I'd agree with David Nichols. I've used Vallejo ModelColour exclusively for over 10 years now, and once you learn how to use it properly there are few paints that are better. You can thin Modelcolour for airbrushing use the clear Vallejo thinners, and it brush paints beautifully too with two or three thin coats being better than one thick coat.
You need to use a primer, though some say it will adhere to thoroughly cleaned plastic or resin. I don't risk it. It's a bit fragile till it cures properly too, note cures not dries, but once cured it is pretty robust.
Given that Vallejo is so widely available through mail-order, and there is the now updated Naval-Colours equivalent charts it's worth considering switching to them.
FWIW, I live in the UK, have tried Humbrol acrylic and enamels, Colourcoats, Lifecolor, Revell, and a couple of other lesser know brands such as Coat D'armes, I've always returned to Vallejo; I think it's that good.
: You can airbrush most paints. Even paints
: that say you can airbrush them, are rarely
: "airbrush ready". For example
: Vallejo Model Air, which is made for
: airbrushing, still may require some thinner
: or flow improver or retarder.
: Airbrush ready paints are usually much
: thinner out of the bottle. So if you find
: something thick, it is NOT made for an
: airbrush specifically.
: I really don't like Testors Acryl paints (or
: Testors paints in general). I find them to
: be either thick and gloppy, or thin, watery,
: and translucent. I've used some to hand
: brush 1/72 planes and they were frustrating
: at best. RAF Sky and RAF Earth painted
: fairly well when thinned. US Neutral Grey
: was like murky water. US Dark Green, Dark
: Earth etc were also watery.
: I think you could do better with Vallejo
: Model Color paints. They hand paint
: beautifully. You do need a primer but beyond
: that, they are great. There is a bit of a
: learning curve to get used to them as they
: are more like a concentrate. The more you
: thin them they better they perform.