Hi Paul,
I have not had any experience with the Brodak candy colors. Those I have seen others use have all faded.
I did use House of Kolors automotive lacquer Candy paint. It was great, never faded, and is no longer available!
If you want to try true Candy colors, Duplicolor has a lacquer based system call "Metal Cast". It is meant to mimic anodized aluminum. On my Tomahawk I used the gold base and Red over coat. It works just like true Candy lacquer from days gone by. And you can overcoat with clear dope, or urethane 2 part.
Remember, Candy paint is the hardest paint to use. You must really be careful of not "streaking" the color. A little practice and it will all be OK.
BIG Bear
RNMM/AMM