Hydrogenated nitrile rubber (HNBR kumbe HSN) i vuhumelerisi bya hydrogenation na saturation ya carbon-carbon double bond eka molecular chain ya nitrile rubber, hikokwalaho yitlhela yivuriwa highly saturated nitrile rubber.

Fluoroelastomer i synthetic polymer elastomer leyingana ti athomo ta fluorine eka ti carbon atoms ta chain leyikulu kumbe side chain. Ku nghenisiwa ka ti athomo ta fluorine swinyika rhaba ku tiya swinene eka kuhisa, ku tiya ka oxidation, ku tiya ka oyili, ku lwisana na corrosion xikan’we naku lwisana na ku dyuhala ka xibakabaka, naswona yitirhisiwa ngopfu eka aerospace, aviation, automotive, petroleum na switirhisiwa swale kaya.

Ethylene propylene rhaba i rhaba yo endliwa leyi nga na ethylene na propylene tani hi monomer leyikulu, hi ku ya hi xivumbeko xo hambana xa monomer eka molecular chain, ku na binary ethylene propylene rubber(EPM) na tertiary ethylene propylene rubber(EPDM), Yi tirhisiwa ngopfu eka swiphemu swa mimovha, switirhisiwa leswi nga ngheniwiki hi mati eka ku aka, waya na cable sheathing, tihoyisi leti nga hisiki, tithepi, swisirhelelo swa timovha, swiengeteri swa mafurha na switirhisiwa swin’wana.

Zinc oxide i nchumu lowu nga riki wa ntumbuluko lowu nga na fomula ya tikhemikhali ya ZnO, oxide ya zinc. A yi khuluki ematini naswona yi khuluka eka ti acid na ti bases to tiya. Zinc oxide i xiengeteri xa tikhemikhali lexi tolovelekeke naswona xitirhisiwa ngopfu eka rhaba yo endliwa.