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Brief Introduction For Products: Induction sealing is a non-contact heating process by which a foil disk or "seal" is bonded to a container. This unique process accomplishes the hermetic sealing of a container. It is applied to most styles containers. Integrated Seal. Leak Proof. Increases Shelf Life. Enhances Customer's Confidence.Application: Various plastic (LDPE, HDPE, PP, PVC, PET,ABS, PS), glass container with screw type cap. One-Piece Induction Seal Liner: After induction providesa foil / heat-seal laminate hermetically sealed to the lip of acontainer. No secondary liner is left in closure. Two-Piece Induction Seal Liner: After induction provides a foil / heat-seal laminate hermetically sealed to the lip of a container. The secondary liner is left in closure.