Matt acrylic colors, water-based and specially formulated for airbrushing. The Model Air color range contains a comprehensive selection of military colors used in recent history, including colors from WWI, WWII, and up to the present. Each color is based on extensive research by our experts of existing and previous military references to offer the modeler the highest possible historical accuracy. Model Air can be used directly or diluted with Vallejo Airbrush Thinner or Flow Improver. It is recommended to first prime the surface and then apply Model Air in several layers. The colors dry very rapidly and form a homogeneous paint film of extraordinary resistance while preserving even the smallest detail of the model. For airbrushing these colors, the compressor air pressure is recommended at 15 to 20 PSI or 0.5 to 1 kg. Model Air can also be applied with a brush. For correct airbrush maintenance, we recommend using Vallejo Airbrush Cleaner.