* Trays and general purpose containers

* Corrosion-resistant work surfaces

* Parts that need to be weldable and machinable

* Parts that require flexibility, for which it serves very well

* Very soft and pliable parts such as snap-on lids

* Six-pack rings

* Juice and milk cartons are made of liquid packaging board, a laminate of paperboard and LDPE (as the waterproof inner and outer layer), and often with of a layer of aluminium foil (thus becoming aseptic packaging).

* Packaging for computer hardware, such as hard disk drives, screen cards, and optical disc drives

* Playground slides

* Plastic wraps

* Plastic bags

* Plastic containers

* Pipes

* Housewares

* Battery cases

* Automotive parts

* Electrical components


Low-density polyethylene (LDPE) is a thermoplastic made from the monomer ethylene. It was the first grade of polyethylene, produced in 1933 by Dr John C. Swallow and M.W Perrin who were working for Imperial Chemical Industries (ICI) using a high pressure process via free radical polymerization. Its manufacture employs the same method today. The EPA estimates 5.7% of LDPE (resin identification code 4) is recycled in the United States. Despite competition from more modern polymers, LDPE continues to be an important plastic grade. In 2013 the worldwide LDPE market reached a volume of about US$33 billion.

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