Gum arabic is a natural binder that can be used in a variety of applications, including in the production of crayons. It is derived from the sap of the acacia tree and is commonly used as a binder in watercolors, inks, and gouache. Because gum arabic is water-soluble, it can be easily combined with pigments to create a smooth, workable mixture that can be applied to paper or other surfaces.

When used in crayons, gum arabic is mixed with pigments to create a paste, which is then shaped into sticks and allowed to dry. The result is a durable and vibrant coloring medium that can be used for drawing and coloring.

Gum arabic is also used as a binder in other types of art materials, including lithographic pencils and tusches, which are used in printmaking.
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