Dialysis Membranes As a critical component in flexible packaging, the lidding film must perform flawlessly. Our raw material compound is a multi-layer co-extrusion grade, often consisting of a sealant layer, a barrier layer, and an outer print layer. This sophisticated structure allows it to provide not only an impeccable heat seal but also outstanding barrier properties against gases and moisture. The material is processed to have low odor and low extractables, which is crucial for sensitive applications like medical device packaging and high-quality food products.