Antifog masterbatches prevent condensation of water vapor on the surface of a clear plastic film. These small droplets cause poor film transparency, low attractiveness, and spoilage of packaged foods.

Antifog masterbatches provide short and long-term antifog performance and are typically used in the skin layer of a polyolefin film. These migratory products are typically used in cold-fog applications such as fresh produce, meat, and general refrigerated food packages as well as in hot-fog applications where food may be cooked or kept hot. Agricultural applications such as greenhouse films are also typical.

Antifog masterbatches allow a producer to include the chemistry into a film or molded part instead of a topical application.