As you can see in the picture above, I want to paint the section between the exhaust pipes of my Saleen rear fascia black. It's all white right now, and I bought 400grit sandpaper and Ford black paint (spray kind).
I am unsure of what to do. Do I need to sand the section completely until all the white paint is off? Or do I just need to sand it a little? After sanding, do I just push the spray can trigger lightly until I coat everything? How many coats do you think I need to make it nice?
Am I missing anything besides the sanding and painting (besides clear coat which I plan to do after)?