Aluminised film, also known as metallised PET film, is PET film coated with a thin layer of aluminum using vacuum deposition. This metallisation enhances the film’s reflective properties, improving holographic effects and security features. It is used in hologram security labels to create vibrant visual effects and increase tamper resistance. Additionally, due to its excellent barrier properties, aluminised film is commonly used in foil seal bags for food packaging, pharmaceuticals, and electronics protection.