gum rosin China original gum rosin WW grade Gum Rosin · Properties and usesGum rosin is a kind of natural resin, a mixture with various organic acids ... , and important chemicals for paper-making, soap, paint, ink, adhesive, rubber, food, synthetic resin, electric insulating material and building industries. · Specifications (National ... dark and cool place, away from water and fire. Gum Rosin