The Wolfgang exterior trim sealant is outstanding on my roll-x and all the plastic trim on the truck.
I thought I'd use the Adams sealant on my venom once I get it. 303 might be another good option to prevent fading; just not sure how well it would hold up on exterior parts like that.
---------- Post added at 05:50 PM ---------- Previous post was at 05:33 PM ----------
Ok, just read the product description on my Wolfgang sealant. I had gotten it for the roll-x mostly, but there's no reason to not use it on metal. It even has rust inhibitors. It seems to be an excellent product.