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Geosynthetics Clay Liner (GCL) – Geofantex

  • Compactness: The sodium-based bentonite forms a high-density diaphragm underwater pressure. When the thickness is about 3mm, its water permeability is less than 5×10ˉ11m/s, which is equivalent to 100 times the compactness of 30cm thick clay, which is very strong. The self-retaining water performance.
  • Permanent waterproof performance: Because sodium bentonite is a natural inorganic material, even after a long time or the surrounding environment changes, it will not be aging or corroded, so the waterproof performance is long-lasting.
  • Simple construction: Compared with other waterproof materials, the construction is relatively simple, without heating and pasting. Just use bentonite powder, nails, washers, etc. for connection and fixation. No special inspection is required after construction, and it is easy to repair if waterproof defects are found. China Geosynthetic Clay Liner (GCL) is the shortest construction period among the existing waterproof materials.
  • Integration of waterproof materials and objects: sodium-based bentonite has 20 to 28 times the expansion capacity when exposed to water. Even if the concrete structure vibrates and settles, the bentonite in the Geosynthetics Clay Liner (GCL) can repair cracks on the concrete surface within 2mm.
  • Green and environmental protection: Bentonite is a natural inorganic material, which has no special impact on the environment and has good environmental performance.
  • Unaffected by temperature: it will not be brittle under cold weather conditions.
  • Brand GeoFanTex® GCL
  • Product origin China
  • Delivery time 7-14 days
  • Supply capacity 40′ HQ/ 7 Days

Product Details

Geosynthetics Clay Liner (GCL) – Geofantex

Geosynthetics Clay Liner is a kind of geosynthetic material specially used for preventing seepage of artificial lakes, waterscapes, landfills, underground garages, roof gardens, swimming pools, oil depots and chemical storage yards. It is made of highly expansive sodium-based bentonite which is filled between special composite woven geotextile and non-woven geotextile. Bentonite impermeable pad made by needle-punching can form many small fiber gaps. Bentonite particles cannot flow in one direction and stay in the pad when they meet water. A uniform and high-density colloidal impermeable layer is formed to effectively prevent water leakage.

Could be manufactured according to your inquiry, MINIMUM ORDER QUANTITY: 20ft container

Mechanical Properties     
PropertiesStandardUnitGCL – NP
Top/Cap Nonwoven GeotextileASTM D 5261g/m2200
Woven GeotextileASTM D 5261g/m2100

Bentonite Properties 
PropertiesStandardUnitGCL – NP
Weight ASTM D 5993g/m24,500
Swell Index ASTM D 5890ml/2g (≥)24
Moisture ContentASTM D 4643%12
Fluid Loss ASTM D 5891ml18

Finished GCL Properties

PropertiesStandardUnitGCL – NP
Mass Per Unitg/m(≥)4800
Blue Absorption Capacityg/100g (≥)30
Tensile Strength ASTM D 4632N/100mm (≥)600
Elongation at Break%(≥)10
Peel Strength ASTM D 6496N/100mm (≥)40
CBR Puncture ResistanceASTM D 6241KN(≥)2
PermeabilityASTM D 5887m/s(≤)5.0×10-11
Hydrostatic Pressure-Resistant0.4MPa,lh No infiltration
Index Flux(m3 /m2 )/s (≤)1 x 10-8
Bentonite Wearml/2g≥24
Soaked Pressure- Resistance  ASTM D 5321≥24KPa Typical

Applications of Geosynthetic Clay Liner (GCL) – Geofantex

  • It is used for stabilizing subgrades of roads and railways.
  • Waterproofing of municipal engineering, underground engineering of subways, buildings and roof tanks.
  • Environmental protection and sanitation, domestic waste landfill, sewage treatment plant, industrial waste.
  • Water conservation, leakage prevention, plugging and reinforcement of rivers, lakes, reservoirs and dams.
  • Waterproofing of ponds in gardens, artificial lakes, golf courses, etc.
  • Waterproof, anti-corrosion, anti-leakage, reinforcement, etc. in petrochemical, mining, agricultural and other fields.

    Geosynthetics Clay Liner (GCL) Rol en ingeniería – Geofantex

    • It has excellent waterproof and anti-seepage performance, the anti-seepage hydrostatic pressure can reach 1.0MPa or more, and the permeability coefficient is 5×10-9cm/s. Bentonite is a natural inorganic material, which will not cause aging reaction and has good durability; any adverse effects on the environment are environmentally friendly materials.
    • It has all the characteristics of geotextile materials, such as separation, reinforcement, protection, filtration, etc. It is easy to construct and is not restricted by the construction ambient temperature. It can also be constructed below 0°C. You only need to spread the Geosynthetics Clay Liner (GCL) on the ground during construction, and fix it with nails and washers during vertical or inclined construction, and overlap it as needed.
    • Easy to repair; even after the waterproof (seepage) construction is completed, if the waterproof layer is accidentally damaged, as long as the damaged part is simply repaired, the perfect waterproof performance can be restored.
    • The performance-price ratio is relatively high and the application is very wide.
    • The product has a width of up to 6 meters, which meets international geotextile (membrane) specifications, which greatly improves construction efficiency.

      Geofantex Geosynthetics have to make a series of guarantee for our products both plant processing and selling out to our customers. Selling to you is the first step, the service, and guarantee are our tasks. Geofantex Geosynthetics have an ISO Certificate to guarantee the raw material, the product processing, and the end product. From receiving your order to replacement and installation of the products, we have solved the problems in time if you need, whatever the quality and technics guidelines or suggestions. Our company has been committed to supplying high-quality products with reasonable prices and delivery on time. 

      MANUFACTURING QUALITY ASSURANCE

      GEOFANTEX has an on-site Manufacturing Quality Assurance Laboratory at the factory. GEOFANTEX maintains a high level of quality and up-to-the-minute results on finished products through a fully equipped, well-staffed, dedicated laboratory existing in each of the manufacturing facilities. Each facility follows the same guidelines for evaluating the quality of GEOFANTEX products and is capable of adapting to market-driven requirements.
      A. Objective
      The objective of the GEOFANTEX Quality Assurance program is to define the implementation of basic manufacturing quality assurance (MQA) procedures necessary to ensure the consistent production of quality products supplied to the geosynthetic market. Note that at this time, these procedures are limited to polypropylene staple fiber nonwoven geotextile.
      B. Scope
      In order to achieve GEOFANTEX’s stated purpose, a rigorous set of minimum standards and an effective test program to assure compliance have been established. These procedures and requirements are frequently reviewed and adjusted to assure compliance with current market demands and/or predetermined project specifications. These procedures assure that raw materials and process parameters are controlled to provide products complying with GEOFANTEX’s pre-defined minimum characteristics.

      PRODUCT IDENTIFICATION AND DOCUMENTATION

      A. Roll Numbering

      Each roll of geotextile is assigned a unique roll number. The Quality Assurance Laboratory maintains records documenting the raw materials and resulting product quality information.

      B. Approval Procedure

      Results for each tested roll of the product are checked against both GEOFANTEX China standards and customer specifications for compliance. The Quality Assurance Laboratory approves those materials that meet these requirements for shipment.

      C. Non-Conformance

      Material that does not meet GEOFANTEX minimum standards is given a roll number but is rejected and not placed into inventory. The material is identified as scrap and will not be utilized. Material that meets GEOFANTEX minimum standards but does not meet a stricter customer specification is not allocated to that customer but is placed into inventory as GEOFANTEX standard material.

      D. Documentation

      Individual Quality Assurance Certificates are generated and supplied for each roll of needle punched nonwoven geotextile product to include all relevant quality assurance information about the material(s).

      Geofantex Geosynthetics have a series of package and delivery service working procedures. Geofantex Geosynthetics have supplied thousands of containers to Latin America, North America, Southeast Asia, developed countries, and Africa within the past ten years. We provide the package of products with the rolls, pots, bags, sheets, or your requirement in orders. Our company has been committed to supplying high-quality products with reasonable prices and delivery on time. Delivery one 40’HQ within 7 – 10 days. And we have an obligation in increasing loading quantity and make you save the freight costs maximumly. We supply the products by plane, by sea, and by land carriage to any region or any countries of the worldwide, even the door-to-door service. 

       SEPARATIONREINFORCEMENTFILTRATIONDRAINAGEWATERPROOFPREVENTIONPOLLUTION
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      PROTECTIONCONSOLIDATE
      GEOTEXTILE   
      GEOMEMBRANE      
      GEOGRID       
      GEONET        
      GEOTUBE        
      GEOCELL       
      GCL       
      GEOCOMPOSITE  
      GEOCONCRETE BLANKET
      Geosynthetic material type and function comparison table

      GCLs Installation Guide

      CONTACT US ▶

      Certificate

      Development history of the company

      Company Profile

      Geofantex Geosynthetics Co., Ltd. is based in Dalian, a beautiful coastal city known for its excellent location and good transportation. Founded in 2014 with a registered capital of 5 million yuan, the company operates from an industrial park in Jinan, Shandong, covering over 50 acres. It features a modern office, advanced production equipment, and a skilled team in technical and management roles.

      The company focuses on producing eco-friendly geotextiles, including staple fiber geotextiles, filament geotextiles, composite geomembranes, HDPE/EVA geomembranes, geogrids, Geosynthetic Clay Liners (GCL), waterproof boards, composite drainage geonets, and other geosynthetic products. These products are widely used in infrastructure projects such as foundation reinforcement, slope protection, waterproofing, and drainage for railways, highways, water conservancy, and more. The company exports its products internationally and offers major civil engineering firms technical consultation, design support, and construction guidance. It can also customize geosynthetics to meet customer needs and has received recognition from both domestic and foreign experts.

           

      GeoFanTex | Nonwoven & Woven Geotextile Fabric

      Geofantex has achieved ISO9001 and ISO14001 certifications and adheres to national standards to ensure product quality. Since its inception, the company has adopted advanced technologies and equipment, exporting products to regions like Australia, Canada, and Southeast Asia. Its export sales have reached significant figures, and customer feedback highlights our products’ stability, reliability, and cost-effectiveness.

      The company leverages its innovative capabilities and market advantages, aiming to become a leading enterprise supported by national policies. Committed to “quality first” and “reputation first,” it emphasizes a people-oriented approach and values integrity, unity, and hard work. Geofantex seeks to collaborate with various engineering units to contribute to infrastructure development.

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