Airbrush Flow Improver Hartem 200ml Airbrush Flow Improver is a softening medium to improve the fluidity and transparency of paint and delay its drying within the airbrush mechanism. Reduces the surface tension of the paint to avoid setbacks and marks during application. Suitable for paint and varnishes. Significantly improves finishes. Ideal to use as a complement to the thinner. Does not leave unwanted marks. We recommend 2 drops of Flow Improver to 10 drops of paint inside the airbrush cup, although the amount may vary between products and factors such as viscosity, temperature, additives...) Quantity: 200 ml. Brand: Hartem.