Geomembrane Product Features
- Raw Material: LDPE or LLDPE, < 0.939 g/cm3.
- Surface: Smooth
- Thickness: 0.3-3 mm / 0.5-3 mm.
- Width: 6-8m, can be customized.
- Standard: GB/T 17643-2025, GRI-GM17, ASTM, ISO...
- Delivery Time: Have stock.
- Packaging: 50-100 m/roll, can be customized.
- Free Samples: Available.
- MOQ: Trial or bulk orders are acceptable.
LDPE/LLDPE Geomembrane
A seepage-proof material with extremely high flexibility.
LDPE and LLDPE geomembranes are a type of seepage-proof material with extremely high flexibility, elongation, and environmental adaptability. We can manufacture in strict accordance with GB/T, ASTM, ISO, and other standards, all made from pure new HDPE resin. LLDPE products are particularly outstanding, they have a lower density (≤0.939 g/cm³) and a softer texture, making them especially suitable for projects with complex terrain, uneven settlement, or low-temperature environments.
Production Process: Manufactured using multi-layer co-extrusion blow molding technology. LDPE has good flexibility and is easy to process. Based on LDPE, LLDPE introduces comonomers, which gives it higher tensile strength, elongation at break (≥800%), and puncture and tear resistance.
Quality Control: The entire production process is monitored by automation. Strict factory inspections are conducted in accordance with standards, to ensure that the dimensions, appearance, and key properties (such as tensile strength and puncture resistance) of each roll of product exceed the standard requirements.
After-sales Service: We have over one million square meters of construction experience, and our team can provide on-site construction services. We also offer remote technical guidance to assist with welding and construction.
Advantages
- Exceptional Flexibility and Elongation
- Excellent Low-temperature Performance: It remains flexible and not easily brittle even in extremely cold climates (passed the -70℃ impact test), making it suitable for projects in high-latitude or high-altitude areas.
- Chemical corrosion resistant
- Stronger resistance to thermal oxidation (OIT retention rate ≥35% after aging at 85℃) and UV aging (OIT retention rate ≥35%).
- Excellent Resistance to Stress Cracking
|
Specification for LDPE Geomembrane (Smooth)
GB/T 17643-2025
|
||||||||||
| No. |
公称厚度 Nominal Thickness mm |
0.3 | 0.5 | 0.75 | 1 | 1.25 | 1.5 | 2 | 2.5 | 3 |
| 1 |
密度 Density g/cm3 |
<0.939 | ||||||||
| 2 |
拉伸断裂强度(纵、横向) Tensile Break Strength (MD and XMD) N/mm |
≥6 | ≥9 | ≥14 | ≥19 | ≥23 | ≥28 | ≥37 | ≥47 | ≥56 |
| 3 |
拉伸断裂应变(纵、横向) Tensile Break Elongation (MD and XMD) % |
≥560 | ||||||||
| 4 |
直角撕裂负荷(纵、横向) Right-angle Tear Resistance (MD and XMD) N |
≥27 | ≥45 | ≥63 | ≥90 | ≥108 | ≥135 | ≥180 | ≥225 | ≥270 |
| 5 |
刺破强力 Puncture Strength N |
≥52 | ≥84 | ≥135 | ≥175 | ≥220 | ≥260 | ≥350 | ≥435 | ≥525 |
| 6 |
炭黑含量 Carbon Black Content % |
2.0~2.8 | ||||||||
| 7 |
炭黑分散性 Carbon Black Dispersion |
Of the 10 data, there is no more than one level 3, and no levels 4 or 5. | ||||||||
| 8 |
常压氧化诱导时间(常压OIT) Oxidative Induction Time (Standard OTI) min |
≥60 | ||||||||
| 9 |
低温冲击脆化性能 Low-temperature Impact Embrittlement Performance |
Pass | ||||||||
| 10 |
水蒸气渗透系数 Water Vapor Permeability g·cm/(cm2·s·Pa) |
≤1.0X10-13 | ||||||||
| 11 |
尺寸稳定性 Dimensional Stability % |
±2.0 | ||||||||
|
Note:
* Item 6 and 7 apply only to black polyethylene geomembranes.
|
||||||||||
|
Specification for LLDPE Geomembrane (Smooth)
GB/T 17643-2025
|
|||||||||
| No. |
公称厚度 Nominal Thickness mm |
0.5 | 0.75 | 1 | 1.25 | 1.5 | 2 | 2.5 | 3 |
| 1 |
密度 Density g/cm3 |
≤0.939 | |||||||
| 2 |
拉伸断裂强度(纵、横向) Tensile Break Strength (MD and XMD) N/mm |
≥13 | ≥20 | ≥27 | ≥33 | ≥40 | ≥53 | ≥66 | ≥80 |
| 3 |
拉伸断裂应变(纵、横向) Tensile Break Elongation (MD and XMD) % |
≥800 | |||||||
| 4 |
2%正割模量 2% Modulus (max.) N/mm |
≤210 | ≤370 | ≤420 | ≤520 | ≤630 | ≤840 | ≤1050 | ≤1260 |
| 5 |
直角撕裂负荷(纵、横向) Right-angle Tear Resistance (MD and XMD) N |
≥50 | ≥70 | ≥100 | ≥120 | ≥150 | ≥200 | ≥250 | ≥300 |
| 6 |
刺破强力 Puncture Strength N |
≥120 | ≥190 | ≥250 | ≥310 | ≥370 | ≥500 | ≥620 | ≥750 |
| 7 |
炭黑含量 Carbon Black Content % |
2.0~2.8 | |||||||
| 8 |
炭黑分散性 Carbon Black Dispersion |
Of the 10 data, there is no more than one level 3, and no levels 4 or 5. | |||||||
| 9 |
常压氧化诱导时间(常压OIT) Oxidative Induction Time (Standard OTI) min |
≥100 | |||||||
| 10 |
高压氧化诱导时间(常压OIT) Oxidative Induction Time (High Pressure OTI) min |
≥400 | |||||||
| 11 |
低温冲击脆化性能 Low-temperature Impact Embrittlement Performance |
Pass | |||||||
| 12 |
水蒸气渗透系数 Water Vapor Permeability g·cm/(cm2·s·Pa) |
≤1.0X10-13 | |||||||
| 13 |
尺寸稳定性 Dimensional Stability % |
±2.0 | |||||||
| 14 |
85℃热老化(90d后常压OIT保留率) Oven Aging at 85°C Standard OIT- % retained after 90 days % |
≥35 | |||||||
| 15 |
耐紫外老化性能(1600h后OIT保留率) UV Resistance Standard OIT- % retained after 1600 hrs % |
≥35 | |||||||
|
Note:
* Item 7 and 8 apply only to black polyethylene geomembranes.
* Items 9, 10, and 15 are allowed to choose one test.
|
|||||||||
- Complex Terrain and Settlement Areas:
- restoration of abandoned mine pits, secondary seepage prevention for landfills that have already settled and stabilized, and artificial wetlands with significant topographic relief.
- Low-temperature Environment Engineering:
- water storage tanks in cold northern regions, and seepage prevention projects constructed during winter.
- Secondary Containers and Liners:
- secondary seepage prevention linings for chemical tank areas and oil storage facilities, requiring materials with extremely high deformation adaptability.
- Aquaculture:
- linings for aquaculture ponds, using soft materials that are friendly to fish and provide reliable seepage prevention.
- Special Applications:
- tunnel waterproofing membranes, and flexible waterproofing layers used in certain special civil engineering structures.
