from what I've been told, there isn't much you can do short of repainting

My lower bumper is missing clearcoat as well. It's really bad. There's also a large spot on top of my bumper that has begun to peel. The paint without clearcoat has already faded quite a bit, so I'm just going to have the whole bumper painted. One would think that there would be a way to smooth out the edge where the clearcoat ends, then re-apply some clear. I don't know. It's always a GM vehicle! Oh well, Good Luck with yours!
