ʻO ka Butyl Rubber Stoppper he keʻokeʻo keʻokeʻo keʻokeʻo-keʻokeʻo e like me ka paʻa me kahi density o 0.92g \ / cm3. He meaʻole, kūlikeʻole i ka wai, a hoʻomāhele i laloʻo Hexane a me Clororofomor. ʻO ka huahana kahi mea haʻahaʻa haʻahaʻa haʻahaʻa, a me ka maikaʻi maikaʻi, a me ke kū'ē maikaʻi. ʻO Ozone ke kū'ēʻana, ke kū'ēʻana i ke kūleʻa, estrical insulation, endrical insulation, hoʻololi i ke kū'ēʻana, e wela ana i ka ikaika.