1. Lub cim nta saum npoo hluav taws xob nws tus kheej yog phaj tag nrho rau kev ua, flatness thiab hu ua nws zoo heev kub dissipation.
2. Kev Tawm Tsam Zoo Tam sim no, txhua yam ntawm lub tshuab ua haujlwm, cov khoom siv khoom siv no feem ntau siv hauv cov khoos phis tawj ua qhov ncaj qha rau kev siv cua sov, ua rau nws ua haujlwm ntau dua li nws cov khoom siv hluav taws xob tiv tauj tshav kub kom sov. Cia cov khoom siv hluav taws xob siv ntau dua kev ua haujlwm.
3 qhov tsis xws luag hauv cov txheej txheem txheej txheem ua cov thermoplastic ua rau cov khoom lag luam yooj yim rau deformation, qhov saum npoo yog yooj yim rau ntuj oxidation.