Gum Rosin G90 is the slight yellow or water-white transparent solid, which is made from gum rosin or refined gum rosin through esterification with glycerol; G-90 is good tackifying resin. The Industry grade of Glyceryl Rosinate (a polyol ester of rosin), also called Glycerol Esterof Gum Rosin (GEGR), which is used for specialty industries of adhesives,coating and paints. G-90 also widely used in polymers including EVA, acrylics, polyurethanes, SIS and SBS.