... 1.5~2% 3)Powder,1kg/bag 4)competitive price sodium modifying fluxes,modifier)Applied to hypoeutectic Al -Si alloys 2 ... 4)Powder,1kg/bag Product TypeComposition(others are A1) Triplex Sodium modifying fluxes BZ3#Applied to hypoeutectic Al -Si alloysAmount of ... .5~2%Temperature of usage720~760°CPowder,1kg/bag Quadruplex Sodium modifying fluxesBZ4# Sodium modifying fluxes