There is a guy in Cullman, AL that does this and there is a metal fab shop right next door. He said he would come out to my house and give me a bid. He also does powder coating. He said that he puts a chemical on the surface, like Kevin mentioned, that keeps it from rusting and he has seen trucks go for a year with no visible signs of rust. I have absolutely no proof, but that is what he said.
I sure would like to know what others have experienced with this additive.
Thanks for the thread Ron.
Phillip