3M™ Diamond Lapping Film Disc 668X

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PSA-backed

Most widely used diamond lapping film

Fast cut, increased throughput

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PDF (1) Copy 26Tech Data Sheet (PDF, 133KB)
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Details

Highlights
  • PSA-backed
  • Most widely used diamond lapping film
  • Fast cut, increased throughput
  • Flat surfaces and low edge rounding
  • Uniform finish
  • Long abrasive life minimizes abrasive changes
  • Available in rolls, discs and sheets

3M™ Diamond Lapping Film 668X is a PSA version of 661X product. Precisely graded diamond particles coated on a polyester film. Provides a consistent, repeatable finish on extremely hard materials. Available in many grades between 0.10 and 30.0 micron.

Standard Lead Time: 12 Calendar Days

Typical properties

Abrasive Material

Diamond

Application

Superfinishing, Flat Lapping, Polishing

Attachment Type

PSA Back

Backing Material

Polyester Film

Backing Thickness (Imperial)

3 mil

Backing Thickness (Metric)

0.076 mm

Center Hole Diameter (Imperial)

1.25 in

Center Hole Diameter (Metric)

31.75 mm

Micron Grade

0.1 μm, 0.5 μm, 1 μm, 3 μm, 6 μm, 9 μm, 15 μm, 30 μm

Polishing Process

Step 1b: Cut Angle, Step 1: De-Nub/Epoxy Removal, Step 2b: Refine/Level Connector (Ceramic Connector)

Product Color

Purple, White, Orange, Green, Brown, Blue

Product Form

Disc

Product Series

668X

Product Usage

Fiber Optic Connectors

Substrate

Carbide, Ceramic, Composite, Exotic Alloy, Hardened Metal, Glass, Stone

Overall Diameter (Imperial)

2 in, 4 in, 5 in, 8 in, 12 in

Overall Diameter (Metric)

50.8 mm, 101.6 mm, 127 mm, 203.2 mm, 304.8 mm

Resources

Product Disclaimer
  • The technical information and data shown on this page should be considered representative or typical only and should not be used for specification purposes.
  • 3M products shown on this website may not be available in all geographic regions or may not be available at this time. Please contact your local sales representative to determine product availability.