Description: Anti-Borax No. 8 is a powder flux for welding aluminum and aluminum based alloys, with a useful temperature range of 570° - 700°C/1050° – 1300°F. It was especially designed for welding 52-S, and the pure 2-S aluminum sheet employed in aircraft. The flux is an excellent solvent for aluminum oxide, promoting strong weld joints free of oxide inclusions. Applications: Anti-Borax No. 8 is used for the welding of aluminum metal and most common alloys in sheet, extruded and cast form. It works best with oxy-acetylene gas torches using 1100 series aluminum filler rod. It works well in selected induction and furnace applications. Information provided by Superior Flux |