Murals can be categorized into two types based on technique: painting-type and painting-craft-type. Painting-type murals are created directly on a wall surface using painting techniques, especially hand-painting. There are five specific methods:
Dry murals: These are painted on a dried wall surface using a mixture of coarse and fine clay, and lime plaster.
Wet murals: Paints are applied to a semi-dry base using lime water mixed with pigments. A drawback of this method is that it must be completed in one go, making it relatively difficult.
Egg tempera: This method primarily uses egg yolk or egg white as the main binder and pigments. Painted on a dry wall, it is opaque, dries quickly, and has a hard texture.
Wax painting: This involves mixing wax with pigments, applying it to a wooden or stone surface, and then heating and treating it.
Oil paintings: These are murals painted on linen or wooden panels. Painting-craft-type murals utilize various techniques to achieve the final effect. Due to the handcrafting or modern techniques, combined with the texture and properties of different materials, they can achieve artistic effects that other painting methods cannot, and are therefore widely used.
