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fontgeek · 01-12-2008

What kind of paint are you using when this happens?

Have you doctored/polished/sanded the needle?

I would check the needle first, if you have doctored it, then you may have changed how it seats in the nozzle, and that may leave an odd gap that collects that little bit of paint.
Check the needle to make sure it is straight and smooth, check the nozzle too.
If your paint is not well mixed or strained, then it may be that when you push the trigger forward, small solids are being forced out the nozzle and nozzle cap that otherwise rattled around in the nozzle or paint passage. Some paints are more prone to this problem than others.

If you have doctored your needle, you might consider replacing it with a new one. Make sure the needle cap, the nozzle cap, and the nozzle are clean and clear of any paint or debris. This may require a strong magnifying glass or jewelers loupe for the nozzle.
ALWAYS work over a contained area, like a roasting pan or something of that nature, that will keep you from losing piece if and when they drop.

Bubbling in your cup means that your airbrush found it easier to pass the air back through the nozzle and paint passage than it was to have it go out through the nozzle cap. If you are going to remove your nozzle to inspect it, then apply some beeswax to the threads before you reinstall it. Be careful not to over tighten the nozzle, they snap off easily. Check the nozzle cap and the needle cap to make sure that they are clean and clear of any paint or buildup of debris. If your Createx was really thick, then your airbrush may have found that it was too thick to atomize through the nozzle cap, so it forced the air back through the threads on your nozzle, if your needle was all the way forward, then it should have been sealing off the nozzle opening itself. Again, if you have doctored your needle, then you may have changed how it seats and performs.

01-12-2008	#2 (permalink)
fontgeek magazine subscriber Join Date: May 2006 Posts: 449	Re: strange "spit" What kind of paint are you using when this happens? Have you doctored/polished/sanded the needle? I would check the needle first, if you have doctored it, then you may have changed how it seats in the nozzle, and that may leave an odd gap that collects that little bit of paint. Check the needle to make sure it is straight and smooth, check the nozzle too. If your paint is not well mixed or strained, then it may be that when you push the trigger forward, small solids are being forced out the nozzle and nozzle cap that otherwise rattled around in the nozzle or paint passage. Some paints are more prone to this problem than others. If you have doctored your needle, you might consider replacing it with a new one. Make sure the needle cap, the nozzle cap, and the nozzle are clean and clear of any paint or debris. This may require a strong magnifying glass or jewelers loupe for the nozzle. ALWAYS work over a contained area, like a roasting pan or something of that nature, that will keep you from losing piece if and when they drop. Bubbling in your cup means that your airbrush found it easier to pass the air back through the nozzle and paint passage than it was to have it go out through the nozzle cap. If you are going to remove your nozzle to inspect it, then apply some beeswax to the threads before you reinstall it. Be careful not to over tighten the nozzle, they snap off easily. Check the nozzle cap and the needle cap to make sure that they are clean and clear of any paint or buildup of debris. If your Createx was really thick, then your airbrush may have found that it was too thick to atomize through the nozzle cap, so it forced the air back through the threads on your nozzle, if your needle was all the way forward, then it should have been sealing off the nozzle opening itself. Again, if you have doctored your needle, then you may have changed how it seats and performs.