Has Uponor PEX tubing undergone extensive testing?
Yes, Uponor PEX has undergone 35 years of rigorous testing. In 1973, Uponor (then Wirsbo), submitted PEX tubing samples to an independent laboratory. For three decades, these samples underwent continuous hydrostatic tests at extreme temperatures and pressures — up to 203åF and 239 pounds per square inch. When the 30-year life cycle tests were concluded recently, not a single piece of Uponor PEX had experienced any breakdown or failure.
