Quadex Lining Systems can be used to restore pipes, culverts and tunnels, including ones that are corrugated metal, concrete, brick and stone. The combination of precision equipment and GeoKrete geopolymer ensures a fast and effective structural renewal to damaged and leaking large-diameter pipe and infrastructure. The geopolymer can also be applied in a broad range of temperatures. The chemical composition makes it inherently resistant to microbial-induced corrosion. 855-949-3441; www.quadexonline.com.