Generally speaking, the best spray paint for metal is hard-wearing enamel. Its oil base makes it somewhat slow to dry, but it ...

Testors Enamel Paints - 7 Metallic Color Set 1 - 1/4 oz- Metallic Gold, Metallic Silver, Metallic Copper, Flat Aluminum, Flat Steel, Blue Metal Flake, Red Metal Flake by Testor Corp.

Enamel paint has other, more practical benefits outside of just looking pretty. ... Since metal expands when it heats up, the painted surface is constantly in flux, ...