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Whitish colour after electropolish on SS316L

We are doing welding SS316L then polish by very fine grid size abrasive material. Then we do electropolish. This time we saw some of the jobs are getting whitish finish. Why?

Chandu Bhojane
Engineer - Pune
November 29, 2010

It could be the part not clean (possibly a new grit source) or the temperature was not correct or the temp was stratified or the solution is out of spec or is contaminated.

James Watts
- Navarre, Florida
December 1, 2010

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