Silicone O-ring ndi mtundu wa chisindikizo chomwe chimapangidwa kuchokera ku zinthu za silicone elastomer.O-ringing adapangidwa kuti azipereka chosindikizira cholimba, chosadukiza pakati pa magawo awiri osiyana, oima kapena osuntha.Amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana, kuphatikiza magalimoto, ndege, zamankhwala, chakudya ndi zakumwa, chifukwa cha kukana kwawo kutentha kwambiri, kukana mankhwala, komanso kutsika kwapang'onopang'ono.Silicone O-rings ndi yothandiza kwambiri pazitsulo zotentha kwambiri zomwe mitundu ina ya o-mphete sizingakhale yoyenera.Amakhalanso osagwirizana ndi kuwala kwa UV ndi ozoni, kuwapanga kukhala abwino kwa ntchito zakunja.Mphete za Silicone O-rings zimapezeka mumitundu yosiyanasiyana, mawonekedwe, ndi mitundu, ndipo zimatha kusinthidwa kuti zigwirizane ndi zosowa zenizeni zosindikiza.