Wash: NATO Camo Vehicles (AK Interactive) (AK075) (20)Enamel Product. The perfect dark wash for modern vehicles painted with a dark tri color camoflage, especially NATO vehicles or dark camos. The basic technique used to weather any type of model is the wash, a classic technique that is still one of the most used techniques in modelling today. Apply the washes after shaking the bottle with a large brush to pick out details and creating shadows. The excess of the wash can be easily removed with a clean