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Dredge nozzle blowing instead of sucking10/16/2023 This can be caused due to various reasons solvents or residue paint entering the air valve and causing the air valve seals to become swollen or sticky. Gently push the needle forward until it rests inside the nozzleĪir Pressure Remains On When Trigger Released.Shutting the paint flow off before the air flow will spray any residue paint off the tip of the needle. Alternatively if the airbrush only sprays a blob of paint  when the trigger is depressed then follow the Air On – Air Off procedure first push down on the trigger, then pull the trigger back for paint flow and then after spraying return the trigger forward before releasing the trigger/air flow. This is caused because the needle isn’t sitting flush inside the nozzle. Increase pressure.Īirbrush Sprays Paint When Trigger Depressed For Air Pressure Too Low – Sometimes the paint can be slightly too thick and the pressure is too low to atomize.Paint Too Thick – Thin paint with appropriate reducer to a milky consistency.Needle not Moving with Trigger Action – Check and tighten the needle chucking/locking nut.Blocked Nozzle – Clean or soak the nozzle.This can be caused by many things the most common are a blocked nozzle (due to poor cleaning), a loose needle chucking nut, improper/low air pressure and the paint being too thick Straighten the Needle Tip – Can be achieved with a flat sharpening stone.The fluid exits the airbrush and follows the bend on the tip of the needle. Tip Dry/Blocked Nozzle – Clean or Replace. ![]() ![]() This can have several causes the most common are an air leak in air cap/nozzle area, tip dry/blocked nozzle, a loose air cap/head or a split airbrush nozzle. This is caused by air pressure entering the paint reservoir. Listed below are some of the most common problems experienced while airbrushing (and the recommended solutions) Bubbling in the Gravity Cup or Suction Bottle
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