The solvent portion of a paint mixture used for thinning the paint down prior to airbrushing or when doing a wash. Lacquers require the use of lacquer thinner, enamels can be thinned with mineral spirits or household paint thinner, and acrylics are thinned with either water or alcohol depending on their base. In lieu of the brand name thinner when dealing with alcohol based acrylics vodka or 70% rubbing alcohol can also be used.