Bluing is a form of rust, and to protect it, a barrier to water, such as oil, must be applied. Coating finishes, on the other hand, act as barriers themselves that insulate the metal from moisture.

To use bluing to restore or deepen blue denim, use a more concentrated ratio of 1 teaspoon of bluing to 1 quart of water. When diluting liquid bluing, mix it in a glass or metal container, as ...

Use 80 to 100 psi for the metal and 30-40 psi for non-metal parts such as wood, fiberglass, plastic, or polymer. Anodized aluminum parts will require only 30-40 psi. There is no need to remove the ...

23 thoughts on “ Metal Magic: Heat Bluing Steel Clock Hands ” medix says: March 23, 2016 ... That knurling pattern on the edge of the clock face seems much more interesting to me than these ...