Nice day here in MI, and Wet Sanding and preparing Parts and Panels for paint.
One day it's 70, next it is in the 30's.
Need a string of 65 deg - 70 deg days w/o rain to throw paint.
Attacked the Rear Dove Tail Spoiler first, it had a good thick coat of Clear and I sanded the crap out of it to ensure there was minimal paint thickness. When there is no shiny Clear Coat showing, you know it is sanded back enough. Carefully sanded around the center Brake Light as I don't see a way to remove it. It must be secured and bonded in place when the Spoiler is made. I'll just tape it off when I paint it.
Any parts to be shot with Primer get sanded with 220 grit. Adhesion Promotor will go on everything first, except maybe the Steel Fenders. Some Trim Parts, like the Front Fascia Grills, will get shot with a Sealer, which is basically thinned out Primer, and does not get sanded.