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scottie3158

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Hi all,
I have a question for you more experienced people. What would cause the air brush to stop spraying mid flow, but on releasing the trigger it sprays a small amount.
Any pointers would be very welcome.
Scottie
 
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If the needle chuck nut is tight and not slipping chances are partial nozzle blockages crud or bits of skin etc, not much else i can think of.

Steve.
 

Mr Bowcat

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Agreed, blockage in the nozzle is probably the most likely cause.
 

Tim Marlow

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Hi guys, are we sure this isn’t tip drying, with the dried paint block being circumvented when the needle closes and moves the tip forwards? Happens to me every time I use acrylics through an airbrush....what paint are you using Scottie?
Cheers
Tim
 

scottie3158

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Hi Tim,
I use Vallejo acrylics most of the time. when I mix it is either to thick or comes out in large dropplets
 

JR

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Hi Tim,
I use Vallejo acrylics most of the time. when I mix it is either to thick or comes out in large dropplets
Paul.
I had the same problem , got some Vallejo retarder from John at the shop.
I just add a couple of drops into the paint as per the instructions, mix and pour into the paint pot on the ab. Seems to have worked , even in this heat. Before I would have to clean the needle and the head. It would always be as Tim has said, a lump of crud would appear when I pushed the point of tool through the nozzle.
John.
 

Tim Marlow

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Make that three...Tamiya with Mr Colour levelling thinners, match made in heaven, sprays like silk....I’ve tried several brands of acrylic and had the same issue with all of them...need a good mask though.
Cheers
Tim
 

Jim R

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Hi Scottie
Another possibility is that the needle is slightly bent near the tip. Take out the needle and roll it on a flat surface and watch the tip. You will easily notice if the point is bent.
Jim
 

scottie3158

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Thanks all,

For the replies. I'm not sure if the tool fine adjustment is big enough.
 
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