Mission Models water-based acrylic paints are ideal for model railroading, military models, automobile models and more. Colors are available for weathering and special effects as well. Fine arts grade paints feature organic pigments and materials and are supplied airbrush ready. Paints are also brushable add Polyurethane Intermix to increase working time if needed. Pigments in these paints will settle in the bottle, simply shake or mix before use.