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Abrasives for Electronics Finishing

LC-UPC (1.25mm) - Domaille Polisher


LC-UPC 1.25mm

Connector Type: LC-UPC (1.25mm)
Polishing Machine: Domaille

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

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PDF 3M Fiber Optic Polishing
(PDF 883 KB)

Recommended Sequence

3M™ Lapping Film
Step Micron Grade Color Mineral Product I.D.*
Denub 5 Gray Silicon Carbide 461X
Step 1
Remove Epoxy
3 Pink Diamond or Silicon Carbide 661X or 463X
Gray
Step 2 1 Purple Diamond 661X
Step 3 - White Final Polish 863X

* All abrasive discs are available with PSA (self-adhesive) backing.


Recommended Sequence - Option 2

3M™ Lapping Film
Step Micron Grade Color Mineral Product I.D.*
Denub 15 Gray Silicon Carbide 461X
Step 1
Remove Epoxy
3 Pink Diamond 661X
Step 2 1 Purple Diamond 661X
Step 3
(Repeat Step 2)
1 Purple Diamond 661X
Step 4 - White Final Polish 863X

* All abrasive discs are available with PSA (self-adhesive) backing.


Troubleshooting
Problem Possible Solution
Fiber height too high 1. Increase polishing time.
2. Decrease speed.
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.

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