About Us



CETCO, the environmental segment of AMCOL is a diversified global company providing innovative products and practical solutions to challenging regulatory and construction problems. This segment delivers a complete range of services built around engineering support, technical assistance, and leadership in research and development. With the strength of these services, the environmental segment is well-positioned to provide responsive solutions on a global scale to today’s worldwide environmental compliance issues.

Waterproofing, Plaza Deck Restoration, CoreFlex
Roofing Underlayment, Sustainable, StrongSeal, Tire Crumb
Vapor Intrusion System, Remediation, Liquid Boot
Contracting Services, Lining, ponds, water management

Green Roof, Waterproof, Sustainable, Living Roof

D.O.T  Project, Lining, Soil Management
Lining, Waste Management, Landfill
Horizontal Directional Drilling, Water Well, Environmental Drilling


CETCO Lining Technologies Group offers a full range of engineered environmental liner systems including BENTOMAT® geosynthetic clay liners and AKWASEAL® pond liners. CETCO geosynthetic clay liners can be used in a wide variety of lining and capping applications such as stormwater impoundments, wetlands, canals, secondary containment, wastewater treatment plants, landfills, mining facilities, agricultural operations and engineered remedial barriers.


BENTOMAT geosynthetic clay liners combine a uniform layer of low permeability VOLCLAY sodium bentonite and durable, high-strength geotextiles to form an effective hydraulic seal for many liquid or waste containment conditions. Our products are reinforced by a patented needle-punching process, resulting in high peel and shear strength.




The Building Materials group features a wide variety of active and passive waterproofing membrane technologies for use in protecting the building envelope above and below grade. Our roofing products include recycled rubber underlayments, fluid applied roofing membranes as well as a complete greenroof system to address your sustainability requirements. From waterproofing membranes to greenroof soil and plants, CETCO understands that our customers’ needs differ. Our diverse product offering and integrated product approach is designed to accommodate the varied conditions encountered during construction, ensuring your waterproofing, roofing or greenroof system performs properly in the unique conditions of your project. Whether for new construction or restoration applications, a quality process is just as important as quality products. With more than 60 years of waterproofing experience, CETCO is known for quality, performance and reliability. 


Copyright 2019 by MTI
Terms Of Use | Privacy Statement