Polyethylene Coating: A thin layer of polyethylene on both sides gives sturdiness. The outer layer safeguards the look and printing, while the interior layer acts like a sealant, making the carton totally leakproof. This method enables the manufacture of long-lasting shelf items in a method exactly where Tetra Pak cartons https://wateringabletop.water.blog/2025/10/09/sustainable-water-in-carton-packaging-100-percent-eco-friendly-gable-top-boxes/