Re: Frustration setting in
tip dry on the needle is common with all paints, most airbrush artists run without the needle cap on the airbrush so they can easily clean the tip dry with thier fore finger and thumb, i'd be leary of using a q-tip or anything like that as you may get fibres stuck in the tip or worse you may damage the tip or needle.
make sure the paint is clump free before you reduce, squirt some out on a piece of paper and swish around with your finger. look for grit, lumps and clots, if it comes out of the bottle that way return it and go somewhere else.
the paint could have been sitting in a cold spot of the art store for months/years and gone bad, i see this all the time at one of the art stores i go to. they keep all the golden airbrush paints against the store front window. when left in the sun and this close to the window the constant heating and cooling seperates the paint and causes it to go bad.
cold is especially bad for acrylic paint.
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