Norsolene 9090 Aromatic hydrocarbon resin Atofina-Cray Valley Norsolene resins series 9000 Traditional aromatic hydrocarbon resin. Improves both the cohesiopn and/or the tackiness of adhesives. Tackifying resins : regulating the rheological properties (hot viscosity, open time, setting time) of the hot melt adhesives based on EVA copolymer. Used in hot melt adhesives for packaging and wood. Aromatic hydrocarbon resin. Used as a tackifier in hot melt adhesives for packaging and wood. Improves cohesion and tackiness. Regulates rheological properties such as hot viscosity, open time and setting time.