CEM-KOTE FLEX CR is a highly flexible, fiber-reinforced, hydraulic cement based material. It is a two-component system consisting of dry Component A and liquid Component B. For additional tensile strength, it may be reinforced with REINFORCING FABRIC HD™. USES The primary use of CEM-KOTE FLEX CR is in waterproofing and protection of concrete structures exposed to sulfuric acid (generated by micro-biological oxidation of hydrogen sulfide). This includes concrete structures in wastewater treatment facilities (digesters, sludge tanks and clarifiers), manholes, and sewer systems. It is also used in waterproofing and restoration of concrete structures in thin sections, where superior flexibility, chemical resistance, and breathability are required. It protects and waterproofs structures subjected to various chemicals, such as concrete floors, tanks and secondary containment structures. It also provides excellent protection for concrete against carbonation.