Ityhubhu yangaphakathi yonyango enemigangatho emithathu esiyivelisayo ikakhulu yenziwe yi-PEBAX okanye i-nayiloni yangaphandle, i-linear low-density polyethylene middle layer kunye ne-high-density polyethylene yangaphakathi. Sinokubonelela ngezinto zangaphandle ezineempawu ezahlukeneyo, ezibandakanya i-PEBAX, i-PA, i-PET kunye ne-TPU, kunye nezixhobo zangaphakathi ezineempawu ezahlukeneyo, ezifana ne-polyethylene ephezulu. Ewe kunjalo, sinokwenza ngokwezifiso umbala wetyhubhu yangaphakathi enemigangatho emithathu ngokweemfuno zemveliso yakho.