Tepi yowola ndi yosiyana ndi yachikhalidwe ya pulasitiki.Zimatengera filimu ya cellulose ndipo yokutidwa ndi zomatira zotengera madzi zomwe zimakhudzidwa ndi kupanikizika kwamadzi opangidwa ndi butyl acrylate ndi rosin resin, zomwe zingakhale zokonda zachilengedwe, zobwezeretsedwanso komanso compostable.Kugwiritsa ntchito tepi ya Baokai yowoneka bwino yosawonongeka sikungawononge chilengedwe, chifukwa ndi matepi otha kubwezeretsedwanso okhala ndi ziro.