In an era where infrastructure sustainability and durability are increasingly paramount, advances in engineering have led to the creation of specialized chemical grouts and epoxies. These innovations aim to effectively counter everyday issues such as infiltration in underground systems and corrosion in wastewater infrastructure, extending the life and enhancing the stability of sewer systems.

Epoxytec Mortartec Cladliner
Mortartec Cladliner from Epoxytec is a practical and economical approach to sanitary sewer manhole and other wastewater infrastructure lining by providing ease of application while delivering performance with savings. It is an engineered standalone hybrid epoxy-cement liner combining the simplicity of a cementitious lining with the performance of a high-build epoxy. It offers acid resistance to protect from corrosion derived from mild-to-moderate hydrogen sulfide conditions up to 100 ppm. It is well suited for the protective lining of new structures and the rehabilitation of aging structures, particularly brick or concrete sanitary sewer infrastructure. 877-463-7699; www.epoxytec.com

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Avanti International injection grouts
Infiltration enters underground systems every day through defects or faulty joints in manholes, causing system capacity issues, overload at treatment plants and possible injury to the community. Avanti International injection grouts have historically proven to be an economic and long-term solution to combating infiltration entering all areas of a collections system, including manholes. Injection grouts are engineered to stop leaks, stabilize soil and control groundwater, and be used in precast barrel joints, brick and concrete masonry units, pipe penetrations, vertical or horizontal cracks, void fill and pinholes. Each technique enables the technician to stop several leaks at once and helps to extend the life of the structure. 800-877-2570; www.avantigrout.com

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Infrastructure Repair Systems Infragard 
Infragard concrete and manhole rehabilitation products from Infrastructure Repair Systems include Top Coat and Chim-Coat, which are nonhazardous ambient-cure epoxy systems for a small patch, entire manhole or retaining wall. This cost-effective solution requires no expensive equipment as it has an easy trowel-on application. They are corrosion-resistant and high strength, with an impermeable structural bond to the substrate or to almost any concrete or metal surface. Chim-Coat is engineered with a flexible feature that maintains adhesion while expanding or contracting with changing temperatures and traffic loads. 877-327-4216; www.irsi.net

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PPG Protective & Marine Coatings RAVEN 405
The RAVEN 405 wastewater treatment coating system from PPG Protective & Marine Coatings has high physical strength and broad chemical resistance to stand up to severe, caustic environments. This ultra-high-build epoxy lining system has Severe Wastewater Analysis Testing certification and passed the Pickle Jar Test, as its thick film can withstand high hydrogen sulfide gasses and other caustics, chemicals and acids found in a wastewater facility. Applications include concrete wastewater lining, clarifiers and digesters, tunnels and pipelines, tanks, secondary containment and manholes. Benefits include corrosion resistance, 100% solids, ultra-low VOC (0.52 g/L), adhesive strength and quick return-to-service. It can protect new concrete or help rehabilitate an existing structure. 888-977-4762; www.ppgpmc.com