A4 sample of PET coating 40 g/m², printed in 4 C offset on Invercote G 300 g/m².
Paperboard with polyethylene terephthalate (PET) coating is suitable for packaging applications where the fat barrier and temperature resistance are important. It is amorphous and sealable.
At temperatures around 70°C it is transformed successively to a partly crystalline state with a melting point of approximately 260°C. This means that the heat sealing properties of the package will deteriorate when heated. It can be used for food products that are cooked in the pack and/or reheated in a microwave or conventional oven.