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Bright Dip for Zinc-Nickel Alloy to thin down the plating

April 9, 2014

Q. Is there a solution for bright dipping zinc-nickel plated parts (steel base metal) to reduce their thickness? After the bright dip, we would apply a conversion coating (trivalent chromate coating).

We have a tight tolerance range and cannot hold the tolerances prior to plating. We used to do this with cadmium using chromic acid.

Karen Gibbs
- Mount Prospect, Illinois, USA

adv.
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