paint sprayer

I am working on my second grow box, a converted dresser. I wanna know what people prefer as far as interior coatings?? I am trying to do this as cheap as possible. Should I go with flat white paint or mylar?? I know it will take about three coats with paint to get it right. I am also making...

I've done to grow with PVC tubes and drip irrigation misters. It worked pretty well but I know I was not getting the micron size that would've been optimum. I'm thinking of trying an internal mixing paint sprayer with a siphon. Has anyone set up an aero grow with one of these? Also how...