You will need to roll on enough to sand it smooth. Then roll on some more and sand it smooth. From what I read about, you can't just keep adding paint with out smoothing it out as you go. I have sprayed Rustoleum on trailers with great success. A little thinner and you are good to go. If it runs, sand it out and go again. Joe

Last edited by Joe H; 03/08/2009 7:07 PM.