Sheets and bags without a barrier, they can be printed on each face and contain accessories such as zippers; they may be used for temperatures as low as -18 degrees centigrade in normal freezing processes or individual quick freezing (IQF). Please enquire about temperatures below -18 degrees centigrade, given that the film formula will need to be adjusted to these new conditions. The thickness of the film will depend on the contents that are being packaged.