Hey guys, When I got a new tailgate and had the interior side of it sprayed with Line-X to match the rest of the 5 month old Line-x'd bed, I noticed that the colors were off. The color difference is no big deal to me, but I'm wondering: Do you guys have any tips or tricks for keeping that nice, shiny, new spray-in bedliner finish looking nice, shiny, and new? When it's a brand new job, it's a beautiful jet black in color. Over time, though, it almost starts to turn gray and dull. Is there any way to prevent that?