1. Terms: PET, Mylar film, Polyester film.
- PET: polyethylene terephthalate;
- Mylar Film: metallized PET film with a layer of aluminum powder in vacuum environment get Mylar film；also named VMPET (Vaccum metallized PET)
- Polyester film: including not only PET film but also CPP film, OPP film and others, PET fims is the most popular one of them.
2. Why aluminum powder in VMPET?
Silver powder, Zinc powder and other metallic powder all of them could be paint to PET, but Aluminium powder is the cheaper one with good function which made it become the most popular one, then VMPET film mainly means PET film coating with aluminum powder.
3. what is the advantage of VMPET?
- Firstly with PET film which a kind of plastic film as substrate, VMPET could barrier moisture;
- second with shinning aluminum powder this film could reflect light; at last price of it is acceptable.