I have been disassembling my 87 Formula for new paint and was wondering how to clean and repaint things like the bumpers. After removing the fascias and bumpers, I have some surface rust around the welded parts of the bumper which I feel should be removed to keep the pieces from further deterioration even those these parts are completely invisible after the fascias are replaced.
Are there any good methods to prep the areas of the bumper that are hidden? Of course, the factory dipped the whole bodies to coat them and this won’t work in the average garage. I plan on blasting the paint and rust off the exposed areas before prining.