Adhesive (glue): production and usage of adhesiveshas been common sincethepast. Traditionally, materials like tree gums were used as glue. In previous centuries, adhesives had plant or animal origins. Since the nineteenth century, with the gradual advent of adhesives made in polymer industry, the traditional adhesives lost their popularity. Adhesive industry is widely expanding and there are few modern man-made items that would not adhesives.

Azar Taban Asia with the production of a variety of industrial adhesives is among the pioneers in this field in Iran. Specifically, industrial adhesives, in the wood industry, share a major proportion of the total production of this type of adhesives worldwide.

In general, adhesives can be classified in different ways: hot and cold adhesives, pure and impure adhesives, solid and liquid adhesives, natural and synthetic adhesives.