Hdpe geomembrane supplier china

HDPE Geomembrane Supplier China: Engineering & Supply Overview

Choosing a qualified hdpe geomembrane supplier china is a critical decision for EPC contractors, engineering consultants, importers, and infrastructure developers. Beyond unit price, supplier capability, resin control, manufacturing process, and quality assurance directly impact project safety, compliance, and lifecycle cost.

Product Definition

HDPE geomembrane is a high-density polyethylene liner engineered for impermeable containment in civil and environmental projects. When sourced from a professional HDPE geomembrane supplier in China, it offers controlled thickness, chemical resistance, and long-term durability for landfills, mining, and water infrastructure.

Technical Parameters and Specifications

A qualified HDPE geomembrane supplier in China should consistently deliver products meeting the following engineering parameters:

• Thickness Range: 0.5 mm – 3.0 mm (20–120 mil)

• Density: ≥0.94 g/cm³

• Tensile Strength at Yield: ≥15 kN/m

• Tensile Strength at Break: ≥27 kN/m

• Elongation at Break: ≥700%

• Carbon Black Content: 2.0% – 3.0%

• Carbon Black Dispersion: Category 1 or 2

• Oxidative Induction Time (Std): ≥100 min

• Oxidative Induction Time (HP): ≥400 min

• Hydrostatic Resistance: Pass (ASTM D5397)

Structure and Material Composition

From a material engineering perspective, HDPE geomembranes supplied by established Chinese manufacturers typically consist of:

• Primary Polymer: Virgin HDPE resin (PE100 or equivalent)

• Carbon Black: UV protection and aging resistance

• Antioxidant Package: Thermal and oxidative stability

• Processing Aids: Melt flow and extrusion stability

• Surface Structure: Smooth, single-textured, or double-textured

Manufacturing Process

A reliable HDPE geomembrane supplier in China follows an industrialized manufacturing workflow:

1. Resin sourcing and batch traceability control

2. Automatic gravimetric dosing of resin and additives

3. Flat-die or blown-film extrusion using multi-layer lines

4. Online thickness and width monitoring systems

5. Surface texturing via calibrated embossing rollers (if required)

6. Water or air cooling for dimensional stability

7. Roll cutting, labeling, and packaging

8. Laboratory testing per ASTM, ISO, and GRI-GM13

Industry Comparison: China vs Other Supply Regions

Application Scenarios

HDPE geomembrane suppliers in China typically serve the following users:

• Distributors: Bulk rolls for regional stock and resale

• EPC Contractors: Integrated liner systems for turnkey projects

• Engineering Firms: Design-specified materials for containment systems

• Project Owners: Cost-controlled, long-life infrastructure investments

Core Pain Points and Solutions

• Pain Point 1: Inconsistent quality among suppliers
       Solution: Select ISO-certified HDPE geomembrane suppliers in China with in-house labs

• Pain Point 2: Unverified resin sources
       Solution: Require resin brand disclosure and batch traceability

• Pain Point 3: Non-compliance with international standards
       Solution: Specify ASTM D and GRI-GM13 compliance in contracts

• Pain Point 4: Communication and documentation gaps
       Solution: Work with export-experienced suppliers providing English technical files

Risk Warnings and Mitigation Strategies

Sourcing from an unqualified HDPE geomembrane supplier in China may introduce:

• Premature liner aging

• Increased leakage risk

• Regulatory non-compliance

Mitigation includes third-party inspection, pre-shipment testing, and on-site welding trials.

Procurement Selection Guide

1. Define project application and exposure conditions

2. Confirm required standards (ASTM, ISO, GRI)

3. Shortlist experienced HDPE geomembrane suppliers in China

4. Review factory audit reports and certifications

5. Request technical datasheets and test reports

6. Evaluate logistics, packaging, and export capability

7. Order samples for independent laboratory verification

Engineering Case Example

In a mining tailings containment project, an EPC contractor sourced 2.0 mm double-textured HDPE geomembrane from a qualified Chinese supplier. Factory-controlled extrusion and verified GRI-GM13 testing enabled stable installation across uneven subgrades, achieving long-term seepage control at optimized cost.

Frequently Asked Questions (FAQ)

• Q1: Why source HDPE geomembrane from China?
  A: Competitive cost and large manufacturing capacity.

• Q2: Are Chinese suppliers ASTM compliant?
  A: Reputable suppliers meet ASTM and GRI standards.

• Q3: What thickness is most common?
  A: 1.5 mm and 2.0 mm are widely used.

• Q4: Can textured liners be supplied?
  A: Yes, single or double textured options are available.

• Q5: What is the typical roll width?
  A: Usually 5–8 meters.

• Q6: How long is production lead time?
  A: Typically 7–20 days depending on volume.

• Q7: Is third-party inspection supported?
  A: Yes, most export-oriented suppliers accept it.

• Q8: What documents are provided?
  A: TDS, COA, packing list, and certificates.

• Q9: Are custom specifications possible?
  A: Yes, thickness and surface can be customized.

• Q10: How is long-term performance ensured?
  A: Through resin quality, OIT control, and UV stabilization.

Call to Action

For project-specific solutions, request a quotation, full technical documentation, or HDPE geomembrane samples from a verified HDPE geomembrane supplier in China to support your engineering and procurement evaluation.

E-E-A-T Author Credentials

This content is prepared by an engineering professional with over 15 years of experience in geomembrane manufacturing, international sourcing, and containment system design, supporting EPC and infrastructure projects across environmental, mining, and water sectors.