Izicabha zomlilo wensimbi zenziwe ngensimbi yekhwalithi ephezulu, ekwazi ukumelana nomthelela futhi iqine ngokwesakhiwo ukumelana nemithelela yesikhathi eside. Ukubukeka komnyango womlilo wensimbi wokwelapha wokufafaza nge-electrostatic anti-flammable, anti-theft, muhle futhi uhlala isikhathi eside.