Material：polyvinyl chloride
Nominal Thickness：40 mil/1 mm
Shipping Method：logistics
Product Category：PVC Geomembrane,Geomembrane
Appearance：Rolls,black,dark gray,or customized
Price：$2.00-$4.50/m²,the price of 40 mil(1 mm)PVC Geomembrane is not fixed and is influenced by various factors.For more details,please consult us.
The 40-mil (1.0 mm) PVC Geomembrane is a high-performance polymer lining system renowned for its exceptional flexibility, puncture resistance, chemical corrosion resistance, and excellent weldability. Compared to HDPE geomembranes, PVC membranes are better at accommodating subgrade settlement and feature high seam strength, facilitating easier installation. This thickness is a common and reliable specification in numerous containment applications, offering an optimal balance between cost and performance.
Performance
The properties of 40 mil (1 mm) PVC geomembrane are as follows：
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Exceptional Flexibility: The inherent flexibility of PVC allows it to conform well to uneven subgrades, adapting to ground settlement and deformation without brittle failure.
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High Puncture Resistance: The 1.0mm thickness provides good mechanical strength, effectively resisting penetration from underlying sharp gravel or root penetration.
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Superior Impermeability: Features an extremely low water vapor transmission rate (typically <1.0 x 10⁻¹³ cm/s), forming a complete and reliable hydraulic barrier.
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Good Chemical Resistance: Resists a wide range of acids, alkalis, and salts, making it suitable for containing wastewater and landfill leachate in various complex environments.
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Excellent Weldability: Seams are made using hot wedge or hot air welding, resulting in high seam strength (typically ≥ 80% of the parent material strength). This allows for efficient installation, reliable seam quality, and easy testing.
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Weather & UV Resistance: The inclusion of UV stabilizers in the formulation allows for exposed outdoor use for specified durations without significant performance degradation.
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High Elongation at Break: The fracture elongation of 40 mil (1 mm) PVC geomembrane can usually reach 200% to 300%, which means it can withstand large tensile deformation without breaking, reflecting its excellent deformation adaptability.
Application
The 40-mil PVC Geomembrane is primarily used in the following engineering fields:
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Water Conservancy Projects: Liners for reservoirs, dams, and irrigation canals.
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Environmental Engineering:
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Landfills (as secondary liners or cover systems).
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Liners for wastewater treatment plants, equalization ponds, and evaporation ponds.
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Containment liners for hazardous waste sites.
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Aquaculture: Liners for breeding ponds (e.g., shrimp, sea cucumber) and hatchery tanks.
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Mining Engineering: Liners for heap leach pads, tailings dams, and solution ponds.
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Civil Engineering: Waterproofing and moisture barriers for basements, tunnels, and green roofs.
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Other Applications: Liners for artificial lakes, decorative water features, and golf course water hazards.
Specifications
The following table outlines typical specifications for a 40-mil (1.0mm) PVC Geomembrane conforming to international standards (e.g., GRI GM13).
| Property | Unit | Typical Value / Range | Test Method |
|---|---|---|---|
| Thickness | mm | 1.0 | ASTM D5199 |
| Mass per Unit Area | g/m² | ~1300 | ASTM D5994 |
| Tensile Strength (MD/XD) | N/mm | ≥ 20 | ASTM D882 |
| Elongation at Break (MD/XD) | % | ≥ 200 | ASTM D882 |
| Tear Resistance (Trouser Tear, MD/XD) | N | ≥ 120 | ASTM D1004 |
| CBR Puncture Strength | N | ≥ 550 | ASTM D6241 |
| Water Vapor Permeance | cm/s | < 1.0 x 10⁻¹³ | ASTM E96 |
| Low-Temperature Bend | °C | -25 ± 2, No Cracking | |
| Peel Adhesion Strength | N/mm | ≥ 10 (60% of parent material) | |
| Shear Strength | N/mm | ≥ 15 (80% of parent material) |
