Ok I got my 2013 Santa Fe sport 2-3 weeks ago. I noticed while detailing it I have lots of rust dots on the chrome trim around the windows. I googled it and found out about rail dust. So I wanted to ask is clay bar the best for removing it from the chrome trim? What about CarPro Iron X Iron Remover? Should I try the clay bar first and it that does not work then try the Carp Iron X? How did you guys remove rail dust? This is the first car I have bought with this issue. Thanks.