BLACK MAGIC® SS patented oxidizing salts are a free-flowing, dust-free, granular composition used in water at a concentration of 4-3/4 lbs. per gallon of solution. The alkaline solution is used at a low boiling temperature of 250- 260°F. to blacken a wide variety of stainless steels. The solution is also capable of blackening cast and malleable irons as well as steel, although for superior quality finishes, Hubbard-Hall BLACK MAGIC® SS-C is recommended for cast iron and “Activated” Black Magic® “Plus” is recommended for steel.