... 3.Usage: Adhesives, Pigment, Rubber Golden Gum Rosin Colophonygum rosin is important raw materials for the manufactire of Soap, Paper, Paint, Rubber, Resin, Electric ... raw material for the production of paper, coatings, inks, rubber, soaps, electronic industrial products, food grade ester gum, rosin ester resins etc.3. Packing:(1 ...