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Originally Posted by alanworland
Unless things have changed I thought a zinc plated finish could either have a clear or coloured passivated finish applied?
Might be worth asking a platers. Alan
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A couple of moments on Google reveals that zinc platers do indeed use the term "passivation" to describe the addition of a chromate layer on top of the zinc layer.
The terminology is a bit loose; a more formal description of passivation is as per Wiki
https://en.wikipedia.org/wiki/Passivation_(chemistry) but we start to get in to splitting hairs over passivation and inhibition.
For an object which lives in a environment which is not very corrosive, I think you'd expect standard zinc coating to be satisfactory.
B