Any thoughts on a good way to get rid of the white road grime/corrosion that builds up? Trying to clean it up on the mirror mounts before I spray on some bedliner to dress it up and protect it even more.
I bought a set of very corroded pre-2003 mirrors to be used with mounting brackets when my hard doors are off. I was able to completely remove all traces of the white corrosion by using my 6 inch bench grinder with a brass wire wheel attachment to remove about 99% of it, combined with sand paper to get into the small spaces that the wire wheel wouldn't hit.
I primed the bare metal and painted with satin black spray paint. They have held up for over 10 years now and still look very good. I only have a few stone chips on them today.
Using the powered wire wheel to get them down to bare metal was a huge time saver. It only took about 10 minutes per mirror to completely strip them down to good metal. If you don't have a bench grinder, a wire wheel attached to a drill would do the trick.
This mirror used to be mostly white corrosion. Here is a picture after I finished with them:
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