... important raw material for the manufacture of adhesive, coating, inks, rubber, soaps, paper etc. Gum rosin has been general used for ink, adhesive, ... :It is a kind of natural resin, mainly composed of various kinds of resin acids, it can be dissolved easily ... raw material for the production of paper, coatings, inks, rubber, soaps, electronic industrial products, food grade ester gum, rosin ester resins ...