I use an Aztec airbrush, usually with Tamiya acrylics.
I never seemed to be able to keep it clean and spraying smoothly. I’d flush it when done and follow with cleaner. I tried taking the nozzle apart and leave it soaking in water until the next use.
No matter what I tried it would quickly clog and my spray would be hard to control.
Yesterday, I had a brain fart. I decided to try an ultrasonic cleaner I use for another hobby. I took apart the nozzle, threw it into warm water, and fired up the ultrasonic cleaner for 30 minutes.
When done the nozzle was spraying as if it was new.
Now I wonder what took me so long to think of trying this
You can soak dried Tamiya or any other brand acrylic in water till the cows come home and it won’t clean a dirty tip. If you soaked it in lacquer thinner overnight that would do it. Alcohol probably would too.
Leaving it soaking in cleaner didn’t work for me. But using the ultrasonic is now how I end my session. After doing this a couple of time all residue has disappeared and the tips look and run as new. I can’t believe it took me so long to think of this.