As any airbrush artist knows, nozzles are fine and not just any paint will do. If the paint is too think or the particles too coarse, the brush will not accept the paint. An incorrect mixture can clog an expensive brush sometimes beyond repair.
Our Airbrush Paints are water-based and ready to feed through your brush, no additives necessary. You should still regularly clean your nozzle, however, and be a good airbrush steward.