Ko tenei riipene hiri butyl he mea hanga mai i te rapa butyl na roto i te tukatuka motuhake, te matotoru me te taumaha, kaore he paitini, karekau he whakaheke, he anti-pahekeheke, he hiri, he parewai, he teitei me te iti o te pāmahana, te aukati ahi, te whakamaarama, te aukati matū me te aukati UV, a he pai ake te hua hiri me te waa mahi roa.