This Eastwood 2K Aerospray is a really great product.  It's expensive (like $35 for a rattle can), and once you activate it you are only good for 48 hours.  But man...what a nice finish, and super durable--that's the main thing.  I refreshed the alloy wheels on my Toyota Highlander with the silver version of this stuff; and then I thought about my never ending quest to restore a factory finish on my Vanagon Door Handles.  I've tried normal Satin Black rattle can, like the stuff I use on Front Grills and floppy Mirrors and Rear Intake Vents and that works great....but on the door handles, invariably I don't get long lasting results.  Powdercoating of handles of course is an option, but I worry about the high heat in the baking process and how it might gum up lock lubricants inside; and it's not cheap either.  Anyway, I bought a can of the Satin Black stuff on Amazon after being super impressed with how the silver stuff worked on my wheels.  All of this is in anticipation of finally getting my Vanagon back after T-Bone collision last April.  (I've got a junk roller Donor Van lined up, and also a replacement passenger door.)