Item | Technical specification | |||
GCL-NP | GCL-OF | GCL-AH | ||
The quality of bentonite waterproof blanket unit area (g/m2) | ≥4000 and not less than the specified value | ≥4000 and not less than the specified value | ≥4000 and not less than the specified value | |
Inflation index (mL/2g) | ≥24 | ≥24 | ≥24 | |
Blue uptake (g/100g) | ≥30 | ≥30 | ≥30 | |
Blue uptake (N/100mm) | ≥600 | ≥700 | ≥600 | |
Max elongation % | ≥10 | ≥10 | ≥8 | |
Peel strength (N/100mm) | non-woven and woven fabric | ≥40 | ≥40 | - |
PE film and non-woven fabric | - | ≥30 | - | |
(m/s) permeability coefficient | ≤5.0x10-11 | ≤5.0x10-12 | ≤1.0x10-12 | |
durability | 0.4MPa,1h No leakage | 0.6MPa,1h,No leakage | 0.6MPa,1h leakage | |
Filtration loss/lm | ≤18 | ≤18 | ≤18 | |
Bentonite Durability (mL/2g) | ≥20 | ≥20 | ≥20 |
waterproof blanket
Bentonite waterproof mat (GCL) is a new type of geosynthetic material. It uses natural sodium bentonite as the material and fixes the bentonite particles between two layers of geotextile through a special process to make a bentonite waterproof blanket. It has all the characteristics of geotechnical materials. .It also has excellent waterproof (seepage) performance.
Product Description
The Geosynthetics Clay Liner is a kind of geosynthetic material specially used for anti-seepage of artificial lakes, waterscapes, landfills, underground garages, roof gardens, pools, oil depots and chemical storage yards. It is made of highly expansive sodium-based bentonite is filled between the special composite woven geotextile and non-woven geotextile. The bentonite impermeable pad made by needle punching can form many small fiber spaces. The bentonite particles cannot flow in one direction, and they stay in the pad when it meets water. A uniform and high-density colloidal waterproof layer is formed to effectively prevent water leakage.





Compared to other waterproofing materials, construction is relatively simple, don't need to be heated and paste.
With bentonite powder and nails, washers, etc are connected and fixed. After construction does not need specialinspection, if it is found that the waterproof defects and easy to maintenance.
GCL is existing waterproof material in construction period of the shortest.







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We aim to trade all over the world. Our experience in participating in international trade fairs at home and abroad


In order to ensure product quality, our company has invested a lot of money to establish a quality management center, and each batch of products will be inspected to ensure that customers' product quality issues



Q:Are you a factory or trading company?
A:We are a professional manufacturer that specialized in geomembrane, geotextile, composite geomembrane etc with ISO9001 certificate more than 20 years.
Q: Where is your factory located? How can I visit there?
A: Our factory is located at the lingzhou Street, Lingcheng District Economic Development Zone, Dezhou City, Shandong,China.
You can take the plan to Jinan Yaoqiang International Airport, then we can pick you up.
Q:Could you send the sample before order confirmation?
A: Yes, we'd love to send a free sample to you for an evaluation if you need.
Q: How long is your delivery time?
A: Generally it is 5-10 days upon getting your deposit payment.
Q: Can you produce the product according to customers' requirements?
A: Sure, we are professional manufacturer, OEM and ODM are both welcome.