Excellent Chemical Resistance HDPE Geomembrane for Effective Seepage Control in Environmental Engineering Applications
HDPE Smooth Geomembrane for Effective Seepage Control in Environmental Engineering Projects
Product Introduction
HDPE Geomembrane, full name High Density Polyethylene Geomembrane, is a waterproof and barrier material produced from (medium) high density polyethylene resin. It has a density of 0.94 g/cm³ or above, excellent resistance to environmental stress cracking, low temperature resistance, aging resistance, corrosion resistance, as well as a wide range of operating temperatures (-60--+60℃) and a long service life (up to 50 years). HDPE geomembrane is mainly composed of 97.5% high-density polyethylene and about 2.5% carbon black, anti-aging agents, antioxidants, ultraviolet absorbers, stabilizers, etc., and is made by three-layer co-extrusion technology.
Main Features
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Outstanding Impermeability: HDPE geomembranes have the lowest permeability, effectively preventing water seepage and suitable for various impervious projects.
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Good chemical stability: resistant to most household and industrial chemicals, not easily corroded.
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Ultraviolet Resistance: Capable of resisting the effects of ultraviolet light, extending service life.
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Good mechanical properties: It has strong tensile strength and elongation at break, adapting to uneven geological settlement.
The application fields of HDPE geomembrane
HDPE geomembranes are widely used in various fields due to their unique properties:
Environmental Engineering
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Landfill Liner for Municipal Solid Waste: Effectively prevents leachate from municipal solid waste polluting groundwater and soil.
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Waste Landfill Imperviousness: Protects groundwater resources and reduces environmental pollution.
Water Conservancy Project
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Dams and Reservoir Seepage Prevention: Preventing water loss and maintaining the effective use of water resources.
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Channel and Reservoir Seepage Prevention: Enhancing the durability and safety of water conservancy facilities.
Construction Engineering
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Underground Building Waterproofing: Protects buildings from erosion by groundwater.
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Building Waterproofing: Preventing basement and roof leakage to extend the life of the building.
Agricultural sector
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Aquaculture Waterproofing: Provides a clean growth environment for aquatic organisms.
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Agricultural Water Conservancy: Improve the efficiency of irrigation systems to reduce water wastage.
Environmental Engineering
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Artificial lake and landscape lake waterproofing: Maintain water quality and ecological balance.
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Tailings Treatment Imperviousness: Prevents tailings pollution of soil and water sources.
(According to the Latest National standard: GH-2S & GB/T 17643-2025)
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Specification |
0.75mm |
1.00mm |
1.25mm |
1.50mm |
2.00mm |
2.50mm |
3.00mm |
Remark |
|
Item |
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|
Thickness (mm) |
0.75mm |
1.00mm |
1.25mm |
1.50mm |
2.00mm |
2.50mm |
3.00mm |
|
|
Density (g/c㎡,≥) |
0.940 |
|
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Tensile Properties |
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Yield Strength (N/mm,LD/TD) |
11 |
15 |
18 |
22 |
29 |
37 |
44 |
|
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Breaking Strength (N/mm,LD/TD) |
20 |
27 |
33 |
40 |
53 |
67 |
80 |
|
|
Yeild Elongation Rate (%) |
10-16 |
|
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Breaking Elongation Rate (%) |
≥700 |
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Rectangular Tear Strength (N) |
93 |
125 |
160 |
190 |
250 |
315 |
375 |
|
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Puncture Strength (N) |
240 |
320 |
400 |
480 |
640 |
800 |
960 |
|
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Environmental Stress Crack Resistance (h) |
≥500 |
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Carbon Black |
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Carbon Black Content(Rang) (%) |
2.0~2.8 |
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Carbon Black Dispersion |
Nine of 10 observation area should be grade 1 or grade 3, not more grade4,grade5 |
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Oxidative Induction Time (OIT) |
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Standard OIT (min) |
≥100 |
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High Pressure OIT (min) |
≥400 |
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85℃ Oven Ageing (Minimum Average) |
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90 days after baking, the standard OIT retention(%) |
≥55 |
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90 days after baking, the hight pressure OIT retention(%) |
≥80 |
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The Anti-UV Strength |
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Ultraviolet irradiation after 1600 hours, the standard OIT retention(%) |
≥50 |
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-70℃ The Low Temperature Embrittlement Performance impact |
Pass |
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Water Vapor Penetration Coefficient g.cm (cm2.s.Pa) |
≤1.0X10-13 |
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Dimensional Stability |
±2.0 |
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Product Specification and Technical Index
(According to the Latest National standard: GH-1 & GB/T 17643-2025)
|
Specification |
0.30 |
0.50 |
0.75 |
1.00 |
1.25 |
1.50 |
2.00 |
2.50 |
3.00 |
Remark |
|
Thickness (mm) |
0.30 |
0.50 |
0.75 |
1.00 |
1.25 |
1.50 |
2.00 |
2.50 |
3.00 |
|
|
Density (g/c㎡,≥) |
≥0.94 |
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|
Tensile Yield Strength (N/mm, ≥,LD/TD) |
4 |
7 |
10 |
13 |
16 |
20 |
26 |
33 |
40 |
|
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Tensile Breaking Strength (N/mm, ≥,LD/TD) |
6 |
10 |
15 |
20 |
25 |
30 |
40 |
50 |
60 |
|
|
Yield Elongation Rate (%,≥,LD/TD) |
- |
- |
- |
1-16 |
|
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Breaking Elongation Rate (%,≥,LD/TD) |
≥600 |
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Rectangular Tear Load (N,≥,LD/TD) |
34 |
56 |
84 |
115 |
140 |
170 |
225 |
280 |
340 |
|
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Puncture Strength (N,≥) |
72 |
120 |
180 |
240 |
300 |
360 |
480 |
600 |
720 |
|
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Carbon Black Content (%) |
2.0~2.8 |
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Carbon Black Dispersion |
Less than 1date of Grade 3 out of 10 data, grade 4,grade 5 is not allowed |
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