I goofed up a while ago in a parking garage and very lightly scraped the passenger side of my front bumper on a concrete pole while backing out, avoiding my neighbor who was over the line. I do not have much experience with a buffer, but I have borrowed one and have not attempted to take it out yet. What kind of product do I need to use to try and polish out this rash before taking it to a shop? I can provide a photo if necessary, but wanted to ask in advance. Thanks for the help!