Originally Posted by Larry123
I have “hobby” painted many early Mustangs; I would not jamb the window frame at all. Install your headliner, then the windshield and back glass. Just mask the glass and rubber and scuff around the edges prior to painting. You will not have any lifting issues. Install the trim moldings after you paint.
I disagree Larry123, if you don't put paint down your asking for problems down the road, primer alone will not protect your car from the elements. Primer is porous, catalyzed or not, actual paint has a tighter molecule and will resist moisture much more readily than any primer and the rubber is only a seal for the glass, not that fraction of an inch that is part of the roof panel. If primer was an excellent sealant, we sure wouldn't need to use etch or epoxy primer would we, all we would need is high build and good to go...WRONG.