High-Density Polyethylene (HDPE) Smooth Geomembranes represent the
pinnacle of fluid containment technology, delivering unmatched
hydraulic integrity and long-term environmental protection.
Manufactured from premium-grade virgin resins with stabilized
carbon black and antioxidants, our smooth geomembranes provide a
defect-free, homogeneous barrier solution for demanding
applications where zero leakage is non-negotiable.
Core Technical Advantages
Optimal Hydraulic Performance
Superior Chemical Resistance
Resists acids, alkalis, hydrocarbons, salts, and landfill leachates
(Compatible with >300 chemicals per GRI GM17).
Ideal for potable water containment (NSF/ANSI 61 certified).
Enhanced Mechanical Properties
Tensile Strength: 28–45 MPa (ASTM D6693 Type IV).
Puncture Resistance: >600 N (ASTM D4833).
Stress Crack Resistance: >500 hrs (Notched Constant Tensile Load, ASTM D5397).
Long-Term Durability
UV Resistance: ≥2.5% carbon black content (ASTM D4218).
Thermal Stability: Service range -70°C to +80°C.
OIT Retention: ≥80% retained oxidative induction time after 90-day UV exposure
(ASTM D3895).
Installation Efficiency
Technical Specifications
Parameter | Value Range | Test Standard |
---|
Thickness | 0.75–3.0 mm (±10%) | ASTM D5199 |
Density | ≥0.940 g/cm³ | ASTM D1505 |
Melt Flow Index (190°C/5kg) | 0.1–1.0 g/10 min | ASTM D1238 |
Carbon Black Dispersion | ≤1 Rating (Cat. 1–3) | ASTM D5596 |
Vapor Transmission | ≤0.1 g·mm/m²·day | ASTM E96/E96M |
Critical Applications
Water Containment:
• Potable water reservoirs & canals (NSF-61)
• Irrigation ponds, aquaculture liners
Environmental Protection:
• Landfill caps/base barriers (Subtitle D)
• Secondary containment bunds (EPA 264)
Industrial:
• Process water ponds, brine evaporation
• Tank farm liners (API 650 complement)
Infrastructure:
• Tunnel waterproofing membranes
• Stormwater management basins
Quality & Compliance Assurance
Material Certification:
• GRI-GM13, GRI-GM17
• NSF/ANSI 61, FM 4470
• CE Marking (EN 13491, EN 13493)
Manufacturing Control:
• Automated extrusion calendering with laser thickness profiling
• Full-width online density monitoring
Seam Validation:
• Destructive testing (ASTM D6392)
• Non-destructive air channel testing (ASTM D5820)
Why Smooth HDPE?
"Smooth HDPE geomembranes provide the lowest permeability and
highest chemical resistance among polymeric liners. Their
homogeneous structure ensures predictable, long-term performance in
critical containment systems where fluid loss risk must be
minimized."
— Geosynthetics International (Vol. 29, 2022)
Request Project-Specific Data:
Specify thickness, width (up to 9m), roll length, and certification
requirements for technical submittals. Custom formulations
available for extreme chemical/UV exposure.