Okay, so I've just finished spraying some thinned epoxy as a sealer over some urethane parts, and it just came to me that I forgot to spray on the adhesion promoter over the repairs. I was repairing some cracks, so the entire bumper wasn't stripped to the plastic, just around the repair areas (about the size of gallon paint can lid) - the rest I scuffed with a red scotchbrite - so, the question: should I sand it back down around the repairs, and redo it with the adhesion promoter or is it alright to move forward?
