Household plumbing systems use PEX for pipes to supply water and carry away sewage. The term PEX stands for "crosslinked polyethylene." PEX piping is manufactured by melting high-density polyethylene ...

Springfield, Mo.-based United Poly Systems LLC is extruding a new line of HDPE pipe in the same sizes as traditional copper tubes and iron pipes for a range of applications, particularly water uses.

Plastics like CPVC deliver reliable, long-term, leak-free performance—as long as they have been installed and maintained ...

Researchers at Villanova University in Philadelphia have completed a study of the performance of recycled-content corrugated, high-density polyethylene (HDPE) resin in commuter rail installations, ...