Le tape ye-butyl seal yenziwe ngerabha ye-butyl ngokucubungula okukhethekile, ukushuba nokusindayo, okungewona ubuthi, akukho ukufinyela, ukulwa nokuguga, ukuvalwa, ukuvalwa kwamanzi, ukumelana nezinga lokushisa eliphakeme neliphansi, into evimbela umlilo, i-insulation, ukumelana namakhemikhali kanye ne-UV, kanye inikeza umphumela wokuvala ongcono kanye nesikhathi sesevisi esihlala isikhathi eside.