The perfect color for a wash in modern US vehicles OIF and OEF. This Dirt color wash has been specifically suited for use over Modern US sand colored vehicles. 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 modeling 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 brush and White Spirit.