If it were me, I would switch to an epoxy primer or ar very least a urethane catalized primer. A couple reasons for this. First to avoid any chance of styrene mitigation but the epoxy primer will have less chance to react with the adhesive on your tape. After a few coats of that I would remove the tap and very carefully go over the lines with 1500 grit wet to break the edge a little and then spray a gloss coat of 30% thinned urethane clear. Let that set for 48 hours and then rub out any orange peel. After buffing I would let sit for a week and then wax with Partall #2 at least 8 coats and then mate to your parting flange.