Commercial Large Pond Liner Impermeable HDPE Geomembrane

What Is Commercial Large Pond Liner Impermeable HDPE Geomembrane

Commercial Large Pond Liner Impermeable HDPE Geomembrane is a high-density polyethylene synthetic liner engineered for large-scale water containment projects. It provides long-term impermeability, chemical resistance, and structural stability for commercial ponds, reservoirs, aquaculture farms, and industrial water management systems.

Technical Parameters and Specifications

The following specifications are widely adopted in commercial and EPC pond liner projects and align with international geomembrane engineering practices.

• Material: High-Density Polyethylene (HDPE)

• Thickness Range: 0.5 mm – 3.0 mm

• Density: ≥ 0.94 g/cm³

• Tensile Strength at Yield: ≥ 15 MPa

• Elongation at Break: ≥ 700%

• Puncture Resistance: ≥ 640 N

• Carbon Black Content: 2.0–3.0%

• UV Resistance: ≥ 50% retained after 1600 hours

• Service Temperature: -40°C to +80°C

• Design Service Life: 20–30 years under covered conditions

Structure and Material Composition

Commercial HDPE geomembranes are typically produced as homogeneous or co-extruded structures to meet different engineering requirements.

• Surface Layer: UV-stabilized HDPE with carbon black for sunlight protection

• Core Layer: High-purity polyethylene resin providing mechanical strength

• Optional Textured Layer: Improves friction on slopes and embankments

• Interface Layer: Designed for compatibility with geotextiles or soil subgrades

Manufacturing Process

Engineering Production Steps

1. Selection of virgin HDPE resin with certified melt flow index

2. Precise dosing of carbon black and antioxidant additives

3. High-temperature extrusion using flat-die or blown-film lines

4. Calendering to achieve uniform thickness control

5. Online inspection for pinholes, gels, and thickness deviation

6. Controlled cooling and roll winding

7. Batch sampling for mechanical and aging tests

Critical Process Controls

• Stable extrusion temperature to prevent polymer degradation

• Uniform resin dispersion to avoid weak points

• Continuous quality monitoring in accordance with ASTM and ISO standards

Industry Comparison

Application Scenarios

• Large-scale aquaculture ponds and shrimp farms

• Industrial water storage and wastewater lagoons

• Commercial irrigation reservoirs

• Mining and tailings containment ponds

• Municipal and EPC water infrastructure projects

Core Pain Points and Engineering Solutions

• Seepage Loss: Use thicker HDPE liners with certified welding quality

• Subgrade Damage: Install protective geotextile underlay

• UV Aging: Specify carbon black–stabilized HDPE formulations

• Slope Instability: Apply textured geomembranes on embankments

Risk Warnings and Mitigation Strategies

• Avoid sharp stones or debris during subgrade preparation

• Ensure qualified hot-wedge or extrusion welding teams

• Allow for thermal expansion during installation

• Conduct non-destructive seam testing after welding

Procurement and Selection Guide

1. Define pond dimensions, depth, and hydraulic pressure

2. Select liner thickness based on load and service life

3. Determine smooth or textured surface requirements

4. Verify compliance with international geomembrane standards

5. Review laboratory test reports and quality certifications

6. Assess supplier manufacturing capacity and project experience

7. Confirm availability of installation guidance and after-sales support

Engineering Case Example

In a Middle East commercial aquaculture project, a 2.0 mm HDPE geomembrane was installed across a 60,000 m² large pond system. The liner was welded using automated hot-wedge machines and protected with geotextile layers, achieving zero leakage and stable operation under high-temperature conditions for over three years.

Frequently Asked Questions

• Is HDPE suitable for large ponds? Yes, HDPE offers high strength and durability.

• What thickness is recommended? 1.0–2.5 mm for most commercial ponds.

• Can HDPE liners be exposed? Yes, with proper UV stabilization.

• How are seams joined? By hot-wedge or extrusion welding.

• What is the expected lifespan? Up to 30 years under proper conditions.

• Is geotextile mandatory? Strongly recommended for protection.

• Can HDPE resist chemicals? Excellent resistance to most acids and salts.

• Are textured liners necessary? Recommended for slopes above 3:1.

• What temperatures can HDPE handle? -40°C to +80°C.

• Can liners be repaired? Yes, by localized welding patches.

CTA – Commercial Inquiry

For project quotations, technical datasheets, or engineering samples of Commercial Large Pond Liner Impermeable HDPE Geomembrane, please submit your project specifications to receive professional technical and commercial support.

E-E-A-T Author Credentials

This content is developed by an engineering team with over 15 years of experience in geomembrane materials and large-scale water containment systems, supporting EPC contractors, infrastructure developers, and international procurement managers across industrial and commercial projects.

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