Hey Guys
Right now I am painting my hole car.
I am using Rustoleum Professional thinned with mineral spirits. And so far so good. The adhesion of the paint is good. I almost can't scratch the paint and I did my second coat this morning. I am painting over Base Coat and Clear Coat without even sanding except for making the surface smooth (the clear coat of my car it is peeling off). I am just using a scratch pad with soapy water and then, when it is dry, cleaning with rag and acetone.
The Rustoleum professional dries in 2 or 3 hours, at least here in Florida with 80 Fahrenheit.
Do not use acetone, doesn't work. Acetone dries to quickly. There is no time for the paint to "self level", and the coat turns out too thick
Good luck to all of you!
I will keep you updated