Hi,
instead of polishing (by hand) I had contact to the newest chrome coating.
There are some companies advertising a new process for mirror like chrome coat. But only for showcars without road contact. The available clearcoat is yet too weak to prevent from damages which in combination with water cause a black increasing spot. (At least here in Europe).
Everybody is waiting but they asked me to wait some more months.
Any experiences with this in the US?

Tom (dreaming of chrome wheels for my SD)