View source for High-density polyethylene

'''High-density polyethylene''' (HDPE) or polyethylene high-density (PEHD) is a polyethylene thermoplastic made from petroleum. It is sometimes called "alkathene" or "polythene" when used for pipes.

== Description ==

With a high strength-to-density ratio, HDPE is used in the production of plastic bottles, corrosion-resistant piping, geomembranes, and plastic lumber.

HDPE is commonly recycled, and has the number "2" as its resin identification code (formerly known as recycling symbol).

In 2007, the global HDPE market reached a volume of more than 30 million tons.

== See also ==

* [[Injection molding]]
* [[Low-density polyethylene]]
* [[Computer numerical control (CNC)]]

== External links ==

* [https://en.wikipedia.org/wiki/High-density_polyethylene High-density polyethylene] @ Wikipedia

[[Category:Injection molding]]
[[Category:Materials]]