Description Eco Smart® Black Powder Brazing Flux • 250gm Jar • Dangerous Goods • Environmentally-friendly boric acid and borax free • Smooth consistency for easy application • Dissolves surface oxides and protects against oxidation during heating • Excellent adherence when heated rod is dipped into flux • Powder can be mixed with water or alcohol to form a paste, then applied to the base metal • Activity range of 700°F - 1800°F ° (371°C - 982°C) • Color change technology allows it to change colors when ready to use
