Patinas for Steel

Dear Charles,

I have been seeking help in the form of techniques of patination of
steel. People in CMAG here in Portland Oregon gave me your name and E-mail
address suggesting that you could help me.

I make ouatdoor sculpture in steel and am looking for some way of surface
treatment that will stand up to weathering.

Any help you can give me will be greatly appreciated!!!

Thank you

Paul Jenkins (FeO2Rhino@AOL.com)