... to PET, PEN chips can be used to produce films, fibre, food/drink containers, and sheets. PEN stands for polyethylene naphthalate ... to PET, PEN chips can be used to produce films, fibre, food/drink containers, and sheets. Batch codeIV(dl/g)Melting ... gas barrier- More chemically stable- Heat, UV and radiation resistantFilms, fibre, bottles and modified plastics PEN chips