View source for Cross-linked polyethylene (nonfiction)

[[File:PEX pipe in a basement.jpg|thumb|PEX pipe in a basement. Note the bend:  PEX is more flexible than copper.]]'''Cross-linked polyethylene''', commonly abbreviated '''PEX''', '''XPE''', or '''XLPE''', is a form of polyethylene with cross-links. 

It is used predominantly in building services pipework systems, hydronic radiant heating and cooling systems, domestic water piping, and insulation for high tension (high voltage) electrical cables. 

It is also used for natural gas and offshore oil applications, chemical transportation, and transportation of sewage and slurries. 

PEX is an alternative to polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC), or copper tubing for use as residential water pipes.

== In the News ==

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== Fiction cross-reference ==

* [[Gnomon algorithm]]
* [[Gnomon Chronicles]]

== Nonfiction cross-reference ==

External links:

* [https://en.wikipedia.org/wiki/Cross-linked_polyethylene Cross-linked polyethylene] @ Wikipedia


[[Category:Nonfiction (nonfiction)]]
[[Category:Materials (nonfiction)]]