I was doing some searches on here concerning overspray when painting. Cat is getting ready to be primed. My current plan is red oxide all over the bottom but after searching seams a lot of people are saying that 1968 dearborn cars were not red oxide on the bottom but semi-gloss black? I know the car was primed with red oxide that was obvious during dis-assembly, I did not see any red oxide on the bottom though. The car had been sprayed with a rattle can to clean it up for pictures. I did try and take some paint off and not really sure I saw red under it either? What do you guys say?