how do you prep armor for paint?

Thanks, I'll try those.
So, no wash with soapy water to remove machining oils?

 

Do multiple wipe downs with acetone soaked rags. That will clean it perfectly fine for primer.

 

You know what I love?

finding out there's no spray paint protection respirators available to buy (3M 7500)
Because of COVID-19

 

I’ve used spray paint outdoors probably 1000 times and I haven’t died yet. Shit I’ve even used it indoors and I haven’t died yet. I think you’ll be okay as long as you’re in a well ventilated area.

 

You'd be amazed how well several box fans with 20" filters can pull overspray away. Those should available at any Home Depot, Lowes, Walmart etc.