Fintac 5331 Polymerized rosin Finjetchemical Industries Tackifier >> Rosin >> Gum rosin ADHESIVE Polymerized rosin for use in inks, Adhesives, paints, Varnishes, Soldering fluxes, synthetic resin ,etc. Fintac5330 is made of gum rosin through a new technology of sulfuric acid and zinc chloride. Polymerized rosin is a modified products of gum rosin, contains abietic type acids. It has a series of exellent properties such as higher softening point, non-crystalline, good oxidation-resistance, higher viscosity in organic solvent. Mainly used in inks, Adhesives, paints, Varnishes, Soldering fluxes, synthetic resin etc. Polymerized rosin made of gum rosin through a new technology of sulfuric acid and zinc chloride. Possesses high softening point, non-crystalline, good oxidation-resistance properties and high viscosity in organic solvent. Used as a tackifier in adhesives.