Uni-Rez 2647 Polyamide Arizona Chemical Polyamide ADHESIVE >> Hot-melt UNI-REZ 2647 is a flexible hot melt polyamide adhesive resin based on dimer acids. This product is used for hot melt bonding of pre-heated metals and plastics (including plasticized PVC). Flexible hot melt polyamide adhesive resin based on dimer acids. Used for bonding of pre-heated metals and plastics (including plasticized PVC).