As pointed out before, polyethylene is used as a coating around the paperboard to provide a humidity barrier and facilitate sealing. The choice of adhesive depends on the specific needs of the packaging application, including the form of elements becoming bonded, the creation pace, plus the environmental problems. For items https://wateringabletoppak.family.blog/2025/08/26/water-in-sustainable-pak-eco-packaging-that-protects-the-planet/