Five StarĀ® Epoxy Novolac Grout is a three-component, highly chemical resistant, 100% solids grout designed for industrial applications in aggressive chemical environments where exposure to concentrated acids, alkalis, corrosives or solvents can occur. Five StarĀ® Epoxy Novolac Grout has excellent flowability, is highly chemical resistant, and exhibits positive expansion when tested in accordance with ASTM C 827.