No experience with the turquoise; but I like the Hemi orange. Add reducer and their hardener, spray with a gun. The hardener increases gloss according to their literature. With the hardener, it's as durable as BC/CC, spray it with brake cleaner, lawyer thinner, etc and it wipes off as clean and shiny as the day it was sprayed.

Just don't spray it too thick, and make sure all oil and grease is out of the pores of the casting. I have a problem of not wanting to be wasteful, and spraying everything I mixed up. One engine got too thick and when replacing the water pump, the paint chipped and lifted