i TRIPLE THAT....bulldog adhesion promote the plastic plus add a cap full in the primer, base, and clear. stuff works awsome...always prep as well, never relay on adhesion promoter alone. scuff degrease etc....if spraying in your garage make sure to mask walls w/ plastic, use lots of light...dont use heat style lamps only florescent so you don't run the chance of blowing yourself up just a precaution...and wet the floor down real good even the driveway... helps keep the dust down.