Geomembrane ndi imodzi mwazinthu zamtundu wa geomembrane.EVA ndi ethylene-vinyl acetate copolymer, yomwe ili ndi kusinthasintha kwabwino, kusinthasintha, kusinthasintha kwa nyengo, kukana kusokonezeka kwa chilengedwe ndi kugwirizanitsa ntchito.Zolemba zonse zamakina zimakhala zapamwamba kuposa za polyethylene wamba.Ndiwosavuta kugwiritsa ntchito pomanga ndipo imachita bwino powotcherera.