Mapaipi esimbi emukati nekunze akavharwa nepurasitiki anogadzirwa nekunyungudutsa chidimbu chepolyethylene (PE) resin, ethylene-acrylic acid copolymer (EAA), epoxy (EP) upfu, uye isiri-chepfu polycarbonate ine ukobvu hwe0.5 kusvika 1.0mm pamadziro emukati wepombi yesimbi.Iyo simbi-yepurasitiki inoumbwa pombi inoumbwa nezvinhu zvakasimukira senge propylene (PP) kana isiri-chepfu polyvinyl chloride (PVC) haina chete zvakanakira simba repamusoro, kubatanidza nyore, uye kuramba kuyerera kwemvura, asi zvakare inokunda ngura yesimbi. mapaipi kana aiswa mumvura.Kusvibiswa, kuyera, kusimba kwakaderera kwepombi dzepurasitiki, kusashanda kwekudzivirira moto uye kumwe kukanganisa, hupenyu hwekugadzira hunogona kusvika kumakore makumi mashanu.Chinhu chikuru chinokanganisa ndechekuti haifanirwe kukotama panguva yekuiswa.Munguva yekupisa kwekupisa uye kucheka kwemagetsi welding, nzvimbo yekucheka inofanirwa kuvezwa neiyo isiri-chepfu yakajairika tembiricha yekurapa glue inopiwa nemugadziri kugadzirisa chikamu chakakanganisika.