The resilient APET (amorphous polyethylene terephthalate) is highly transparent, has a very good barrier value against both steam and gas and is resistant to oils and fats.
The non-crystallizing variant, PETG, also remains crystal-clear at very high reshaping temperatures and allows very high forming sharpness.
Due to the good sealing properties, PETG, i.e. a multi-layer foil (PETG-APET-PETG abbreviated G-A-G) is used for this.
PETG can be employed in a temperature range of -40° C to +70°

Seal blisters, medical and pharmaceutical packaging