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Cross-Linked Polyethylene (XLPE or PEX)

Polyethylene that, by cross-linking via irradiation of linear polyethylene with an electron beam or gamma radiation, or with a chemical cross-linking agent, such as benzoly peroxide, is made to be a non-toxic thermosetting (remaines solid upon heating) white solid with superior strength and durability, high temperature and pressure resistance, and inertness toward chemical attack and corrosion. Cross-linked polyethylene pipe and tubing is accepted by many plumbing codes for potable water distribution with buildings. It is flexible (bend radii of six times or greater the outside pipe/tubing diameter) and can be used in place of polybutylene (PB) water pipe. See Also: XPLE or PEX XPLE or PEX Plastic Pipe Polyethylene Polypropylene