I'd say it would work for any rims that are some kind of alloy. I'm not even sure if my rims are aluminum or magnesium, but it definitely worked great.
When I do the rest of them, I'll spend a little more up-front time sanding and I'll find some higher grit sand paper, like 2000 grit, so the end work doesn't take so long. Two thirds of the time I spent was buffing!
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