A HDPE geomembrane santsi ne sosai low permeability roba membrane liner ko shamaki tare da santsi surface. Ana iya amfani da shi kaɗai ko tare da kowane kayan aikin injiniyan ƙasa don sarrafa ƙaura na ruwa (ko gas) a cikin aikin da ɗan adam ya yi, tsari, ko tsarin. Masana'antu na HDPE geomembrane santsi farawa tare da samar da albarkatun kasa, wanda yafi hada da HDPE polymer resin, da kuma daban-daban Additives kamar carbon baki, antioxidants, anti-tsufa wakili, UV absorber, da sauran adjuvant. Resin HDPE da ƙari shine 97.5: 2.5.