With the information contained in this guide, you’ll be able to get your firearm reblued in no time. Charcoal or Carbonia bluing is only a myth to most gunsmiths. It is a very time-consuming and labor-intensive method that only a few professionals have figured out. This process is commonly referred to as “Colt Bluing,” as many Colt firearms were finished using this technique before World War II. Today, this process is very difficult for a small shop to do. In the early twentieth century, The American Gas Furnace Company established a large-scale industrial application of this process, making it possible for manufacturers like Colt and Smith & Wesson to use it. Ensure that the firearm is safely disassembled. This means breaking down the gun into its parts, such as the barrel, frame, slide, and smaller components. Cleaning Solvent

However, I do not recommend this DIY method unless you are pretty sure of what you are making and how.Usually, I make use of Birchwood Casey Perma Blue Liquid for bluing my firearm barrels – I must say that it’s one of the best gun blue kits on the market. Different colors can be achieved through variations of this method including quenching in oil instead of water. Unlike other ordinary gun blues, you will not need to apply the Birchwood Casey Super Blue over and over again. In just 2-3 rubs you can get the fine finishing you are looking at. This process is established by S&W sometime after WWI. Smith Wesson hired the American Gas Furnace Company to develop a bluing oil that included special whale oil. The guns were put in a rotating drum loaded with wheal oil and charcoal, and the drums were warmed in the oven while the oil/charcoal mix rotated around the parts inside the drum. Once done, boil your gun parts in distilled water to halt the rusting process instigated by the acid solution.

Oil and Reassemble: Apply gun oil to protect the finish and reassemble the firearm. Bluing Considerations Rust blue is mostly found on older firearms that predate the use of the much more efficient hot bluing method. It is also found on high-end custom firearms, as many consider it the top of the line as far as quality is concerned. The other major use of rust bluing is for double shotgun barrels. The temperatures reached during the boiling process are below the soft solder’s, making it safe to do without the risk of the barrels falling apart. How To Remove Rust From A Gun Without Damaging Bluing? - Ballachy". Archived from the original on March 23, 2023 . Retrieved 2021-08-30.

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Do not simply apply the bluing solution once. For a proper finish, you’ll likely need to apply it around seven times, using a new piece of steel wool to smooth out every new layer.