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How to Do Slow Rust Bluing

True slow rust bluing is only achieved by age. After regular use, some metals will develop a blue-colored rust when exposed to certain levels of humidity and other environmental factors. This can take 12 to 15 years to begin to appear. Because it is a sought-after finish, however, chemicals have been developed which will cause this particular type of oxidation in a much shorter time period. This finish is particularly popular on guns, such as older Lugers.

Things You'll Need

320 grit sandpaper
Rust bluing solution
Sponge
Boiling water
Steel wool

Instructions

- 1
  Sand out all pits and polish the metal with 320 grit sandpaper.
- 2
  Use a sponge or soft brush to apply the bluing solution to all parts of the metal. Place the metal in a warm and humid location for a minimum of three hours. Waiting 24 hours or more will make the process more efficient.
- 3
  Submerge the metal in boiling, distilled water. Allow to sit for five minutes, then remove carefully with tongs. Gently sand the metal with 0000 steel wool. You will see the finish begin to emerge.
- 4
  Repeat the application until the desired finish is achieved.

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