C9 petroleum resin is a kind of internal plasticizing resin produced by C9 fraction, by- products of petroleum cracking, through pretreatment, polymerization and distillation. It isn't a high polymer bat a low polymer with the molecular weight between 300-3000.Generally, C9 are used together with other kinds of resins as promoters, adjusting agents and modifiers. Applications: a. Paint b. Contact Adhesive c. Hot Melt Adhesive d. Pressure Sensitive Adhesive e. Printing Ink f. Primer g. Asphalt / Floor Tile h. Rubber Additive i. Alkyd Resin j. Epoxy Resin