i wanna know what they use in the dealership or this one place that did my undercoat.
everytime i used to go to the dealer with "clean rims" they clean them even better the stuff i could never get off.
or my winter wheels were sitting in my basement the whole year and still had a layer of brake dust on them. when i put them on and washed the wheels i couldnt get the stuff off anymore. then i did the undercoat at some place and they got the wheels like new. but i forgot to ask what they used there