You'd be better off to use rub-n-buff on the silver portions... trust me on this.
I've yet to get the spray chrome paints looking right, and rub-n-buff is sooooooooo easy to apply. Just follow SEEKERS tutorial video. He uses his hand to apply and buff, as the friction from your bare skin causes the right amount of heat to melt the wax in the rub-n-buff, smoothing it out and giving you a nice even coverage. Once you've rubbed it enough, you can almost get a mirror finish.
If you're worried about getting the rub-n-buff off your hands once you're finished, don't. All you need to do is wash your hands a couple of times with liquid dish soap. It'll remove the rub-n-buff no problems.