... ,high viscosity 4. 25kg/pp bag Glycerol Ester Rosin 138# ,Ester Rosin 138#, Glycerol Ester Rosin 1. CAS:8050-31-5 2 ... Material12.0% maxImpurity matter30 ppm max3. Glycerol Ester Rosin 138# ,Ester Rosin 138#, Glycerol Ester Rosin be made from gum rosin or ... natural rubber adhesives, solvent-born Acrylic adhesives. Glycerol Ester Rosin 138# ,Ester Rosin 138#, Glycerol Ester Rosin