A few seem to be confusing the earlier clearcoated alloys with the later chrome plated alloys, big difference. To powdercoat the chromed alloys, the chrome has to be acid stripped first to ensure a long lasting finish. If the chrome peels, the powdercoat is peeling with it. The clearcoat alloys can be bead-blasted and then powdercoated. To remove rust stains and oxidation from your chromed rims, use a product called "Lime Out" (available from any hardware store, Walmart, Target, etc.) mixed 50/50 with water applied with a hand held spray bottle (an old windex bottle works great). Spray it on the wheels when they are cool and dry, completely wetting the surface and keep them wetted down with the solution for about ten minutes; it will dissolve the rust and oxidation. You can go an extra step and then wipe them down with a clean, soft rag wetted with Lime Out full strength. Be sure to wear rubber gloves as the acid in the solution will also strip all the oils out of your skin; it won't do serious harm but your skin won't like it! Once you've wiped away all the stains, rinse the rims with plenty of water and admire your sparkly clean rims. I know this works really well 'cuz I've used it on everything chrome in need of a good cleaning!