Anti-Borax No. 1 is a welding powder flux that is active in the temperature range of 815°-1540°C/1500°-2900°F. This flux is used to weld cast iron with a cast iron rod. Anti-Borax No. 1 promotes deep penetration of the joints, resulting in high bond strength. The formulation is fluoride-free. Anti-Borax No. 1 is used in farm machinery repair, engine repair, and maintenance. Information provided by Superior Flux |