For those of you working on the frame of your cars, I've found an awesome paint for that purpose. A body man got me started using it. It is called "Chassis Saver" and works awesome. It can be brushed or thinned and sprayed. I brushed my frame with it and it flowed out so nice, you don't see any brush strokes. Here is a video I found explaining it better than I can. Hope this can help someone?