Rubber silicone mai zafi mai zafi{0}, wanda aka gajarta da HTV, ana kuma san shi da zafi{1}} roba silikon vulcanized ko robar siliki mai ƙarfi. Tushen polymer ɗinsa yana da girma{3}} kwayoyin - polysiloxane madaidaiciya (yawanci polydimethylsiloxane), tare da nauyin kwayoyin halitta yawanci jere daga 400,000 zuwa 800,000.
A cikin ɗanyen yanayin robansa, yawanci yana bayyana azaman ɗan ƙaramin fari mai ɗanɗano ko fari (kamar fili na roba, ɗanyen roba, toshe roba, da sauransu) kuma yana da babban roba.
Vulcanization (warkewa) dole ne a gudanar da wani in mun gwada da high zafin jiki (yawanci tsakanin 110 digiri da 180 digiri , ko ma mafi girma), na bukatar aikace-aikace na matsa lamba da kuma wani lokacin vulcanization (jere daga 'yan mintoci zuwa dubun minti). Yawancin lokaci ana yin wannan tsari a cikin kayan aiki kamar gyare-gyare, extrusion da calendering.