homopolymer polypropylene yii jẹ apẹrẹ fun awọn ohun elo ti o nilo resistance to dara si idinku gaasi, pẹlu raffia aṣoju, awọn ohun elo okun/owu pẹlu awọn aṣọ ile-iṣẹ hun ati awọn baagi, okun ati okun, atilẹyin capeti hun, ati awọn aṣọ geotextile hun.