Schmincke AERO COLOR TOTAL COVER is a low viscosity, liquid acrylic formula. It is the least viscous product in the Schmincke acrylic range that stays true to color,even on dark or black surfaces!AERO COLOR TOTAL COVER can be applied by spray gun, brush, re-touching pen, or dipping brush. It is possible to use them pure or to spray them after they have been thinned with water. They dry waterproof and lightfast.AERO COLOR TOTAL COVER can be used on papers and cardboards as well as non-absorbent surfaces such as film, hard plastics, canvas, and (after preliminary treatment) metal.