Matters needing attention in Buddhist murals

Wall painting, that is, murals! First of all, the bottom of the wall should be well painted. First, use glue as the bottom to prevent moisture. After the adhesive layer is dried, gypsum powder should be added as the bottom layer. Glue is used moderately. If it is too thick, it will crack; if it is too thin, it will lose powder. The bottom of the painting needs two or three layers to be stable. After each layer is finished, the second layer should be dried naturally, and each layer should be polished evenly without potholes and sundries.

Traditional murals pay attention to the use of mineral pigments, three alum nine dyeing, that is, dyeing nine times, every three times coated with alum water to fix color. Such murals can last for thousands of years. This is how Dunhuang murals are painted!