Polyethylene Coating: A Thin layer of polyethylene on both sides offers toughness. The outer layer guards the look and printing, whilst the inner layer functions to be a sealant, generating the carton completely leakproof. Now we could place a WINDOW in a very Gable-Top which contains dry substances – so https://wateringabletop.home.blog/2025/06/09/innovating-sustainability-with-eco-friendly-packaging-for-water-and-beyond/