Aluminized, MET CPP, or metalized CPP film is a composite flexible packaging material made by coating the surface of a plastic film with a fragile layer of metal, particularly aluminum. Aluminized CPP film is a co-extruded Cast Polypropylene (CPP) film with a heat sealable one side and an aluminum metal treated other side. Metalized CPP film provides improved interlayer bond strength for multi-layer laminate structures, improving barrier characteristics. For metalizing CPP film, vacuum aluminum plating is typically utilized. The objective of the aluminum plating on the film's surface is to filter light and prevent UV radiation. It not only extends the shelf life of the items, but it also improves the brightness of the film. It is also less expensive, has a more appealing look, and has superior barrier qualities than aluminum foil. CPP metalized film is the best alternative to aluminum foil. Aluminized CPP film is commonly used in composite packaging. It may be used in dry and puffed food packaging such as biscuits, as well as the exterior packaging of different pharmaceuticals and cosmetics. It is also suitable for paper packaging and tray packaging.
