CETCO® markets geosynthetic clay liner (GCL) products under the BENTOMAT® trade name for lining and capping landfills, encapsulation of contaminated land, lining of ponds, lagoons and canals, flood alleviation, drainage schemes and secondary containment projects.


AMCOL International Corporation, CETCO's parent company, is the world's largest producer and processor of Wyoming natural sodium bentonite, and GCLs are a natural extension of CETCO’s core capabilities. CETCO is firmly committed to the development and advancement of technologies that integrate bentonite and geosynthetics. This commitment to innovation is the foundation for CETCO’s GCL product line.



  • Landfill Caps
  • Landfill Liners
  • Contaminated Land Caps
  • Secondary Containment
  • Civil Engineering
  • Transportation
  • Surface Water Impoundments
  • Mining

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