GreyCoat Epoxy from Source One Environmental is a 100 percent solid monolithic epoxy that offers chemical resistance and lasting durability with adhesion to concrete substrates and metal surfaces. The epoxy can build up to 1/4 inch without sag or shrinkage, and it has a quick cure time depending on the temperature. It is designed to structurally repair a variety of substrates such as manholes, wet wells and vaults, and provides adhesion in damp, humid surfaces. The material’s viscosity also allows installation on vertical and overhead areas. As an environmentally friendly product, it contains no VOCs, CFCs, or HFCs and protects against hydrogen sulfide and other chemicals typically found in a sewer system. It is packaged in a two-part bagging system that eliminates guesswork and product waste. 877-450-3701; www.s1eonline.com.