Enviroline 222 100 percent solid hybrid epoxy novolac from International Paint can be trowel or spray applied on precast concrete or brick structures from 20 to 100 mils DFT in a single coat application onto dry or damp vertical and overhead concrete surfaces. It demonstrates excellent adhesion, strength and durability and is chemically resistant to acids, alkalies, hydrogen sulfide and other corrosive products. It meets all state VOC regulations and is safe to use. Application of a penetrating epoxy primer/sealer is often recommended to improve adhesion to brick and concrete surfaces. It cures in eight hours at 77 degrees F, creating a monolithic, easy-to-clean, ceramic-like finish that speeds flow of sewage through the pipe. 440/234-2900; www.international-pc.com/northamerica.