... of synthetic rubber, polyethylene, polypropylene, SIS, EVA, natural tackifier resin (such as terpene, rosin) and so has good compatibility. ... The grades of oil in the rubber mixing of resin can be used as a tackifier, reinforcing agent, filler ... strength, elongation, anti-Slovak split strength, are the manufacture of tires, ideal rubber processing aids. Hydrocarbon Resin For Tire & Rubber