Irabha ye-silicone enezinga eliphezulu-yokushisa, efushanisiwe njenge-HTV, yaziwa nangokuthi ukushisa-irabha ye-silicone ephukile noma irabha ye-silicone eqinile. I-polymer yayo eyisisekelo iphezulu-i-molecular-yesisindo somugqa we-polysiloxane (imvamisa i-polydimethylsiloxane), enesisindo se-molecular ngokuvamile esisukela ku-400,000 kuya ku-800,000.
Esimeni sayo senjoloba eluhlaza, ngokuvamile ibonakala njengeqinile-esobala noma i-milky emhlophe (njengenhlanganisela yerabha, umucu wenjoloba eluhlaza, ibhulokhi yerabha, njll.) futhi inepulasitiki ephezulu.
I-Vulcanization (ukwelapha) kufanele yenziwe ngezinga lokushisa eliphakeme kakhulu (imvamisa ephakathi kuka-110 ne-180 degree, noma ngaphezulu kwalokho), edinga ukusetshenziswa kwengcindezi kanye nesikhathi esithile sokuvuvukala (kusukela emizuzwini embalwa kuye emashumini emizuzu). Le nqubo ivame ukwenziwa emishinini efana nokubumba, i-extrusion kanye ne-calendering.