CAPS yeScrew Thread vials inowanikwa negomba rakavhurika rehunhu hwekutadza uye kuwedzerwe nekuwedzera kana neyakagadzirirwa sampula yekuchengetedza. Teflon uye Silicone Rubber kana Ultra-yakachena silicone inoshandiswa seyakagadzirwa zvinhu kuti ive nechokwadi chekuti Septa haina chepfu; Kuve nechokwadi chekuita zvakanaka, zvinonyanya kukodzera gasi chromatography, uye kuve nechokwadi chekuti Septum haina kuwira mumuenzaniso mumuenzaniso panguva yekuita jekiseni.
Iyi polypropylene caps ine hunhu hwakanaka hwekuramba uye kupa makemikari ekurwisa kusanganisira acids, vaipengenha, Alkalis, zvigadzirwa zvemukati, zvigadzirwa, uye mafuta emumba, uye mafuta emumba, uye oiri yemhuri. Polypropylene Holy Caps anozivikanwa nekuda kweKwakanaka kukanganisa simba, mutengo unobudirira, uye hutongi. Septa inotengeswa akaparadzaniswa.Prollpropylene Holy Caps inowanikwa yakakanganisika neparutivi Septa kana pasina Septa. Isu tinoratidzawo polypropylene hole kuvharwa neSepto akasungwa seSepta kuti ape kuti Septa haazopukunyuke kubva pamapepa ekupinda.