Zafin daki vulcanized silicone robar, wanda aka rage shi azaman robar zafin daki, shine elastomer na organosilicon wanda ya fito a cikin 1960s. Babban abin lura na wannan roba shine cewa yana iya warkewa a cikin ɗaki ba tare da dumama ko matsi ba, yana sa ya dace sosai don amfani. Saboda haka, ya ci gaba da sauri tun lokacin da aka gabatar da shi. Kamar robar zafi mai girma -, daki{5}}zazzabi vulcanized silicone robar shima yana kunshe da robar tushe, ƙarfafa filaye, ma'aikatan haɗin gwiwa, masu ƙara kuzari da sauran abubuwan ƙari. Nauyin kwayoyin halitta na polymer da aka yi amfani da shi azaman manne tushe ya yi ƙasa da na polymer da ake amfani da shi don yin manne mai zafi mai girma -. Dangane da dabarar, za a iya yin ɓarnar ɗaki{9}} roba mai zafin jiki ta hanyar datsewa/rushewa ko ƙarin halayen ƙungiyoyi masu aiki.
Dangane da tsarin amsawar vulcanization, ɗakin - za a iya raba robar zafin jiki zuwa nau'ikan roba da ƙari, kuma bisa ga marufi da sigar ajiya, ana iya raba shi zuwa guda ɗaya{1}}bangaren da biyu{{2}nau'in ɓangarori. Ɗaya-ƙasashen zafin ɗakin daki mai ɓarna robar nau'in nau'in na'ura ne, yayin da guda biyu{5} robar zafin ɗaki yana da nau'i biyu: nau'in ƙura da ƙari.