Tommy, when you wetsand, you'll need to get ALL orange peel and shine off of it. You'll need about 1500 (maybe even start with 1000 grit). Keep in mind, the more orange peel you put into the paint, the more you will need to wetsand. If you have a lot of peel, then of course you'll be removing a lot of the paint. So the slicker you put on the paint, the better.
Then when you buff. You will have to use a machine buffer and a good grade compound (not polish). You'll see this will bring back the shine. Hand polishing will not do it.
Rustoleum, though it is 'paint' is not the best for automotive use since it's considered a topcoat or final coat and it has no hardener.
Granted today's basecoats don't have any hardeners in them either, but these are intended to have a catalyzed clearcoat over the top of the base.
@Scapegoat, Actually, the forum he posted it in is "General Auto/Motorcycle Painting" which really just has to do with 'painting' (not what type paints you use).
There is a 'custom painting' forum on this site though.
The site name is "Custom Paint Forum" (no s).
Just like when you go to an Airbrush forum. You'd expect all posts to be about airbrushing, but I've seen general painting, bodywork, pinstriping posts on "airbrush" forums.
Or like Home Depot, well...You would think by their name, they would sell homes. They don't sell "homes". They just sell materials that can be used around the home.