Ngati kulemera, kuwonongeka, kuwonongeka kwapa, ndi \ / kapena zotayira za vial, zomwe zimapangidwa kuchokera ku polypropylene ndi njira inayake. Ubwino wa zinthu za polypropyylene umaphatikizapo mitengo yotsika yotsika, kulingalira ndi ma sodi osinthika, abwino pakugwiritsa ntchito ma cerotography preps, njira yabwino yosungira mafikitala.