Using the armor all shield on my wifes matt black rims / Wheels. Check out the film for more information on how to fail misserably in improvning the looks of her Wheels. DONT use armor all shield on your rims or Wheels.......
+S.D.Photography yes cleaning the rim first must be prio 1 since otherwise you just trap the dirt inside the compund. after a few days mine didnt look so bad anymore and the effect made them much easier to wash for a couple of weeks atleast. i only used about 1 can for about 12 rims so you dont need 2 cans per 4. Ps good luck with yours and tell me what brand you choose in the end ds