With a share of nearly 15 % polyethylene is considered a mass plastic resin.
However, there are different polyethylene (PE)-types available.
One of them is called LDPE, where LD stands for low density.

In it’s molecular structure the high branched polymer chains lead to a low density between 0.915g/cm³ and 0.935 g/cm³.
Through the material’s flexibility and corrosion resistance, it can be used in many ways.
As an example, LDPE is used for the production of different containers, but most commonly for plastic bags.
In juice or milk cartons LDPE is needed as barrier film for waterproofness.

LDPE in Injection Molding

Plastic: Lid out of LDPE for the usage in the kitchen.

Related topics:

This glossary of plastic industry is provided by PLEXPERT Canada Inc.
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