... -crystalline, good oxidation-resistance, higher viscosity in organic solvent. Polymerized rosin is mainly used in ink, oil paint, rubber, adhesive, waterproof ... agent, etc.SALES SPECIFICATIONPolymerized Rosin Appearancetransparent solidPolymerized Rosin Color (Gardner)10 maxPolymerized Rosin Softening Point (R&B), °C90-145Polymerized Rosin Acid Value, mgKOH/g140 ...