[callmej75]

I just got done with some alloys. All I did was wire wheel the whole rim because the guy was wanting a satin black on them. I properly pretreated them with aluminum chromate and powder coated. I had to lay the rim flat on my rack and ground my gun to the backside of it to establish a good ground so it didn't faraday badly. Also it might help to heat the rim up to around 150* and shooting it to reduce faraday. It takes alot of time to heat the rim up due to the aluminum loves the heat and soaks it up. Thats my experience...