Geomembrane Liner
1.High impermeability:
With a low permeability coefficient (10⁻¹²~10⁻¹³ cm/s), it effectively blocks the seepage of water, liquids and gases.
2.Chemical corrosion resistance:
Resistant to acids, alkalis, salts and other media, suitable for corrosive environments.
3.Aging resistance and mechanical properties:
With added anti-UV agents, it has strong weather resistance), and features excellent tensile strength and puncture resistance, adapting to foundation deformation.
Product Introduction:
Geomembrane Liner is a flexible waterproof and seepage-proof roll material made of HDPE (high-density polyethylene) as the main raw material, with the addition of UV-resistant, anti-aging, and antioxidant additives, and manufactured through high-temperature extrusion. It is flexible, tough, and has high tensile strength. It is completely impermeable, resistant to acid and alkali corrosion, high and low temperature resistance, sun exposure resistance, and is not prone to cracking or aging. It is also not afraid of soil or chemical waste liquid corrosion. It is mainly laid on the bottom and slope of landfills, sewage treatment ponds, artificial lakes, fish ponds, reservoir dams, chemical storage tank areas, tailings ponds, and municipal landscape pools. It can effectively prevent sewage, leachate, and lake wastewater from seeping down and polluting groundwater and surrounding soil. At the same time, it plays a role in water retention, seepage prevention, isolation of harmful media, and protection of engineering foundations. It is an essential core seepage-proof material in environmental protection and water conservancy projects.
Performance Characteristics
Absolutely Leak-proof: Its dense structure prevents water, sewage, and dirty water from seeping through, providing exceptional waterproofing.
Exceptionally Durable: Unaffected by sun, rain, wind, and frost, it can last for decades outdoors without easily aging or cracking.
Corrosion-Resistant and Soak-Resistant: Withstands acidic and alkaline water, sewage, chemical wastewater, and soil corrosion without being damaged by immersion.
Strong and Tough: Highly tensile and tear-resistant, it adapts easily to various terrains, including ground and slopes, and is not easily broken.
Lightweight and Easy to Install: Easy to transport in rolls, simple to lay, and provides a strong overall integrity after splicing and sealing.
Environmentally Friendly and Non-Toxic: Does not pollute water or soil, suitable for fishponds, reservoirs, and drinking water projects.
Long Service Life: Does not require frequent replacement and requires almost no maintenance, saving money and hassle.
Product Parameters
| Metric | ASTM | unit | Test value | Minimum test frequency | ||||||
| test method | 0.75 mm | 1.00 mm | 1.25 mm | 1.50 mm | 2.00 mm | 2.50mm | 3.00 mm | |||
| Minimum average thickness | D5199 | mm | 0.75 | 1 | 1.25 | 1.5 | 2 | 2.5 | 3 | Per volume |
| Minimum value (any one of 10) | -10% | -10% | -10% | -10% | -10% | -10% | -10% | |||
| minimum density | D 1505/D 792 | g/cm3 | 0.94 | 0.94 | 0.94 | 0.94 | 0.94 | 0.94 | 0.94 | 90,000 kg |
| Minimum average tensile performance (1) | D638 Type IV | |||||||||
| Breakage strength, | N/mm | 20 | 27 | 33 | 40 | 53 | 67 | 80 | 9,000 kg | |
| yield strength | N/mm | 11 | 15 | 18 | 22 | 29 | 37 | 44 | ||
| Strain extension, | % | 700 | 700 | 700 | 700 | 700 | 700 | 700 | ||
| yield extension | % | 12 | 12 | 12 | 12 | 12 | 12 | 12 | ||
| Minimum strength of right-angle tear | D 1004 | N | 93 | 125 | 156 | 187 | 249 | 311 | 374 | 20,000 kg |
| Minimum puncture strength | D4833 | N | 240 | 320 | 400 | 480 | 640 | 800 | 960 | 20,000 kg |
| Constant tensile load stress cracking (2) | D5397 | hour | 300 | 300 | 300 | 300 | 300 | 300 | 300 | Based on GRI GM-10 |
| Carbon black content | D 1603(3) | % | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 | 2.0-3.0 | 9,000 kg |
| Carbon black dispersion | D5596 | Note (4) | Note (4) | Note (4) | Note (4) | Note (4) | Note (4) | Note (4) | 20,000 kg | |
| Oxygen induction time (OIT) (5) | 90,000 kg | |||||||||
| (a) Standard OIT | D3895 | minute | 100 | 100 | 100 | 100 | 100 | 100 | 100 | |
| （b） high-handed OIT | D5885 | minute | 400 | 400 | 400 | 400 | 400 | 400 | 400 | |
| 85℃ Oven aging (minimum average) (5)(6) | Per formula | |||||||||
| (A) Standard OIT is retained after 90 days | D 5721 | % | 55 | 55 | 55 | 55 | 55 | 55 | 55 | |
| (B) High voltage OIT is retained for 90 days | D 3895 D5885 | % | 80 | 80 | 80 | 80 | 80 | 80 | 80 | |
| Ultraviolet resistance (7) | Per formula | |||||||||
| （a） standard OIT | D3895 | Note (8) 50 | ||||||||
| (b) Retention of high pressure OIT after 1600 hours (9) | D5885 | % | ||||||||
Product Applications:
Geomembrane lining is a key material in hydraulic engineering, primarily used for seepage prevention, leakage prevention, slope protection, and erosion control.
In reservoirs, dams, and dikes: It is laid on the dam slope and reservoir bottom to prevent water seepage into the ground, reducing water loss and preventing seepage from eroding the dam structure, thus ensuring the stability and safety of the dike.
In artificial lakes, landscape lakes, and reservoirs: It is used as a seepage-proof lining throughout the entire pond, locking in water and preventing it from drying out year-round, eliminating the need for frequent water replenishment.
In rivers, aqueducts, and irrigation canals: It lines the canal bottom and slopes, preventing water seepage into the soil, improving water conveyance efficiency, and also preventing soil erosion and bank collapse.
In pumping stations, regulating reservoirs, and spillways: It acts as a seepage barrier, preventing groundwater backflow, and resisting water erosion, protecting the engineering structure from corrosion damage.
Geomembrane Liner are widely used in various water conservancy projects. They can be laid in facilities such as reservoirs, dams, artificial lakes, rivers, canals, and pumping station storage tanks. They mainly play the roles of preventing seepage and leakage, locking in water, preventing erosion, and stabilizing slopes and dams. They can reduce water seepage and loss, improve water conveyance and storage efficiency, prevent soil erosion and damage to engineering structures by seepage and water flow, and effectively ensure the long-term safe and stable operation of water conservancy projects.
