Discolored Tin

[hotdipper]

I am coating copper continuously by dipping in a molten SnAg alloy. The finished product has a tendency to turn a brass color when exposed to hight heat and hunidity. Does any one know of a way to prevent this oxidation from occurring?

 

[EdStainless]

You would need to use a sealant to prevent it. I don't remember exactly, but I believe that some trace elements in your bath will also effect the tinting.

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Corrosion, every where, all the time.
Manage it or it will manage you.

http://www.trent-tube.com/contact/Tech_Assist.cfm

 

[hotdipper]

A sealant would be unacceptable in this application. I would be interested in info on trace additives. Could you possibly steer me towards a source of data?