Reply To: Looking for some help with my Airbrush.

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“I generally dismantle the brush and clean it before each session. I use Acetone and a kit I got for cleaning them.”

You should be cleaning it after each session, not before.  That way nothing has time to dry inside.  It also means you’ll have minimal chance for residue from any cleaning agents still inside to ruin your paint.  It also gives it time for any moisture inside to evaporate before use so it can’t alter your mixtures.  I might be overthinking some of these points, but why take chances?