Anti-fog additives work by migrating quickly to the surface of the film, where they lower the contact angle of water droplets. This prevents water vapor, which condenses due to temperature differences across the film, from forming visible beads.

The way condensation appears also depends on the surface tension difference between the water and the film surface. This Antifog Masterbatch is designed for food packaging applications, helping to improve product appearance by reducing the cloudy, beaded look of fogged films or sheets.