Letter 38068

Rhodium plating on Stainless Steel [Hong Kong] 

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We are currently launching a product which is stainless steel with rhodium plating. However, we found that the plating is not so resistive as we expected. We tested for abrasion 48 hours, all the plating removed.
The spec for the plating is 20 microns rhodium on stainless steel. It seems it's thick enough. Can the situation be improved based on our spec?

Angel Tam
Quality Engineer - Hong Kong

You need to give details of your process before anyone can suggest improvements. The Internet isn't very good at telepathy!

Trevor Crichton R&D practical scientist - UK

It sounds like you have a highly stress rhodium deposit and adhesion issue with stainless steel. You need to resolve this issue.

HSolidum
- Philadelphia, Pa, USA

I think the problem we have should be directly plated rhodium on top of stainless steel. As I have read some of the articles, there should be copper or nickel plated on top of stainless steel before rhodium. But we need to fulfill the requirement of nickel free. Is there any alternative?

Angel Tam
- Hong Kong

Hello, Angel. Search our site with terms like "white bronze" and "alballoy" to learn more about nickel-free "white metal" plating. Good luck.

 
Ted Mooney, P.E.
finishing.com Inc. - Brick, NJ

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.