Let’s examine a method for rusting steel, which involves cleaning the steel with a degreaser, removing millscale by soaking or spraying with muriatic acid, and then rinsing the steel with clean water. The steel is then wet down with chlorine bleach, sprinkled lightly with salt, and allowed to dry before spraying a mixture of fresh hydrogen peroxide and muriatic acid.
The piece is then rinsed with clean water, and the rust is allowed to set in for a few days. The piece is then neutralized with baking soda, wiped with paint thinner, and heated with a torch to drive out any water in the metal.