Hey guys I was searching for a new product call "new wipe" Im sure you seen the commercial before LOL. "100 CAR WASHES & IT STILL LOOKS NEW !!!"....anyhow I stumbled onto a F150 forum & these members are using Krylon Fusion paint for their exterior plastic with great results. Take a peek !
http://www.f150forum.com/f6/krylon-fusion-paint-58448/
I did a search as well on the site & seems like it lasts pretty long without fading or chipping. May a be a better alternative.