Ukuvalwa kwephakethe lebhethri kuyisihluthulelo sokuqinisekisa indawo eyomile yangaphakathi yebhethri nokuvimbela ukuvuza kwe-electrolyte.
Umkhiqizi othile webhethri yesitoreji samandla uthuthukise-ubuchwepheshe bokubumba izingxenye ezimbili ngokusekelwe kurabha ye-silicone enegwebu ewuketshezi ukuze kuhlanganiswe ukuvala amaphakethe ebhethri.
Le silicone yakha ungqimba oluqinile futhi oluguquguqukayo lokuvala ngemva kokuphulukiswa, olungavumelanisa nokwandiswa kwevolumu okubangelwa ukushintsha kwezinga lokushisa, ukuvimbela ngokuphumelelayo ukungena komswakama wangaphandle kanye nokuvuza kwegesi kwangaphakathi, futhi kuthuthukise kakhulu ukuthembeka nokuphepha kwebhethri ngaphansi kwezimo zezulu ezihlukene.