Oil painting is a painting method involving the procedure of painting with pigments with a medium of drying oil as the binder. It has been the most common technique for artistic painting on canvas, wood panel or copper for several centuries, spreading from Europe to the rest of the world. The advantages of oil for painting images include greater flexibility, richer and denser colour, the use of layers, and a wider range from light to dark. But the process is slower, especially when one layer of paint needs to be allowed to dry before another is applied.
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