I forget that others don't live in the rust belt like I do. If I lived in AZ. and had a 0 rust frame then maybe perhaps I might think about the Eastwood coat or similar. But if there is any chance that there is even a hint of rust inside the frame then I wouldn't want to take a chance and let it keep growing while all tucked in and warm behind a coating. Look what happens if you paint over any rust on a fender. And that is easy to see.