Composition
35.56
Potassium nitrate (fine) 6.67
Sulfur 4.44
Charcoal 8.89
Sodium oxalate 24.44
Aluminium (dark pyro) 11.11
Aluminium (flake) 8.89
DextrinDescription
The particle sizes of aluminum powders will markedly affect the result. If Al bronze is available, you can use all 16 parts of it instead of the two different Al powders.
Add water and proceed as usual.