Cretex Specialty Products, located in Waukesha, WI, specializes in Products used in the construction, rehabilitation, and repair of manholes for sewer, storm water, and underground utility structures. Since being founded in 1983 and introducing Mechanical Chimney Seals, Cretex Specialty Products has continued to focus on ways to fight the breakdown of manhole structures, with expertise in preventing water inflow and infiltration in the chimney section. Products include the traditional mechanical seals, grade adjustment rings, lid sealing products, pipe joint seals and more. Visit the company web site for more information.