Geomembrane-ka isku dhafan (xuubabka ka-hortagga aragga ee isku dhafan) ayaa loo qaybiyaa hal maro iyo hal xuub iyo laba maro iyo hal xuub, oo ballaciisu yahay 4-6m, miisaankiisuna yahay 200-1500g/mitir laba jibaaran, iyo tilmaamayaasha waxqabadka jirka iyo farsamada sida xoogga adkaysiga, iska caabinta ilmada, iyo dillaaca. Sare, alaabtu waxay leedahay sifooyin awood sare leh, waxqabadka elongation wanaagsan, modules qallafsanaanta weyn, caabbinta acid iyo alkali, caabbinta daxalka, caabbinta gabowga, iyo impermeability wanaagsan. Waxay dabooli kartaa baahida mashaariicda injineernimada madaniga ah sida ilaalinta biyaha, maamulka degmada, dhismaha, gaadiidka, tareenada dhulka hoostiisa mara, tunnel-ka, dhismaha injineernimada, ka-hortagga-seegga, go'doominta, xoojinta, iyo xoojinta ka hortagga dildilaaca. Inta badan waxa loo isticmaalaa daawaynta ka-hortagga-seegga ee biyo-xireennada iyo godadka biyo-mareennada, iyo daaweynta ka-hortagga wasakhda ee qashinka qashinka.