Aero Grund Schmincke airbrushing primer 125ml Transparent primer for airbrushing. It is colorless, resistant to light and does not age. Ideal for working with Schmincke Aero Color inks. Suitable for use on non-absorbent surfaces such as plastics and metals. It can be diluted with water, but when it dries it becomes waterproof. Sand finely and if necessary repeat the process. Quantity: 125 ml. Brand: Schmincke.