Cov ntaub ntawv tseem ceeb rau PEX yeeb nkab ntau lawm: Cov ntaub ntawv tseem ceeb rau PEX yeeb nkab ntau lawm yog polyethylene, nrog rau cov neeg pib, cov neeg sib txuas sib txuas, cov khoom siv hluav taws xob thiab lwm cov koom haum. Lwm cov kev hloov kho tuaj yeem ntxiv yog tias muaj cov cai tshwj xeeb. PEX yeeb nkab yog tsim los ntawm lub ntiaj teb no tus txheej txheem ib-kauj ruam (MONSOIL txoj kev) tshuab, siv cov khoom siv zoo tib yam polyethylene los ntxiv silane grafting cov ntaub ntawv los tsim cov tshuaj covalent bonds ntawm polymer macromolecular chains los hloov cov qub qub, yog li tsim peb-seem ntoo khaub lig. -linking Tus ntoo khaub lig-txuas polyethylene nrog cov qauv network muaj qhov sib txuas ntawm kev sib txuas ntawm 60 feem pua rau 89 feem pua, uas ua rau nws muaj lub cev zoo thiab tshuaj lom neeg.
