Incompressibility: hluavtaws roj hmab zoo li cov kua yuav hloov tau nws cov duab, ntawm chav kawm, nws yog tsis yooj yim sua kom ntws, thaum lub nyem nyem yuam kom nws deform ploj, nws muaj peev xwm rov qab mus rau lub qub duab (uas yog hais tias, lub gasket nyob rau hauv lub cev. cov txheej txheem compression ntawm nws qhov ntim tseem tsis hloov pauv, qhia txog qhov loj ntawm qhov hloov siab).
Lub zog: nws yuav tsum muaj lub zog txaus los tiv thaiv lub siab extrusion uas coj nws mus rau hauv lub xeev sealing thiab tiv taus cov kua nruab nrab siab (piv txwv li lub cev muaj zog xws li tensile lub zog thiab lub zog tensile ntawm cov roj hmab gasket).
Plasticity: los ntawm kev kho cov mis, kom nws tuaj yeem ua tiav ob lub zog txaus kom tau raws li kev siv, tab sis kuj muaj cov yas txaus, kom nws tuaj yeem nyob rau hauv qhov tsim nyog siab thiab cov hlau nto ze ntawm cov hlau nto, thiaj li tsim tau ib qho sealing muaj nuj nqi (gasket puab thiab sealing phaj zawj puab kom ua tau zoo sib xws).
Kev nkag mus tsis tau: lub polymer peb-dimensional network qauv ntawm hluavtaws roj hmab tuaj yeem tiv taus cov tshuaj sib txawv ntawm cov kua dej nkag (media resistance).
Kub-resistant: roj hmab hauv cov ntaub ntawv polymer muaj qhov tsis zoo uas ua rau tag nrho cov khoom siv roj hmab hluavtaws tuaj yeem tiv taus qhov kub thiab txias tsuas yog nyob rau hauv qhov qis qis. Yog li ntawd nws yog ib qho tseem ceeb uas cov formulation ntawm cov khoom yog ua tib zoo xaiv raws li qhov kub thiab txias yuav tsum tau rau daim ntawv thov.
Kev pab lub neej: Ntau yam ntawm cov khoom siv hluavtaws tshiab yog cov yam ntxwv ntawm lub neej kev pabcuam ntev dua piv rau cov qauv qub, vim yog siv cov khoom siv tshiab ntxiv uas txuas ntxiv rau kev pabcuam lub neej. Hauv qhov no, qhov kev xaiv raug ntawm cov khoom siv hluavtaws yog qhov tseem ceeb heev, txhua yam khoom siv roj hmab raws li cov khoom siv hluavtaws yuav tshwm sim los ntawm kev ntxhov siab, nyob rau hauv tus txheej txheem ntawm kev siv, vim yog cov tshuaj hloov pauv hauv cov khoom siv hluavtaws, thawj zaug sealing muaj nuj nqi yuav maj mam poob, thiab thaum lub sealing kev ua tau zoo qis dua qhov kev txwv ntawm **, leakage yuav inevitably tshwm sim.
