I've been sanding my ass off trying to get some scratches out of my headlights, but I still have some left. I've been sanding with 320, 400, 600, 1500 grit sandpaper and some 3m rubbing compound that gets 1500+ grit scratches out but I still have some scratches in the headlight. I was wondering, will a clearcoat of spraypaint work to get those out?