material. Clean the part, platen and hands between the two grades, and store the films away from dust: a contaminated film scratches instead of polishing.

See also the lapping films 3M 266X, 668X diamond and 661X in sheets, and our micro-abrasive sheets.