Don it's all on how permanent you want it to last. You can try nail polish it might work for you. Nothing last very long even powdercoating it. I have had some(powder coated) jigs used it a couple times in Rocky areas and the paint is off to a plain lead jig.
I've used rust-oleum spray paints on jigs and so far they all lasted long enough for me to lose them so I'd say it work just as good.