Tepi ya PTFE yotentha kwambiri imafuna kusungidwa koyenera kuti ikhale yomatira, kusinthasintha, ndi kutulutsa ntchito. Zofunikira zazikulu ndi kuwongolera kutentha (10-30 ° C), chinyezi chochepera 60%, kupewa kuwala, kudzipatula kwamankhwala, kuyika molunjika, ndi mpweya wabwino. Tsatirani kasamalidwe ka FIFO ndikuwunika pafupipafupi.