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Black traces on electropolished parts at jigging area

Q. In electropolishing,black traces are present at the jig holding area of the metal and polish is not perfect at that area. I can't able to do perfect finish. Can anyone help me resolve the issue.

Jagadeesan Sankaran
- Chennai, Tamilnadu, India
December 21, 2011

Most probably, your electropolishing solution is contaminated.
Try replacing it with a fresh one.

Kishore Phadnis
- Mumbai, Maha. India
January 18, 2012

You could try one of 2 things: put movement on the rack or change the position of the contact area half way through the process

Alan Tobin
- Ireland
January 31, 2012

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