Letter 37046

Documentation needed on suitability of zinc plating and chromating [Pennsylvania] 

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We are working with a company that is designing a new valve. They have asked us some technical questions that we "know" the answer to but need some technical support to verify- such as a journal, paper or publication that could substantiate our answers.
We need documentation on the Paint-ability of Chromates.
Any information - as in a chart - that demonstrates the durability of zinc plated steel vs. Stainless Steel
Any chart or list of media that could be passed through a valve that WON'T CAUSE the zinc plate to fail
And, finally...
A reference that would indicate the normal amount of attrition (corrosion or wear) of zinc plate per year under "normal" interior circumstances.

Robin Scheppner
plating and galvanizing shop - Erie, PA, USA

I want to answer or follow-up on this subject publicly (in non-commercial fashion).

 

My company is a supporting advertiser at finishing.com and we want the contact information to reach the inquirer privately.

 

I want to post a new question or inquiry of my own on a different subject.