What Is Geomembrane?

Geomembrane is a polymer-based waterproof geosynthetic membrane used to prevent the leakage of liquids and gases in civil engineering and environmental protection projects.

GeosynSource geomembranes are manufactured using 100% virgin HDPE, LLDPE, or EVA materials, with excellent impermeability, chemical resistance, and long-term durability, making them suitable for high-demand waterproofing applications such as landfills, mining, reservoirs, aquaculture, tunnels, and more.

Common Applications:

Our geomembranes are widely used in the following fields：

✔ Waste Management

Used as landfill liners to prevent leachate from polluting soil and groundwater.

✔ Water Resources & Reservoirs

Ideal for reservoirs, irrigation canals, ponds, and water storage projects.

✔ Mining Engineering

Applied in heap leaching pads, tailings ponds, and chemical containment reservoirs.

✔ Civil Engineering

Used for dam seepage control, river channel protection, and slope stabilization.

✔ Aquaculture

Perfect for fish and shrimp ponds, ensuring clean and stable breeding environments.

✔ Tunnel & Subway Projects

EVA geomembrane is widely used for waterproofing underground structures.

Main Features:

⭐ 1. Excellent Impermeability

• Ultra-low permeability ≤ 1.0×10⁻¹⁶ g·cm/cm²·s·Pa

• Ensures reliable isolation of liquids and gases

⭐ 2. Outstanding Chemical Resistance

• HDPE material resists acids, alkalis, salts, and industrial wastewater

• Ideal for hazardous waste containment and mining applications

⭐ 3. UV-Resistant & Anti-Aging

• Built-in UV stabilizers

• Suitable for long-term outdoor exposure

⭐ 4. High Mechanical Strength

• Excellent tensile, tear, and puncture resistance

• Withstands heavy loads and construction machinery

⭐ 5. Wide Operating Temperature Range

• Suitable for –70°C to +70°C

• Performs well in extreme climate conditions

⭐ 6. Easy Installation & Heat-Weldable

• Compatible with automatic hot-wedge welders

• Ensures secure seam integrity

Technical standard:

Physical & Mechanical Properties Comparison

All materials can be customized in thickness (0.5 mm – 3.0 mm) and width.

Types of Geomembrane:

✔ HDPE Geomembrane

• High rigidity and chemical resistance

• Ideal for landfill, mining, and industrial waste containment

✔ LLDPE Geomembrane

• More flexible than HDPE

• Suitable for uneven terrain and water containment projects

✔ EVA Geomembrane

• Environmentally friendly, flexible, excellent waterproofing

• Commonly used in tunnels, subways, underground waterproofing

Installation Guide:

Step 1 – Site Preparation

• Level the ground and compact the base

• Remove sharp stones and debris to avoid punctures

Step 2 – Liner Deployment

• Unroll geomembrane carefully

• Avoid stretching and dragging

• Ensure overlaps ≥ 10–15 cm

Step 3 – Heat Welding

• Use hot wedge or hot air welding machines

• Apply double-track welding for high-stress zones

Step 4 – Seam Inspection & Quality Control

• Vacuum box testing

• Spark testing or ultrasonic examination

Step 5 – Protective Cover Layer

• Apply geotextile, sand, or soil cover

• Prevent UV exposure and mechanical damage

Flexible & Durable:

Easily adapts to uneven ground without cracking.

Strong Protection

Withstands impact and prevents puncture.Resistant to heavy loads, sharp objects, and construction machinery pressure.

Corrosion Resistant

Stable against chemicals and UV.Effectively resists acids, alkalis, and chemical erosion.Built-in UV protection allows long-term outdoor use without degradation.

Low Permeability

Maximum isolation with <0.3% leakage rate.Creates a continuous waterproof barrier that blocks seepage completely.Guarantees efficient containment for water, waste, and chemical storage.

Application scope

The utility model is used in the landfill, the tailings storage yard, the seepage prevention of the channel, the seepage control of the dam and the subway project, etc.

FAQ – Frequently Asked Questions:

Q1: How long does HDPE geomembrane last?

A: 30–50 years under normal environmental conditions.

Q2: What certificates do your geomembranes comply with?

A: National Standard, CE, ISO 9001, GRI-GM13, ASTM test reports.

Q3: Do you support customized sizes and thickness?

A: Yes, we offer full customization.

Q4: What is your minimum order quantity?

A: MOQ is 500㎡.

Q5: Can geomembrane be welded on-site?

A: Yes. It supports heat welding and can be installed quickly.

Why Choose GeosynSource?

✔ 100% Virgin HDPE / LLDPE / EVA

✔ Certified to National Standard & ASTM

✔ Customizable Thickness & Width

✔ Factory Direct Price

✔ Global Project Experience

✔ Technical Team Support

✔ 10-Year Quality Warranty