Metallized Aluminized PET Films are used for a variety of purposes. The major use of these films is for food packaging, but they are also used in flexible packaging applications, protective coatings and other special applications. They are light and cost effective and add aesthetic appeal to many packaging applications.
During the process of metallization, a thin layer of aluminum is applied to the film. The amount of metal applied depends on the application. This process provides a barrier against moisture and oxygen. The metal also reduces electrical conductivity, protecting the metal from further chemical conversion. The film can be colored to achieve a variety of colorations.
In addition to its use for food packaging, aluminized PET films can be used for decorative material. The film has a shiny metallic appearance and can be used for printing, lighting, blackout window treatments and other decorative uses. This film is generally sold in biaxial orientation, but there are several other types.
Compared to aluminum foil, aluminized PET films offer lower cost and better lamination bonding strength. They can also be used for reflective insulation and are particularly useful for flexible packaging applications. In addition, they can be used for electromagnetic radiation barriers and moisture barriers. The aluminized PET films are widely used in flexible packaging applications, and can enhance the shelf life of packed products.
Unlike aluminum foil, which offers no absolute vapor barrier, aluminized PET films provide a high barrier against water vapor. This makes them more suitable for flexible holograms, wrappers and other applications. In addition, they can be used in multilayer insulating film blankets, allowing for thermal insulation for low-temperature applications. They are also useful in spacecraft applications, primarily for satellites. They can also be used as a dielectric in capacitors.