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

1. Optimal Hydraulic Performance

   • Ultra-Low Permeability: Hydraulic conductivity ≤1×10^-13 cm/sec (ASTM E96).

   • Zero Porosity: Non-textured surface eliminates preferential flow paths.

2. 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).

3. 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).

4. 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).

5. Installation Efficiency

   • Low Friction Coefficient: μ = 0.1–0.15 (ASTM D5321) enables rapid deployment on slopes.

   • Seam Integrity: Fusion seams achieve ≥90% parent material strength (ASTM D6392).

Technical Specifications

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.