Standard Certified By
LLDPE Composite Geomembrane (Two-layer Fabric, One-layer Membrane) | Double-sided Protection and Integrated Drainage Function
Classification :
PRODUCT DETAILS
1. Product Overview
The Flexible, Multi-Functional Containment System.
Our LLDPE Composite Geomembrane (Two layers of fabric and one membrane) is designed for critical projects exposed to ground movement and hydrostatic pressure. It features a highly flexible LLDPE membrane sandwiched between two layers of protective nonwoven geotextile. This configuration ensures dual-sided cushioning against rough layers (top and bottom) and utilizes the geotextile layers for integrated drainage to quickly relieve pressure, making it indispensable for landfill closure systems and geologically volatile areas.
2. Key Features
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Anti-Settlement Flexibility: The LLDPE base offers extreme elongation (>800%), accommodating ground shifts and differential settlement that would crack rigid HDPE.
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Dual-Sided Cushioning: Geotextile on both sides provides comprehensive protection, essential when covering the membrane with heavy soil or aggregate.
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Pressure Relief & Drainage: The geotextile layers can function as a lateral drainage path, relieving hydrostatic uplift pressure beneath the liner.
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UV Resistance: The outer geotextile layers provide temporary UV protection to the LLDPE membrane during prolonged installation.
3. Applications
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Landfill Closure Systems (Capping): Protecting the liner from waste gas venting layers and covering soil.
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Vaulted Ceilings & Tunnels: Providing waterproofing and drainage against structural walls.
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Golf Course Lakes: Lining complex shapes that require high flexibility and cushioning.
4. Technical Specifications
| Specification Item | Test Standard | Unit | Value (Typical LLDPE Comp. 2L) |
| Membrane Material | - | - | LLDPE (Flexible) |
| Membrane Thickness | ASTM D5994 | mm | 0.75mm - 1.5mm |
| Geotextile Layers | - | - | Two Layers (Top and Bottom) |
| Geotextile Weight | g/m² | 150g/m² + 150g/m² Minimum | |
| Seam Peel Strength | ASTM D6392 | N/mm | ≥ 1.0 |
| Puncture Resistance (Total) | ASTM D4833 | N | Varies, much higher than single layer |
Need LDPE geomembrane and nonwoven geotextile? Please check out our LDPE liners and nonwoven geotextiles.

Main Products

PROJECT CASES
APPLICATION AREAS
Geotechnical material series are widely used in various fields such as highways, railways, tunnels, water conservancy of reservoirs and canals, artificial lakes, environmental protection, sewage treatment, landfills, anti-seepage of tailings reservoir areas, and livestock breeding.
Water conservancy projects
Geosynthetics play a vital role in water conservancy projects such as dams and reservoirs, canals and channels, and riverbank protection.
Breeding industry
In the aquaculture industry, geosynthetics such as geomembranes and geotextiles can be used to create healthy aquaculture ponds, ensure stable water quality and reduce water resource consumption. All geosynthetics provided by can be customized according to customer needs.
Road construction
The geosynthetics such as geomembranes, geotextiles, geogrids, geocells, etc. provided by play an irreplaceable role from roadbed treatment to pavement protection, from drainage systems to environmental protection isolation.
Agricultural
In agricultural irrigation and biogas digester scenarios, geosynthetics such as geomembranes and geotextiles play a key role due to their respective characteristics. The products provided by Factory meet the standards and can be customized according to requirements.
Coastal Engineering
In coastal engineering, geosynthetics such as geobags, cement blankets, and geogrids play an important role in coastal engineering from coastal protection, structural reinforcement to slope stability, and effectively respond to the challenges brought by the complex geology and environment of coastal areas.
Environmental Protection
Factory provides customers with high-standard geosynthetics to meet their needs for building landfills.
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