I wonder if anyone tried this powder?
Sound like it could be the good of both worlds (Acrylic and Epoxy).
"H-Series Hybrid powders perform well over cold rolled steel, castings, hot rolled steel and aluminum substrates suitably pretreated. They may be applied by corona or tribo charged electrostatic powder guns.
It is possible to achieve film builds of 1 - 1.5 mils, but 2 - 3 mils is the norm."
http://www.prismpowder.com/hybrid