HDPE Smooth Geomembrane Liner for Tailings Storage Facilities: Engineered for

Product Specification

he Critical Barrier for Secure Mine Waste Containment

Our High-Density Polyethylene (HDPE) Smooth Geomembrane Liner is the industry-proven solution for lining tailings storage facilities (TSFs), heap leach pads, and containment ponds. Manufactured from premium, stabilized resins, it delivers an impermeable, chemically resistant barrier essential for preventing environmental contamination and ensuring long-term structural integrity in demanding mining applications.

Why Choose Our HDPE Liner for Tailings Management?

• Unmatched Chemical Resistance: Withstands highly aggressive mining fluids, including acidic/alkaline leachates, cyanide solutions, heavy metals, and saline process water. Protects groundwater and surrounding ecosystems.

• Superior Impermeability: Creates a virtually zero-permeability barrier (<1x10^-13 cm/s), preventing seepage of contaminated fluids into the subsoil.

• Exceptional Durability Under Stress: High puncture, tear, and tensile strength resist damage from overliner loads (tailings, equipment, cover systems) and differential settlement. Maintains integrity under constant hydrostatic pressure.

• Long-Term Stability in Harsh Environments: Formulated with ≥2% carbon black and advanced stabilizers for outstanding UV resistance, oxidation resistance, and performance across extreme temperatures (-70°C to +80°C). Engineered for decades of reliable service.

• Smooth Surface Advantages: Facilitates efficient deployment over large areas and complex slopes. Ensures uniform contact with compacted clay liners (CCLs) or geosynthetic clay liners (GCLs) in composite systems. Simplifies leak detection surveys (LDS).

• Resistance to Stress Cracking: Specially formulated to resist environmental stress cracking (ESC) caused by chemical exposure and sustained loads – critical for long-term TSF integrity.

Core Applications in Mining & Tailings Management:

• Base Liners for Tailings Dams & Impoundments: Primary containment barrier beneath tailings slurry.

• Heap Leach Pad Liners: Containing pregnant and barren leach solutions.

• Process Solution Ponds & Collection Pits: Lining ponds for process water, raffinate, or pregnant liquor.

• Interim Covers & Final Closures: Minimizing infiltration and promoting site rehabilitation.

• Emergency Containment Berms & Spill Pads.

Key Benefits for Tailings Facilities:

• Mitigates Environmental Risk: Significantly reduces the potential for groundwater contamination and regulatory non-compliance.

• Enhances Facility Safety & Stability: Provides a reliable barrier layer contributing to overall dam integrity and reducing failure risk.

• Reduces Long-Term Liability: Durable, long-lasting performance minimizes remediation costs and post-closure monitoring burdens.

• Optimizes Water Management: Minimizes seepage loss, allowing for better process water recovery and reuse.

• Facilitates Regulatory Approval: Meets or exceeds stringent global standards for mining containment (e.g., GRI-GM13, ASTM standards).

Engineered for Performance & Compliance:

• Robust Thickness Range: Available in 1.5mm to 3.0mm (60 mil to 120 mil+) to meet specific design loads and regulatory requirements.

• Large Panel Sizes: Supplied in wide rolls (up to 8.5m) to minimize field seams over vast areas.

• Field Seaming Integrity: Compatible with dual-track fusion wedge seaming – the preferred method for TSFs – creating strong, continuous, and verifiable seams.

• Quality Assured: Manufactured under ISO 9001 with strict quality control. Full traceability and Material Test Reports (MTRs) provided. Compliant with major international geomembrane specifications.

The Responsible Choice for Mining Containment

Choose our HDPE Smooth Geomembrane Liner as the foundation of your tailings management strategy. Its proven performance in the world's most challenging mining environments delivers the security, environmental protection, and long-term value essential for sustainable and responsible mining operations.