The water vapor permeability of plastic films is a basic property of film packaging. Especially in the packaging area, e.g. to protect dry products from moisture or to prevent moist products from drying out.
The permeability of polyethylene depends on the base materials used. For example, a plastic film made of high-density PE-HD polyethylene has a permeability of approx. 0.4g/m² at 100 µm, while low-density PE-LD polyethylene has a value of approx. 1g/m².
What is the oxygen permeability of PE ?
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