Yeah but only after I go through an 80 grit smoothing. Then I guide coat it with 120 and the longest sanding block I can use. The trick is to get the filler as transparent as possible without touching the metal before you guide coat. When I get it really smooth I will spray a thick coat of high build primer to make sure all the waves are out and sand it with 180. With dark colors like I have here I will wet sand it and sight along the wet panels to detect any ripples. This one is going to be HOK Burple.