Composite geomembrane is comprised of 2 layers of geotextile and a layer of geomembrane heat bonded together by extrusion laminating. The product is suitable for seepage reduction, canal lining or channel lining, protection, separation and horizontal drainage. Among these, anti-seepage and canal lining for transport of water in open channels are the primary functions. 

Seepage can be controlled in projects such as ear then or rock filled dams, concrete dams, sewage ponds, channels, reservoirs, and subway/tunnel basement linings.

Specification：

1. a cloth of a film substrate: 100-1000g/sqm, the film thickness: 0.1-1.5mm;

2.two cloth of a film substrate: 80-600g/sqm, the film thickness:0.2-1.5mm;

3. a cloth two membrane fabric: 100-1000g/sqm, the film thickness:0.1-0.8mm;

4. More than 4 cloth membrane fabric: 100-1000g/sqm, the film thickness: 0.1-0.8mm;