glycerol ester of gum rosin is an important raw material for the manufacture of ... , inks, rubber, soaps, paper e glycerol ester of gum rosin has been general used for ink, adhesive, paint, food and ... rubber, soaps, electronic industrial products, food grade ester gum, rosin ester resins etc.3. Packing:(1) Drum: Galvanized iron drum, 225kg ... executed and assured by contract. glycerol ester of gum rosin