LLDPE Geomembrane Supplier In Pakistan
What is LLDPE Geomembrane? LLDPE (Linear Low‑Density Polyethylene) Geomembrane is a flexible, low‑permeability liner designed for projects that demand greater elongation, adaptability, and stress‑crack resistance than traditional HDPE. Manufactured from high‑quality virgin resin with UV stabilizers and antioxidants, it delivers long‑term containment performance in challenging environments2.
Key Technical Features
(Typical GRI‑GM17 or ASTM‑compliant values)
- Density: 0.918 – 0.939 g/cm³
- Thickness Range: 0.50 mm – 3.00 mm
- Tensile Strength at Yield: ~16–27 MPa
- Elongation at Break: ≥ 700% — exceptional flexibility for settlement or seismic zones2
- Puncture Resistance: High resistance to mechanical damage
- UV & Chemical Resistance: Withstands acids, alkalis, hydrocarbons, and prolonged sunlight exposure
- Low‑Temperature Performance: Maintains flexibility and toughness below −50 °C
| Property | Specification / Range | Notes |
|---|---|---|
| Thickness (nominal) | 0.50 mm – 2.50 mm | Custom thickness available on request |
| Roll Width | 6 m standard (custom 3 m – 8 m) | Based on project requirements |
| Roll Length | 50 – 100 m | Can be customized |
| Density | 0.915 – 0.94 g/cm³ | ASTM D1505 |
| Tensile Strength (Break) | 16 – 27 kN/m | ASTM D6693 |
| Yield Strength | 11 – 20 kN/m | ASTM D6693 |
| Elongation at Break | ≥ 800% | ASTM D6693 |
| Tear Resistance | 50 – 250 N | ASTM D1004 |
| Puncture Resistance | 120 – 620 N | ASTM D4833 |
| Environmental Stress Crack Resistance (ESCR) | ≥ 500 hours | ASTM D5397 |
| Carbon Black Content | 2 – 3% | For black geomembranes |
| Carbon Black Dispersion | Category 1 or 2 | ASTM D5596 |
| Oxidative Induction Time (OIT) | ≥ 100 min | ASTM D3895 / D5885 |
| Low-Temperature Brittleness | < –77 °C | ASTM D746 |
| Dimensional Stability | ± 1% | ASTM D1204 |
| Operating Temperature Range | –40 °C to +60 °C | Suitable for most climates |
Advantages
- Superior Flexibility — Conforms to irregular subgrades and complex shapes without stress cracking.
- Ease of Installation — Lighter and more pliable than HDPE, reducing seaming time and labor costs.
- Durability — Long service life in exposed or buried applications.
- Versatility — Suitable for both smooth and textured finishes depending on slope stability needs.
Applications
- Water Containment — Reservoirs, canals, potable water storage
- Waste Management — Landfills, wastewater lagoons, sludge ponds
- Mining — Heap leach pads, tailings ponds, process water containment
- Agriculture & Aquaculture — Fish farms, irrigation ponds, manure lagoons
- Industrial & Energy — Secondary containment for tanks, hazardous liquids, and chemical storage
“LLDPE Geomembrane — Flexibility Without Compromise.”