Polyethylene Coating: A Skinny layer of polyethylene on either side gives toughness. The outer layer shields the design and printing, even though the internal layer acts as being a sealant, creating the carton totally leakproof. Now we can easily put a WINDOW inside of a Gable-Prime that contains dry ingredients https://recyclablegabletopcartons.blogspot.com/2025/08/green-future-in-every-sip-eco-water.html