Ipayipi lokufakelwa kwe-PE libizwa nangokuthi ipayipi lokuvikela langaphandle le-PE, ipayipi lejakhethi, ipayipi lomkhono. Ipayipi lokufakwa kwe-polyurethane eligqitshwe ngokuqondile lenziwe ngepayipi lokufakwa kwe-HDPE njengongqimba olungaphandle oluyisivikelo, igwebu eliqinile le-polyurethane eligcwele phakathi lisetshenziswa njengongqimba lwempahla yokufaka, kanti ungqimba lwangaphakathi yipayipi lensimbi. Ipayipi le-polyure-thane elingcwatshwe ngokuqondile linezinto ezinhle zemishini kanye nokusebenza kokushisa okushisayo. Ngaphansi kwezimo ezijwayelekile, ingamelana nezinga lokushisa eliphezulu lika-120-180 °C, futhi ifanelekela amaphrojekthi ahlukahlukene abandayo nashisayo abandayo nashisayo amapayipi okushisa aphansi naphansi.