Metallic packaging jumps off the shelf

Metallized film comes in three main materials: PET, OPP, and OPA. Metallized PET, an oxygen barrier, is used for products with aroma issues such as coffees. It is very thermally stable, Roy said, and can be run at high production speeds without deforming or melting.

Metallized OPP is a moisture barrier and is applied most often as snack foods and candy packaging. It is the least expensive of the three.