You must give more information. What are you plating onto?
Do you want a high shine or good wear resistance? (Matt finish)
Chromate is dangerous do have the chemical knowledge to work with strong acids?
I despair of giving out knowledge to people who will get hurt or damage others all because the can't be bothered to learn for them selves.
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There's them that knows and them that just thinks they know, whitch are you? Stir the pot and see what rises up. I have catalytic properties I get a reaction going.