New fiberglass hood: Has anyone ever had success with flat black rattle cans?

I spray canned the "Demon scoop" on my 73 Duster.

Turned out great and looked the same when I sold it as it did the day I did it.

FYI Krylon 'Tough Rust" semi-flat is a dead ringer for the color used on factory Mopar brackets, suspension components and such.