Blasting is a good way to go. I used some chemical treatment on my truck but applied it by hand and made sure it was thoroughly washed off when done. I think I would agree that dipping might not be the best way to go.
1953 Chevrolet 3600 Fried Green T'mater (Vern) In the Stovebolt Gallery Caution: Political Statement Man who runs in front of car gets tired, man who runs behind car gets exhausted.