Dust can settle in the paint or primer because it dries. For the smoothest last coat, sand among coats of primer or paint with 220-grit sandpaper or an extra-great sanding sponge. Then vacuum and tack as regular right before recoating. Get rid of doorknob and lock system through the door. http://paint-cabinets-charlotte01100.collectblogs.com/19806271/how-to-prep-my-cabinets-for-painting-fundamentals-explained