Mapampu ndi oyenera ntchito zosiyanasiyana ndipo amapangidwira kukana kuthamanga kwamphamvu, kutsika kwamphamvu kwamphamvu komanso ntchito yabata bushang imapereka mawonekedwe apamwamba kwambiri opangidwa makonda ndi mapangidwe ake mu NBR, HNBR, VITON ndi PTFE pamapampu osiyanasiyana. Kutengera kukula kwa mawonekedwe, kutentha kwa ntchito, malo ogwiritsira ntchito, sing'anga yosindikiza, kusindikiza kusindikiza, kuthamanga kwachangu ndi njira yoyika, bushang imapereka mayankho osindikizira a pampu kuphatikiza zisindikizo zamafuta, mphete zosiyanasiyana, ma gaskets ndi magawo ena a rabara a elastomer.