OPE wax used for lubrication

OPE wax is a plastic processing aid that provides both internal and external lubrication. It is widely used in the extrusion, injection molding, and calendering processes of thermoplastic resins such as PVC, PE, and PP to reduce melt viscosity, minimize equipment friction, improve demolding properties, and enhance the surface gloss of finished products.‌‌
‌Internal Lubrication: The polar groups of the molecules are partially compatible with the resin, reducing intermolecular friction, promoting plasticization, and reducing energy consumption.
External Lubrication: It migrates to the melt-metal interface to form a lubricating film, preventing roller/mold sticking, improving flow, and enhancing demolding efficiency. It performs exceptionally well in rigid PVC profiles, pipes, and cable compounds.
Balanced Lubricity: Compared to polyethylene wax, OPE wax introduces polar groups through oxidation, resulting in more balanced internal and external lubrication in polar systems and reduced tendency to bloom.