When applying paint, it is important to spray thin coats and keep it even. The paint that I was using was really nice, and went on very smoothly. I ended up spraying three coats of primer, waiting about two minutes between each coat for it to tack up. I let that sit all night and sprayed the paint in the morning. I had to spray the paint on even thinner, because it really wanted to run and sag. I ended up having five coats of paint on top of the primer. That gave me a nice color and a nice finish. I let it set at least 24 hours before I pulled off the tape.
The paint turned out pretty well, and it just looked like little patches over the old rust. The color wasn't quite the same as the old, but it was pretty close. It also had no clear coat on it, so it had a little different finish. I didn't bother buffing the edge of the paint so that it blended with the old paint.