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https://www.micromark.com/Vallejo-Paint-Feed-Adapter-for-Airbrush-by-Micro-Mark?msclkid=3dbb8977a65e1bd7ba4fec8ef48e142f&utm_source=bing&utm_medium=cpc&utm_campaign=NX_NTM_Shopping_Segregated&utm_term=4576442278804724&utm_content=Paint%20Finishing%20Accessories

As near as I can tell:
You need an airbrush with a removable gravity feed paint cup like the Iwata Neo CN - instead of the cup, you screw in the bottle and gravity feed the bottle into the airbush.

I'm already imagining extra bottles with water/cleaning solution/etc.

I'm also imagining it not working because the gravity feed doesn't suck the paint out of the squeeze bottle.

So I thought I'd ask if anyone has tried one.

I have not! But I will share my ignorant opinions anyway...


It would work. There's still a pressure gradient in a gravity feed airbrush. You'd likely need higher pressure - as would be the case in a siphon feed airbrush. There would have to be a pretty tight seal between the pot and the airbrush (to avoid leaks), which may mean that air has trouble entering the pot to replace spent paint. This would mean you have an uneven pressure when spraying - the actual pressure of the paint leaving the nozzle would decrease as the bottle emptied, as more energy would be needed to pull paint from the pot as it empties. Might not be much of a concern, but consistency is really important in getting good results. Their demo videos shows one of those mini, tankless compressors which are god awful in this regard, so clearly the manufacturer doesn't care.

Beyond that concern, I just don't see the use case? It's not any easier to screw in the paint pot than it is to just squeeze a couple of drops into the cup. You still have the clean the airbush with this method, it just becomes way harder? I am imagining when you are done spraying, and you want to remove the bottle. So you'd have to turn the whole thing upside down right? Otherwise paint is gonna drip out the bottle. But then you'd still get paint dripping out of the airbrush when you remove the bottle?? You make a mess either way. Then you have to clean the airbrush anyway, but now it's harder to clean because you don't have a convenient cup to pour cleaner into, and to back-blow the paint out the needle. So do you attach a cup AFTER removing the paint bottle JUST to clean the airbush? Or just a deal with it being harder to clean?

So what was the point of the whole exercise? The clean-up is worse, there might be pressure consistency issues, you lose the ability to modify the consistency of the paint in the cup, changing colours would be an absolute nightmare.

In exchange you get.... The ability to dump an entire bottle of paint through your airbrush in one go? I guess? But even then, you'd run into dry tip or your compressor overheating before you can blast that much paint, unless you plan on caking your models in paint thick enough to ruin them.

Genuinely can't see a single up side or use-case here - but maybe I am missing something. It's the sort of thing that on first glance you have the reaction "hey that's neat" but when you stop think about it for a few minutes it all falls apart...