... ester of gum rosinDescription:glycerol ester of gum rosin are made from gum rosin or refined gum rosin through esterification with glycerol, has ... . It is an ideal tackifier material. Specification: TypeBL90Solubility (with toluene 1:1)clearColor(Fe-Co Scale)2-3Acid number ... resistance, thermal stability, strong adhesion, can forming transparent system with NR, CR, SBR, EVA, SIS and SBS polymers in ...