Kev tiv thaiv rau cov kua qaub muaj zog, alkalis thiab cov kuab tshuaj organic yog ib qho tseem ceeb ntawm PTFE Teflon hoses, uas tuaj yeem thauj tau yuav luag tag nrho cov kua dej tawm; siab kub tsis kam - ntev siv kub 200-260 degrees, tsis kub tsis kam - tseem mos ntawm -100 degrees; corrosion kuj - resistant rau aqua regia thiab tag nrho cov organic solvents, huab cua tsis kam - lub neej zoo tshaj plaws ntawm cov yas; siab lubricity - muaj qhov sib txhuam me tshaj plaws ntawm cov yas (0.04), tsis nplaum - muaj qhov tsawg tshaj plaws ntawm qhov nro ntawm cov khoom siv thiab tsis ua raws li cov khoom siv.