Geosynthetic barrier for liquid & gas

GCLs provide an effective hydraulic seal

Geobarriers or Geosynthetic Clay Liners (GCLs) are geosynthetic barriers widely used for sealing and containment applications. They are made of one needle-punched geotextile layer and one woven textile layer with a layer of highly waterproof sodium bentonite in between. They are known for their low permeability, high performance, and the ability to self-heal.

Contact us

Sales representative
+558 2566 587

Sales representative
+558 2566 587

Features and Benefits

Extremely low permeability

GCLs are an effective barrier against liquids, vapours, and gases. GCL permeability is significantly lower than that of a typical compacted clay liner. In combination with geomembranes, it makes a practically impervious solution.  


Sodium bentonite is a natural clay that easily binds with water. It can swell up to 10 times its original volume. This enables it to self-heal any damages and punctures, and self-seam at the overlaps.

Easy to install

Installation is done using a spreader bar, which saves labour costs. No specialized crew is needed to handle the product. Your regular contractor can install GCL with conventional instruments following the installation guide.

Consistent performance

As opposed to compacted clay liners, GCL’s performance does not decrease because of cold, humidity or varying temperatures. There will be no cracks or leakage, and any damage will always be self-healed by swelling sodium bentonite.

Minimal maintenance

GCLs do not require maintenance in normal conditions and have a service life of over 100 years. If you are expecting them to come in contact with contaminated soils or water, you should consider strengthening the solution with geomembranes.

Economical and eco-friendly

GCL’s carbon footprint is much lower than that of massive clay liners. You will require 150 times more compacted clay than GCLs for the same job. Transportation and installation are less resource-consuming and more cost-effective.

  • Canals, stormwater impoundments and wetlands

  • Ground water protection

  • Structural waterproofing

  • Secondary containment

  • Landfill liners and cappings

  • Mining

  • Ponds

  • Structural waterproofing

Request a quote or brochure
[contact-form-7 html_class = "exp-form-rounded-with-underline exp-button-pill-block" id="1326"]

Have a project in mind?

Contact us

Contact us

Have an idea or a project, lets collaborate!

Contact us
Privacy Settings
We use cookies to enhance your experience while using our website. If you are using our Services via a browser you can restrict, block or remove cookies through your web browser settings. We also use content and scripts from third parties that may use tracking technologies. You can selectively provide your consent below to allow such third party embeds. For complete information about the cookies we use, data we collect and how we process them, please check our Privacy Policy
Consent to display content from - Youtube
Consent to display content from - Vimeo
Google Maps
Consent to display content from - Google
Consent to display content from - Spotify
Sound Cloud
Consent to display content from - Sound