Silicone rubber polymer molekules ni urunigi - nkuburyo bwakozwe na Si - O (silicon - ogisijeni), kandi ibyingenzi byingenzi ni polarike nini cyane ya polysiloxane. Kuberako Si - O - Si ni ubwoko bwibanze bwibanze, atome ya silicon ihujwe ahanini nitsinda rya methyl, kandi umubare muto cyane wamatsinda atuzuye atangirwa kumurongo wuruhande.
Imbaraga za intermolecular ni nto, kandi molekile zifite imiterere ihindagurika. Amatsinda ya methyl atunganijwe hanze kandi arashobora kuzunguruka mubwisanzure, bigatuma reberi ya silicone ifite imbaraga zo kurwanya ubushyuhe bwiza, kubika amashanyarazi, gutuza imiti, nibindi kuruta ibindi bisanzwe.
Rubber isanzwe ya silicone, ni ukuvuga polydiformaldehyde siloxane, ifite imiterere ya molekuliyumu ihindagurika hamwe nimbaraga ntoya ugereranije, bityo ikagira imbaraga zo kwihangana. Hagati aho, amatsinda ya fordehide yerekana hanze ya helix arashobora kuzunguruka mu bwisanzure, butanga reberi ya silicone ifite imiterere yihariye nka hydrophobicity hamwe nubutaka butari - gukomera