Often, once the primer is applied, you will notice some sort of defect (pinholes or a low spot) that was not addressed before priming. Such defects can be filled with QuickFair. Lightly sand the primer with 150 grit sandpaper and clean well. Apply the QuickFair with a flexible spatula. Once sufficiently cured, sand and feather out the edges. Clean the area well and then apply the Pennant Primer. If full hide is achieved, then no additional coats of Pennant Primer are necessary.