Re: What do the pros do? Rust repair.
Personally, I try to get into the area and try to mitigate it best I can. That method may be epoxy or a converter type of spray. I am pretty fond of the Eastwood for the converter stuff, but use a good 2K epoxy when I can get to the area. I don't plan on running the thing down the freshly salted roads, but different areas of the country do tend to rust from inside out, so something is better than nothing. As for the high end shops, my guess is they don't do small patches and just do panel replacement, which does expose a large area that can be treated. Plus a replacement panel is easier to prep than a welded patch.
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