Polyethylene Coating: A skinny layer of polyethylene on each side provides toughness. The outer layer shields the look and printing, when the interior layer functions to be a sealant, creating the carton wholly leakproof. Gabletop Pak cartons are engineered to offer flexibility and Extraordinary protection for several different packaging purposes. https://share.evernote.com/note/a33f5123-cae0-0d4e-0d4f-ed5a266a57f8