... -g-HDPE & HDPE composite compatibilizer Model : GPM120HDPE based WPC coupling agent & MAH-g-HDPE & HDPE composite compatibilizerFeatures:BonpTM-GPM120 ... polarity and reactivity. BonpTM-GPM120 is a polymer coupling agent and adhesive, which used in glass fiber ... Polymer Coupling Agent: Used in filling composite materials, such as wood, wood fiber, glass fiber, talc, calcium carbonate, mica, aluminum ...