My car door got a hit i guess from another door. There is a small dime size dent. In the dent there is a small scuff or paint abrasion don't know for sure. The car is black and the mark is white in color. I have no polisher, want to know if a silicon product like color magic would work in removing the white mark? If the mark is a scuff in the paint should i retouch it with a paint pen or leave it to rust?