PE (polyethylene) masterbatches are additive formulations that consist of PE as the carrier resin and various additives or colorants. They are commonly used in the production of multilayer blown films to enhance the film's properties and performance.

PE masterbatches may contain antioxidants that help protect the film from oxidative degradation, extending the film's lifespan and maintaining its mechanical properties over time. PE masterbatches with impact modifiers can be used to improve the impact resistance of multilayer films, making them suitable for applications where the film may be subjected to physical stress.