wet sand single stage acrylic urethane
clear coat is a urethane. but like said, different animal sanding/buffing clear than a color urethane.
one thing about it, I can always shoot it again, if I need to. I will have a concrete floor by next fall! still not a spray booth, but I can at least control the air flow in there. if I could keep every bug off too it would be a plus!!! ha....... all I really want is rust repaired, decently straight, sealed good where it doesn't want to rust, and reasonable quality driver finish....!and run like STINK! not a show car, thats just me...