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.

Founded in 2008, Jianyi group  is a large production base of solid waste safe landfill and engineering protective materials in China. The company has participated in the major infrastructure construction of the country and the "the Belt and Road", the construction of emergency epidemic prevention projects in Wuhan Huoshen mountain, Leishen mountain and Guangzhou Eighth People's Hospital, the national strategy for special treatment of heavy metals, the landfill and incineration of urban domestic waste, industrial waste, hazardous waste disposal and other environmental protection projects, provided a large number of high-quality new geotechnical environmental protection materials for the partners, and provided overall solutions for the project.

corporate culture

[Vision]

Become a world-class engineering safety system solution service provider!

[mission]

Make the project safer and the environment better!

[core values]

Integrity, innovation, pragmatism and efficiency! Professional and enterprising, achieving customers!