Skip to Site Navigation Skip to Site Navigation Skip to Main Content All 3M.com Site Map
Abrasives for Electronics Finishing

APC (2.5mm) - Nanometer Polisher


APC 2.5 mm Connector

Connector Type: APC (2.5mm)
Polishing Machine: Nanometer

3M Technical Service Engineers recommend using the following sequences for polishing APC connectors using a Nanometer polishing machine. These sequences provide typical starting points. Your actual process may vary depending on your polishing equipment and requirements.

< Back


PDF 3M Fiber Optic Polishing
(PDF 883 KB)

Recommended Sequence

3M™ Lapping Film or Polishing Film
Step Micron Grade Color Mineral Product I.D.*
Denub 15 Gray Silicon Carbide 461X
Step 1
Form Angle/
Remove Epoxy**
15 Gray Silicon Carbide 461X
Step 2 6 Brown Diamond 661X
Step 3 3 Pink Diamond 661X
Step 4 1 Purple Diamond 661X
Step 5 - White Final Polish 863X

* All abrasive discs are available with PSA (self-adhesive) backing.
** Form Angle/Remove Epoxy step can be done with a 3M™ Diamond Metal Bond Disc, 9 micron.


Troubleshooting
Problem Possible Solution
Fiber height too high 1. Increase polishing time.
Connector has too many visual defects 1. Increase polishing time.
2. Use harder back up pad.
3. Use 863XW instead of 863X for final polishing step.

Polishing Tips:

  • Use deionized water as a lubricant.
  • Adjust machine pressure to accommodate for the number of connectors in your fixture.
  • If you have questions, call the 3M Fiber Optics Development Laboratory at 1-866-866-0922.

< Back