Impushana yensimbi etholakala ngosayizi abahlukene bezinhlayiyana ezenziwe ngezinto ezihlukene, njenge-nickel, i-chromium, i-silicon, iManganese inamandla aphezulu kanye nokuzinza kwamakhemikhali aphezulu njengemidiya yokuhlunga ngesikhathi sokuphotha kwe-polyester ne-polyamide.Isihlabathi sensimbi engagqwali i-Futai sinomumo ongavamile owengeziwe onezici eziningi ezingaphezulu ukuze uthwebule ngempumelelo futhi ugcine izinhlayiya ezivela ku-polymer encibilikisiwe ukuze kuncishiswe i-clog yama-spinnerets nokuphuka kwentambo.
Ukukhethwa kwezimpushana zensimbi engagqwali zokuhlunga kwe-polymer kufanele kucabangele izici ezinjengokuhambisana nempahla ye-polymer, ububanzi bezinhlayiyana ezifunekayo, ukusebenza kahle kokuhlunga, nanoma yiziphi izidingo zamakhemikhali noma zemvelo.