GCLs are used in the mining industry for lining and capping of tailings lagoons. Reed beds for minewater treatment are also lined with GCLs as are attenuation lagoons.

• Used in place of compacted clay or geomembranes in tailings lagoon lining and tailings caps
• Ease of installation in less favourable weather and ground conditions
• Self sealing if punctured
• Good slope stability
• Good differential settlement characteristics