Resin Materials: Any high molecular compound that can be used as a raw material for plastic processing is called a resin, which is categorized into natural resins and synthetic resins.

Resins typically refer to organic polymers that soften or melt when heated, exhibit a tendency to flow under external forces during softening, and are in a solid or semi-solid state at room temperature, although they can also be liquid. Broadly speaking, any high molecular compound that can be used as a raw material for plastic processing is termed a resin.

Resin is a secretion of various plants, particularly from coniferous trees, belonging to the hydrocarbon (carbon-hydrogen compound) class. In other words, trees transform air and water into resin, which is generally used for self-protection, such as to shield themselves from pests or to protect against wind, sun, and rain.