Hi Guys, I have been using the ultima system, and after a few months, I have decided to put some P21S carnumba wax on my 2000 Silverado after the PGP starts to wear off. It is a metallic grey, and I've been trying everyting I can to ge it to "POP". Don't get me wrong, it looks ok, but just trying for the best look I can. It looks rather dull overall. I realize a sealant is different than a wax. Just trying to figure out what works best for me.