Tsvaga zvinhu zvishanu zvinonyanya kufungwa nezvazvo pakusarudza hydroxypropyl methylcellulose (HPMC) yekubatanidza mataira, kusanganisira kusimba, kuchengetedza mvura, uye kuramba kutsvedza, kuti uve nechokwadi chekuti kubatana kwacho kwakasimba uye kunogara kwenguva refu.