Ok I'm getting surface rust just below the front passenger door on the kickpanel. I put the car in the garage, sand it down to bare metal and remove all of the rust. Then I re-primer the car with two coats, and then use an automotive spraypaint from Autozone to match the color with the rest of the color (faded frost white
) The rust seems to just keep coming back though. Any suggestions on how I can permanently get rid of it?