GregStith
Air-Valve Autobot!
In response to the video and you noting the 30 drops of reducer. One you should drop you air way lower with that much reduce. Two you are stopping the movement of your had and air slightly before you are stopping the paint flow which is causing a little blob of paint popping off the needle tip. I have this happen a lot. I am going to repeat this once again. Seal all your threads with beeswax. It fixed everything that you are showing here. Unscrew the nozzle part way and put a small amount of beeswax on the thread with a toothpick. Then run a lighter unde go a split second just to melt the wax. Then quickly thread the nozzle the rest of the way in while the wax is still real soft! Wipe off any excess wax. Then do the head in the same manner. Please note you are not heating the head just barely touch the wax from below so it runs down around the thread to make a complete seal. I have been so frustrated with Createx for years and it was all due to warn threads and bad seals on my Iwata airbrush. I have sealed all my brushes and now the CI flowed perfectly. I only need to reduce down to a 3 to 1 reducer/paint ratio. And my air pressure is around 23 psi. The more reducer the lower my air will go. I was ready to throw 3 sets of paint in the garbage because of everything you showed. Hope this helps.
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Thanks for the help. I think I can mark some possibilities off the list.
- I've tried lower pressure during this test and it only gets worse.
- If you listen the air never stops the whole time. I pull the trigger back until the paint starts to flow. I paint a squiggly line, then the paint stops flowing on its own with the trigger still pulled back and the air on. I return the trigger to the seated position while the trigger is still depressed (air noise still evident) and a blob of paint comes out.
-I can mark the threads off the list. I've sealed the nozzle to the base with loctite. Sealed the nozzle cap and base with beeswax. I can spray cleaner through the gun at 50 psi and no more bubble leaks at the threads.
-I tightened the needle packing nut a little tighter than "slight drag" so unless it's damaged beyond what my eyes can see then it's marked off the list.
It's pretty plain to me from the second video that green flows way worse than black. I'm going to do the same flow test (squirt into garbage can ) on all colors and note the ones that flow much slower. I'm then going to do a test spray on all colors and see if the problem only occurs with those slower flowing paints.
Thanks