anodizing works in the long run, if you clearcoat it afterwards. Dont know for sure if you can "fat/oil/lacuer" masks during the anodizing process, I know for a fact you can do that on smaller parts. And see no reason why you couldnt on larger objects, such as a rim.
I would call a place who do this, and ask.
But one advantage anodizing have over powdercoating, not matter what, is weight, powder is heavier than molecules.
It intriqued me, so I called myself.
Industrial Coating & Plating here in Phoenix.
No problem what so ever to mask of things, or portions of the metal to be anodized.
Pricing for full anodizing of 4 rims, was roughly 200 dollars.
Phone Number is #(602) 278-7675 ask for Tommy.
Powdercoating is generally much better asthetically than anodizing due to the thickness, but the anodizing is much stronger, anyone who has ever tried to drill an anodized part will tell you, its basically ceramic, albeit .001" thick.
well I was told it would be to hard to just powdercoat the lip, and it would look bad where the lip met the rest of the wheel...plus it would look weird i would think with part of the wheel powdercoated and the other part anodized from advan..hmmm, i want to get my valve cover and ic pipes done at least, so maybe ill start there.