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Alternate to Zinc - Yellow Chromate

Alternate to Zinc - Yellow Chromate

Alternate to Zinc - Yellow Chromate

(OP)
I have a mild steel part that I need to plate for corrosion protection.

In the past I would have gone for zinc plating with yellow chromate.  Nowadays however, chromium is viewed as uncouth.

So, suggestions for alternates?  

RE: Alternate to Zinc - Yellow Chromate

Lots of options, depending upon the application & requirements.  E.g.,
Electroless nickel,
Co-Sn electroplating,
Trivalent Cr passivation of the zinc plating,
Lacquer over zinc,
Powder coating.

Some suggestions for passing 1000 hours of salt spray testing are at http://www.finishing.com/384/36.shtml
You can also search other answers at this site, and get links to metal finishing chemical suppliers.

RE: Alternate to Zinc - Yellow Chromate

Depending on the part you could even galvanize some parts. Costs less and gives better protection.

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