ʻO kēia mau pahu polyprotolene i nā hiʻohiʻona e hōʻailona ana i nā hiʻohiʻona maikaʻi a hāʻawi i ka pale umauma maikaʻi me nā maʻi maʻi, alkalis, a me nā lole a me nā lole. Hōʻikeʻia nā pale alpophylene i ka hopena o ka hopena maikaʻi, kumukūʻai kūponoʻole, a me ka piability. Ua kūʻai akuʻo Septa i kahi hoʻokaʻawale'ole.POlyPylene i ka lua i loaʻa i nā caps i loaʻa iā SEPTA a iʻole ka septa. Ua hōʻike pū mākou i nā pani polyprotlene i nā paniʻana me SPPTA e hāʻawi i ka hōʻoia e hāʻawiʻole i ka SEPTA i kahi iʻole e kāpaeʻia.