introduction to the coating of aluminum laminated film 2-PET Layer

PET, is the abbreiviation of Polyester, PET layer is usually applied as the top layer of the coatings of aluminum laminated film as well.

PET layer has pros such as good sealing which can prevent the corruption from the air or other external environment. 

It also contains high tensile strength and mechanical strength. PET layer also has strong chemical and heating resistance.

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