Rehabilitating a leaky manhole can be a time-consuming and labor-intensive job. That is unless, of course, you have the right system for the job. The Mainstay Composite Liner system from Madewell Products Corporation is just such a system.The two-component manhole rehabilitation system consists of a high-strength restoration mortar, such as Madewell Products Corporation’s Mainstay ML-72 Microsilica Restoration Mortar, and an epoxy corrosion barrier coating, such as Mainstay DS-4 or -5 Epoxy Coating, that cures simultaneously to repair and protect brick and concrete manholes and other sanitary sewer structures.“Being able to spray the epoxy on wet mortar is a big time
