





Geosynthetic Clay Liner (GCL) is a composite material consisting of two layers of geotextile with bentonite wrapped in the middle. It combines the high strength of geotextile and the excellent anti-seepage performance of bentonite. It has the advantages of excellent anti-seepage performance, convenient construction, strong self-healing ability, etc. It is widely used in anti-seepage projects such as landfills, tailings ponds, and artificial lakes.
GCL- NP | GCL-OF | GCL- AH | ||
Mass per unit area of bentonite waterproof blanket(g/m20) | ≧4000And not less than the specified value | ≧4000And not less than the specified value | ≧4000And not less than the specified value | |
Bentonite swelling index (ml/2g) | ≧24 | ≧24 | ≧24 | |
Blue absorption capacity(g/100g) | ≧30 | ≧30 | ≧30 | |
Tensile strength(N/100mm) | ≧600 | ≧600 | ≧600 | |
Elongation under maximum load(%) | ≧10 | ≧10 | ≧10 | |
peel strength(N/100mm) | Non woven and woven fabrics | ≧40 | ≧40 | - |
PE film and non-woven fabric | - | ≧30 | - | |
Permeability coefficient(m/s) | ≦5.0*10-11 | ≦5.0*10-11 | ≦5.0*10-11 | |
Resistance to static water pressure | 0.4MPa /1h/ no-leakage | 0.4MPa /1h/ no-leakage | 0.4MPa /1h/ no-leakage | |
Filter vector /mL | ≦18 | ≦18 | ≦18 | |
Durability of Bentonite(mL/2g) | ≧20 | ≧20 | ≧20 |
Product Features:
Excellent anti-seepage performance: bentonite swells in water to form a dense gel, with extremely low permeability coefficient and excellent anti-seepage performance.
Easy to construct: light weight, easy to carry and lay, high construction efficiency.
Strong self-healing ability: bentonite has self-healing ability and can automatically repair damage caused by external forces.
Resistant to chemical corrosion: bentonite has good resistance to chemical corrosion and is suitable for various complex environments.
Environmentally friendly and non-toxic: bentonite is a natural mineral material, environmentally friendly and non-toxic, and does not pollute the environment.
Application areas:
Landfill: Used for anti-seepage of the bottom and side walls of landfill.
Tailing pond: Used for anti-seepage of the bottom and dam of tailing pond.
Artificial lake: Used for anti-seepage of the bottom and slope of artificial lake.
Other areas: Used for anti-seepage of sewage treatment plants, oil tank areas, chemical storage areas and other projects.
Customized service:
Specification customization: GCL with different thickness, width, length and other specifications can be customized according to customer needs.
Bentonite type customization: Bentonite with different sodium levels can be selected according to customer needs.
Geotextile type customization: Geotextile with different materials and weights can be selected according to customer needs.
Packaging customization: Different packaging methods can be customized according to customer needs, such as roll packaging, pallet packaging, etc.
Production scenario:
Raw material preparation: Select high-quality bentonite and geotextile, and undergo strict quality inspection.
Bentonite processing: Dry, crush, screen and process the bentonite.
Geotextile suturing: Sew two layers of geotextile to form a bag-like structure.
Bentonite filling: Fill the processed bentonite into the geotextile bag.
Quality inspection: Strict quality inspection of the finished product to ensure that the product meets national standards and customer requirements.
Shipping scenario:
Logistics and transportation: Use professional logistics and transportation methods to ensure that products are delivered to customers safely and promptly.
On-site guidance: Provide professional on-site guidance services to assist customers in product laying and construction.
Certificates:
Product quality certification: Passed ISO9001 quality management system certification, CE certification, etc.
Product test report: Provide product test reports issued by authoritative organizations.
FAQ:
Q: How long is the service life of GCL?
A: The service life of GCL can reach more than 50 years, and the specific service life depends on the use environment and construction quality.
Q: What are the construction methods of GCL?
A: The construction methods of GCL mainly include laying, overlapping, fixing and other steps. For specific construction methods, please refer to relevant specifications or consult professionals.
Q: What is the price of GCL?
A: The price of GCL is affected by factors such as specifications, quantity, and transportation distance. Please consult relevant manufacturers for specific prices.

Geosynthetic Clay Liner (GCL) is a composite material consisting of two layers of geotextile with bentonite wrapped in the middle. It combines the high strength of geotextile and the excellent anti-seepage performance of bentonite. It has the advantages of excellent anti-seepage performance, convenient construction, strong self-healing ability, etc. It is widely used in anti-seepage projects such as landfills, tailings ponds, and artificial lakes.