Some products require a foam liner to be placed inside the bottle cap. After opening the

A vented seal is essentially a foam gasket or induction liner with a vent hole punched

A pressure seal utilizes flexible materials such as foamed plastics (PE/PP/PS/EVA) or silicone sheet as liner.

Conduction seal involves directly heating the sealing film and the container mouth with the heating header

Induction sealing is a non-contact heating method where the sealing liner does not directly touch the