another trick if you like a natural look is use a bonding clear "BullDog" being the cheapest and easyest to find,at-AutoZone-, Sand the metal and use the bonding clear, very thin coat, then clear coat. You can use this in many ways. You could paint the head black then sand the fins leaving just the edges exposed like many harleys do, the options are endless. The main thing with any painting is get it clean and oil free. Also must be over 65 degrees to paint.