Airbrush

An airbrush is a compact spray tool, fed by a small air compressor, that atomizes thinned paint into a fine, controllable mist far more even than a brush stroke or a rattle can. It is the standard tool for priming, base coating, and clear coating scale models, since it lays down paint thin enough to preserve fine surface detail while still building up full, opaque coverage across several light passes.

Getting consistent results depends on more than the airbrush itself. Paint needs to be thinned to roughly the consistency of milk for most models, air pressure needs to stay steady from a compressor rather than a cheap can of propellant, and the airbrush itself needs regular cleaning between colors so dried paint does not clog the tip or spit onto a fresh coat mid-session.

A common mistake for beginners is holding the airbrush too close to the model or moving too slowly, which floods the surface with paint and causes runs, especially on vertical panels. Starting with thinner paint, more passes, and a consistent distance produces a smoother finish than trying to achieve full coverage in one heavy pass.