Plasti-Dip, unless it's changed in recent years, is pretty much "junk". It was originally designed to dip the handles of tools in to get that nice rubbery plastic grip on them, like some of the nicer tools have from the factory. I dipped two pairs of pliers in that junk as per the directions. Several coats. The first time I got oil anywhere around the new handles (as in... "I used the tools for what they were designed for" :lol: ), they turned to a slimy mess that got black residue all over my hands. I couldn't grip them at all and ended up pulling it off of both pairs.
You couldn't get me to use that stuff on my tools ever again, much less "wheels, bumpers, etc..."
Just my opinion, but I'd steer clear of the stuff. I'm suprised it's still on the market, as I've never had anyone I know talk good about the stuff.
All the best,
Glenn