Waterbase isnt much different than solvent.

The water is the transporter instead of the solvent been the transporter, transporting the pigment to the panel!and thats it really.

You'll find colours cant be wet matched like before, so i advise a sprayout card 1st! When drying i would recommend an oven and blowers, either hand held or built into the oven like Junair Quads .

You need air movement to dry the water, the easiest way to describe it is it's like having you clothes out on a washing line on a dry dull day with no wind compared to a sunny day with some breeze/wind! The 1st would dry eventually, but the 2nd would dry far quicker.

Simple really,
Oh and you need a seperate spraygun and not the same one you'll use to laquer as you'll cause yourself problems