Polyethylene Coating: A skinny layer of polyethylene on each side delivers toughness. The outer layer safeguards the look and printing, although the inner layer acts as a sealant, creating the carton wholly leakproof. The primary patents for food items paperboard containers date back to the beginning of the final century. https://gablecarton.art.blog/2025/10/09/gable-top-pak-eco-friendly-gable-top-cartons-and-sustainable-packaging-solutions/