GEOMEMBRANES, THE MULTIPURPOSE GEOSYNTHETICS What are geomembranes? In straightforward terms, geo signifies earth while the membrane is a layer. So, geomembrane is essentially an impermeable layer used for separation. It is a geosynthetic liner. Far more effective than traditional concrete, compacted clay, or asphalt, the economical geomembranes are the norm today in a broad array of industries. The most common types of geomembranes are: ● High-density polyethylene or HDPE Geomembrane sheets ● Low-density polyethylene or LDPE Geomembrane ● Ethylene propylene diene monomer or EPDM Geomembrane Raw material and technology insights: HDPE accounts for more than 30% of the global geomembrane market owing to cost-effectiveness, ease of installation, and good thermal stability. The other common engineering polymers like PVC and EPDM are now seeing an increase in use as they are less prone to stress cracking and have low puncture resistance.