Manufactured using advanced 7-layer co-extrusion technology with an EVOH barrier core, it blocks methane, radon, and VOC gases while resisting moisture. Manufactured and supplied worldwide.
MegaBarrier® is an advanced 7-layer co-extruded geomembrane with an EVOH barrier core. It is designed to block methane, radon, and VOC gases while providing excellent moisture resistance. MegaBarrier® is the ideal solution for brownfield redevelopment, landfill caps, contaminated land, and other critical containment applications where standard geomembrane liners do not provide enough protection. Manufactured by Megaplast and supplied worldwide, MegaBarrier® delivers reliable, long-lasting environmental containment.
Blocks migration of harmful methane & radon gases, vapors, or volatile organic compounds (VOCs)
Used in brownfield redevelopment, urban construction, and landfill caps
Acts as a barrier beneath buildings, slabs, and structures, for radon & methane infected sites
Provides environmental protection in contaminated land projects
Applied in petrochemical sites, industrial waste areas, and refineries
High performance gas and vapor barrier with ultra-low permeability
Provides protection from harmful gas exposure
Chemically resistant to hydrocarbons and solvents
Enhances safety, compliance, and environmental protection standards
MegaBarrier® is an advanced 7-layer co-extruded gas barrier geomembrane manufactured by Megaplast India. It features a high-performance EVOH barrier core that blocks methane, radon, VOCs, and moisture vapor. Unlike a standard HDPE geomembrane, MegaBarrier® is specifically designed for projects that require both liquid containment and long-term gas protection.
| Feature | Standard HDPE Geomembrane | MegaBarrier® Gas Barrier Geomembrane |
|---|---|---|
| Construction | Single-layer or Multi-layer HDPE | Advanced 7-layer co-extruded structure with EVOH barrier core |
| Gas Barrier | Not designed to block gases | Blocks methane, radon, and VOC migration |
| Moisture Barrier | Excellent | Excellent |
| Liquid Containment | ✔ Yes | ✔ Yes |
| Gas Containment | ✖ Limited | ✔ High-performance gas barrier |
| Typical Applications | Water reservoirs, ponds, canals, mining, landfills | Brownfield redevelopment, landfill caps, contaminated land, biogas plants, buildings, environmental containment |
| Thickness Range | Varies by application | 0.4 mm to 2.5 mm |
| Manufacturing Technology | Standard extrusion | Advanced 7-layer co-extrusion technology |
| Global Supply | Available from multiple manufacturers | Manufactured by Megaplast India and supplied worldwide |
MegaBarrier® is engineered to prevent the migration of methane gas, radon gas, volatile organic compounds (VOCs), and moisture vapor. It is widely used for brownfield redevelopment, contaminated land remediation, landfill sites, and gas-affected construction projects where long-term gas containment is essential.
Choose MegaBarrier® when your project requires gas containment in addition to liquid containment. Its advanced 7-layer co-extruded construction with an EVOH barrier core helps prevent the migration of methane, radon, and VOCs, making it ideal for sites with gas-related environmental risks.
For applications focused only on liquid containment, such as water reservoirs, irrigation ponds, mining, aquaculture, wastewater treatment, or industrial lagoons, MegaLiners® HDPE and LLDPE geomembranes provide a durable and cost-effective solution.
If you’re unsure which geomembrane is right for your project, Megaplast’s technical team can recommend the most suitable solution based on your application, site conditions, and project requirements.
MegaBarrier® is available in thicknesses from 0.4 mm to 2.5 mm to suit different project requirements. The recommended thickness depends on site conditions, gas concentration, ground conditions, and applicable engineering standards. Contact Megaplast’s technical team for a project-specific recommendation.
Yes. Megaplast manufactures MegaBarrier® under an ISO 9001:2015-certified quality management system. The geomembrane is produced using advanced 7-layer co-extrusion technology, with compliance to GRI standards verified for the product’s base substrate.
MegaBarrier® is designed for a wide range of environmental and infrastructure applications, including:
MegaBarrier® is installed using industry-approved geomembrane welding and seaming techniques. Megaplast provides technical guidance, installation support, and leak testing recommendations to help ensure the integrity and long-term performance of the geomembrane system.
Yes. Megaplast is a leading manufacturer and exporter of MegaBarrier® gas barrier geomembranes, supplying projects across Asia, Europe, the Middle East, Africa, Australia, and the Americas. We provide customized solutions for brownfield redevelopment, landfill, environmental containment, and infrastructure projects worldwide.
Designed for flexibility and elongation, suitable for dynamic ground conditions.