He maha nga rereketanga i waenga i te butyl me te rapa maori. Ko te rapanga Butyl he elastomer tuuturu e mohiotia ana mo ana waahi hiri pai, te ātete matū, me te ngawari. He iti hoki te hau o te hua, he pai te hau, me te ātete pai. Te Whakawhiwhinga o te Ozone, Te Whakawhiwhinga Matū, Te Whakanoho, Te Whakawhiwhinga Motuhake, Te Whakawhiwhinga Whakawhiwhi, Te Whakahekenga Te Whakawhiwhinga, Te Whakawhiwhinga pūngao, me etahi atu ahuatanga.