Composition 64 Potassium perchlorate 15 Aluminium (German black) 5 Aluminium (American dark) 5 Aluminium (bright flake) 1 Aluminium (atomized) 5 Magnesium (400 mesh) 5 Magnesium (200 mesh) 2 Cab-O-Sil 2 Wood dust 1 Potassium dichromateDescriptionCAUTION: Magnesium-based flash powders are more sensitive and violent than those made with aluminum. Individuals inexperienced with flash are encouraged to avoid such compositions. Source: Gregory
