Badger Air-Brush SNR-201 Stynylrez Water Based Acrylic Polyurethane Surface Primer, 2-Ounce, White

The good:It's tenacious and very durable, and it dries to a very nice level and smoothly matt finish even if the wet application is rough. In these regards it's the best primer I've used. Very nice.The bad:That tenaciousness also applies to your airbrush: you will need to do a tear-down every time you spray with it, as flushing alone will barely touch the stuff. It's also VERY thick for ABing, about the consistency of brushable craft paint. You can still easily spray it with smaller tips/needles and at lower pressures than recommended, but even if you go with the recommendations, it atomizes with a coarseness halfway towards spatter (and at a noticeably lower fluid volume than is normal for your setup), so it's a really good thing it dries so nicely level. This is the reason so many people talk about wanting to thin it, even though you're not supposed to thin primers in general. With my HP-CS, I actually found it sprayed nicer with the .3 nozzle than with the recommended .5, albeit at a much reduced fluid volume.The coarse atomization is ultimately canceled out by the level drying, so that's not a big problem in the end, more about accurately judging your coverage and how well you're spraying while you're doing it. Having to tear down and scrub out the brush every single time is a pain though. As a "bonus", the specific cleaner they recommend is almost impossible to find. Oddly, however, it doesn't seem to have problems with tip dry or clogging, which you'd think it would with these spray characteristics.Previously I'd been using Mr. Surfacer as an airbrush primer. This Stynylrez stuff is definitely better as an actual primer, but the Mr Surfacer sprays much finer and cleans up much easier, so I still find myself reflexively wanting to return to it, even though I prefer the results I get with Stynylrez.

Best acrylic primer out there, hands down. Highly recommended, and I'm pretty damn picky about primer. Feathers beautifully when sanded. Dries within an hour. Sprayed Tamiya lacquer paints on top with no problem, which I was kind of afraid of. Just great great stuff.

worked great!I used with my Iwata at 40-60 psi. i did use light reducer

Much better than any other air-brush primer I've tried. A bit runnier, but doesn't clog up the airbrush as quickly as the other thicker primers that dry far faster.

Came in clumps mixed in water. No amount of shaking has helped. Even tried thinning it and then shaking. Unusable.

Used many primers over the years, but this by far the best.

great

The primer itself works well, is opaque, and dries quickly! I didn’t have to thin it for my airbrush as it worked straight out of the bottle. However, it does clog my airbrush needle because of how fast it dries, so it has its pros and cons.