About to paint cases

I have sandblasted them and put in my dishwasher. I am using pj1 fast black. My plan was to put 2 or 3 light coats and let it dry. After that i was going to stick them in my powdercoat oven. Should I do a long time at low temp on fairly high temp for a shorter duration?

I'd think a long,low temperature cure would make a durable paint job versus a quick, hot one.

If I'm in a hurry, I'll fire up the oven in the house and after an air dry of an hour, I bake spray painted parts at 350 F for another hour. Open windows as the fumes make the house stink if possible.

MFolks wrote: If I'm in a hurry, I'll fire up the oven in the house and after an air dry of an hour, I bake spray painted parts at 350 F for another hour. Open windows as the fumes make the house stink if possible.

If you're married or have a live in girl, you can usually get away with that ONCE. KalGard is the worst, just ask my wife...

Seriously, long and low temp vs, high/ short duration seems to work better

No, my wife does not object, as long as the house is throughly fume free after I'm done baking parts.

Do I need any adhesion promoter? OR just shoot it on the blasted metal?

As long as the surface has some "Tooth" (a term used for a good paintable surface) and is oil/grease free, the paint should stick.