Yes, it is. It has requirement for acid and alkali resistance as well as aging resistance.
The seepage-proof treatment materials in refuse landfill generally include: 1.HDPE geomembrane. 2. GCL geosynthetic clay liner. 3. Geotextiles. 4. Drainage network. 5. HDPE draft tube. Wherein geomembrane and geosynthetic clay liner belong to impermeable materials and geomembrane is the uppermost impermeable material.