Cov khoom siv tseem ceeb ntawm cov tsheb sib tsoo muaj xws li EPDM, uas yog cov khoom siv nrog huab cua zoo, tiv thaiv tshav kub, tiv thaiv ozone, thiab UV tsis kam, thiab yooj yim rau kev ua thiab cov duab. Ntxiv rau EPDM, lub tsheb sealing strips kuj tseem siv nrog polyvinyl chloride (PVC), tab sis nyob rau qee lub tebchaws thiab cheeb tsam, kev siv PVC ua cov hlua khi tau raug txwv lossis txwv tsis pub vim muaj teeb meem ib puag ncig thiab muaj feem cuam tshuam rau tib neeg kev noj qab haus huv. PVC.
Tsis tas li ntawd, kuj tseem muaj cov thermoplastic elastomers (TPE / TPV), uas tsis tas yuav vulcanization thaum lub sijhawm ua haujlwm thiab yooj yim kom ua tiav cov kev tswj xyuas ntu nrog cov pa phem tsawg. Txawm li cas los xij, lawv daim ntawv thov tam sim no raug txwv thiab feem ntau yog siv rau lub qhov rais sab strips thiab qhov rais qhia grooves
