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Coating / Plating exposed to Freon

Can anyone recommend a coating / plating for steel in a freon environment? The parts must withstand 5000 hours in freon at -40 F. Application: Hydrogen fuel cells.

Jack Arnolde
- Chicago, Illinois, USA
2003

I would expect electroless nickel to be fine.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2003

I would think that copper would be the way to go, since air conditioning systems are made with copper piping. Copper is also a very good heat dispersing material.

Dan Brewer
chemical process supplier - Gurnee, Illinois
2003

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