Quadex was founded in 1991 and is one of the most respected names in the protective coatings and linings sector of the wastewater rehabilitation industry.

We began by manufacturing a complete line of cementitious products and continue to refine our products and develop new ones that keep Quadex at the forefront of the infrastructure protection and restoration industry. Our staff and team of Certified Applicators are dedicated to providing only the highest quality products and equipment used to rehabilitate old or damaged wastewater structures.

Quadex products and equipment, and the Certified Applicators that use them, work to protect and restore the structural integrity of water related structures including, manholes, wetwells, pumping stations, headworks and other severe duty wastewater structures.Quadex products are formulated and designed with the most advanced technology and are proven with over 20 years of successful installations. Our products offer unmatched structural and flexural strength, permeability, application thickness and quick return-to-service workability. Our specialized lining products provide a permanent seal against corrosion, infiltration and exfiltration, and support an installation life of 50-100 years. To ensure the performance of each product, we verify the results of our in-house studies through extensive independent laboratory American Society for Testing and Materials (ASTM) procedures.


Quadex Repair Materials Division

QRM is one of the nation’s leading manufacturers and supplies of hybrid cements,epoxies and  geopolymers used for the rehabilitation of manholes, junction boxes, wet wells, large diameter pipe and  other water and sewer infrastructure.

Quadex Lining Systems Division

QRS provides internal pipe revhabilaiton and repair systems to address leaking laterals, offset joints and  cracked pipe of all diameters. Check out our Pipe Robo Tec pages on the site.

Quadex Repair Systems Division

QLS has developed proprietary installation and application equipment to address the needs of leaking and  failing pipes manholes and other structures. These systems are custom-built and licensed to qualified  installation contractors.