Plexar tie-layer resins from LYB are anhydride-modified polyolefins designed to bond dissimilar polymers in multilayer, co-extruded structures. First introduced in the North American market in the 1970s, Plexar resins remain a global leader in tie-layer technology.

These resins provide strong adhesion to materials such as ethylene vinyl alcohol (EVOH), polyamide (nylon), PET and various polyolefins. Plexar tie-layers are used in a wide range of applications including blown and cast film, extrusion coating, blow molding, sheet extrusion, wire and cable and other industrial bonding processes.