Badger Air-Brush Company Air-Opaque Airbrush Ready Water Based Acrylic Paint, Cool Grey, 4-Ounce Airbrush-ready paint can be intermixed with other Air-Opaque colors Quick drying, water resistant Made of organic pigments in water based acrylic copolymer, ready-to-use, requires no chemical thinner (thin with water, if necessary) Low odor; Safe to use; 100-Percent colorfast Non-flammable, Non-carcinogenic