Widely used medium barrier thermoform blister-films.
Widely used medium barrier thermoform blister-films PVC/PVdC Transparent Films
PVdC coated PVC films give moisture barrier between approximately five to ten times greater than mono PVC alone.
PVdC coated films may be used on same thermoforming equipment as used for mono PVC.
Formed blisters using PVdC coated PVC films are stand alone and typically do not need aluminum foil over wrapping and depending on type and climate-zone can give up to two years shelf life for packed tablets or capsules. This packaging method also is more barrier-friendly to the medication as once an aluminum over-wrap has been opened once, all barrier properties are lost while an individually packaged PVC blister keeps each tablet barrier-protected in its own individual "pocket".