Nui nāʻanoʻokoʻa ma waena o ka butyl a me ke aniani kūlohelohe. ʻO Butyl Rubber kahi mea elastomer setnthetic iʻikeʻia no kāna mau mea ala kiʻekiʻe loa, e kū ana ke kaheʻana, a me ka maʻalahi. ʻO ka huahana kahi mea haʻahaʻa haʻahaʻa haʻahaʻa, a me ka maikaʻi maikaʻi, a me ke kū'ē maikaʻi. ʻO Ozone ke kū'ē, ke kū'ēʻana i keʻano o ke kahe, ka uila uila, e hoʻopili ana i keʻano o ka paleʻana, e pili ana i ke kū'ēʻana, a me nā hiʻohiʻona'ē aʻe.