Vallejo Auxiliaries: Airbrush Flow Improver (200ml) (71.562). Manufacturer: Vallejo Product Line: Auxiliaries Airbrush Flow Improver is a medium to improve the flow and delay the drying of paint on the needle while airbrushing. It is recommended to add 1-2 drops of Flow Improver to 10 drops of paint in the cup of the airbrush. Comes in large 200 ml./ 6.76 fl. oz. bottle Works on plastic, resin, white metal, and more Please note: For full safety information, please visit the manufacturer's safety page .