I am going to be clearcoating my headlights. Has anyone tried a 2K clearcoat for your headlights. I have Spraymax 2K for paint correction but have read where you need a plastic adhesive coating before you can spray the clear coat on polycarbonate headlights. I am a little unsure of what the final sanding I should do. I communicated with one tech that said I should not go finer then 800grit which seems really rough before spraying the plastic adhesive and I am worried it won`t make the sanding scratches disappear. I would rather go to 1200 to 1500. Are there different coatings with different applications? Share experiences if you have any.