Amapayipi ensimbi ambozwe ngepulasitiki angaphakathi nangaphandle enziwa ngokuncibilikisa ungqimba lwe-polyethylene (PE) resin, i-ethylene-acrylic acid copolymer (EAA), i-epoxy (EP) powder, kanye ne-polycarbonate engenabuthi enogqinsi luka-0.5 kuya ku-1.0mm odongeni lwangaphakathi lwepayipi lensimbi.Ipayipi eliyinhlanganisela yensimbi nepulasitiki elakhiwe ngezinto eziphilayo njenge-propylene (PP) noma i-polyvinyl chloride engeyona enobuthi (PVC) aligcini nje ngokuba nezinzuzo zamandla aphezulu, ukuxhumana okulula, nokumelana nokugeleza kwamanzi, kodwa futhi linqoba ukugqwala kwensimbi. amapayipi lapho evezwe emanzini.Ukungcola, ukukala, amandla aphansi amapayipi epulasitiki, ukusebenza okungekuhle kokucisha umlilo nokunye ukushiyeka, impilo yokuklama ingaba yiminyaka engama-50.Okubi okuyinhloko ukuthi akufanele igobe ngesikhathi sokufakwa.Ngesikhathi sokucubungula okushisayo kanye nokusika kwe-welding kagesi, indawo yokusika kufanele ipende nge-glue yokushisa evamile engavamile yokushisa ehlinzekwa umenzi ukulungisa ingxenye eyonakele.