Metallized BOPP film and aluminum foil are commonly used in flexible packaging industry. What are the differences of metallized BOPP film and alumimum foil?

1. For metallized BOPP film, its major raw material is plastic film and just a layer of alumimum is metallized on BOPP film. For alumimum foil, it is a kind of metal.
2. The barrier function of aluminum foil is a lot better than metallized BOPP film. Therefore, aluminum foil is commonly used for making moisture-proof packaging bags.
3. From the appearance, metallized BOPP film has very good light-reflecting effect. However, alumimum foil looks silver white or sliver gray.
4. Metallized BOPP film is a lot lower in price than alumimum foil.