OK, getting lots of good questions and suggestions from everyone, big thanks! The paint does not appear to be the Plasti-dip variety, at least not the type I have used previously on wheels. As far as the possibility of the wheels being magnesium, according to info on the TRD USA website, they have an image of this style RW wheel and have a pop out that refer to the material as being aluminum. I have attached a picture of the wheels from the CL ad to give you a better idea of what I'm dealing with, but it may be a bit hard to see how bad the paint is. I would call it a 25 footer paint job.
I am thinking that starting with the mildest approach suggested, which is pressure washing, with maybe a focus on areas with some existing paint damage and edges to see if I can get the water under the paint. I remember purposefully stripping all the paint off the hood of a girlfriends Chevy at a car wash back in the 90's when they had all the paint adhesion issues, man that was fun watching big pieces of paint fly off. If that doesn't prove successful, I might try some citrus based products and work my way on up the chart of aggressive solvents laying around my garage, with the methylene chloride based air craft stripper as a last resort. I am hoping that the original finish might be some sort of baked on power coating that would offer more chemical resistant than the solvent carrier based rattle can spray paint. I am think that the blast media will be on my reserve list for the case if the original paint finish is deemed too damaged and a re-coat is in order. Also, in part due to the media blasting being a process I would want to out source. If anyone thinks of anything else, feel free to chime in. I'll update on how it goes.
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