Den ene side består af en ethylen copolymer (inderlag), en aluminiumsfolie, LPDE- film og papir; den anden side består af polyethylen (inderste lag), aluminium, ethylen copolymer og papir.
One side is composed of an ethylene copolymer (innermost layer), an aluminium foil, low density polyethylene film and paper; the other side is composed of polyethylene (innermost layer), aluminium, ethylene copolymer and paper.