Rday,

  Great question!  Actually, I would use a polish or wax on a part that I really wanted to pop.  For example, on a high reflective black powder coated motorcycle frame that we recently did for the host of a popular TV show (the host will remain anonymous for their own protection LOL.......he was supposed to be somewhere else!)  We coated the frame black, baked it for about 45 minutes and then let it cool.  I went to the Dollar Store and got a bottle of the cheapest car wax they had that was NON ABRASIVE (don't want to scratch up my new coating).  It works like a charm.  Only thing.....boy it sure does show finger prints now!

  Hope that helps and happy coating!

Joey