Jo Sonja's Acrylic Flow Medium is used to thin acrylic colours and mediums, dilute binders or reduce adhesive qualities. High versatile, Jo Sonja's Acrylic Flow Medium can be mixed to produce a smoother paint showing no brush marks or remarkably long strokes with very fine detail and definition. If airbrushing, try mixing 3 parts Jo Sonja's Acrylic Flow Medium and 1 part acrylic paint.