As described before, polyethylene is applied like a coating over the paperboard to provide a moisture barrier and aid sealing. The selection of adhesive is dependent upon the specific requirements of your packaging software, such as the form of products becoming bonded, the manufacturing speed, along with the environmental ailments. https://www.tumblr.com/sustainablemilkcartons/772206674346917888/sustainable-water-packaging-reducing-plastic?source=share