O-ring sigilan bɛ kɛ masinw na, kurunw, mobili, sanfɛla minɛnw, nɛgɛso masinw, kemikɛli masinw, ɛntɛrinɛti masinw, jɔli masinw, minɛnko masinw, petoroli masinw, plastiki masinw, sɛnɛ masinw, ani minɛn suguya caman ni mɛtɛrɛ suguya caman, a caman bɛ kɛ ni sigilan suguya caman ye. O-ring sigilanw tulu, asidi ani alkali, sɔgɔli, kemikɛli ani sigida wɛrɛw la, olu bɛ sigili ɲuman kɛ hali bi, sɔgɔsɔgɔninjɛ.

Ladilikan: EPDM faralen ,CR faralen,FKM faralen,HNBR faralen.
EPDM: S552;S552-1;S512F;TER 4049;TER 4047;TER 4039;TER 4038EP;J-3092E;J-3080;J-3080P
CR: SN232;CR111;CR112;CR211;CR212;CR213