Metallized PET Film Sealant Layer Selection

Metallized PET Film supplies a reflective barrier layer, but it should not be treated as the heat-seal layer of a pouch. The sealant must be selected around filling temperature, seal window, product contact and package handling.

A Metallized Film Supplier needs the current laminate, pouch style, sealing equipment and storage conditions. This information helps separate a metallized-layer issue from a sealant or adhesive problem.

Define the Seal Requirement

Record jaw temperature, dwell, pressure, line speed and any contamination at the seal. PE and CPP sealants can behave differently, so the choice must follow the actual packing line rather than a generic structure.

Protect the Metallized Interface

Confirm which side receives adhesive and prevent hard folds or roller damage before curing. A strong seal cannot compensate for delamination or a damaged barrier layer.

Test the Finished Pouch

Compare seal strength, leakage, barrier and appearance after filling and distribution simulation. Send Cailong the film grades, adhesive, sealant and failed-pouch location.