Vallejo's Model Air series are matte acrylic paints developed primarily for airbrush/sprayer use. Can be used undiluted or with Vallejo Airbrush thinner and Vallejo Flow Improver. The paints of the series are characterized by perfect coverage, adhesion and fast drying. Before applying, it is recommended to treat the surface with a primer. The paints are packaged in a 17ml dropper bottle that ensures finer dosing and prevents drying out.