Boiler bluing

• #0 Reply
  Posted by mauricedelaat on 06 Jun, 2021 19:10
• Hello Jurgen,
  
  True Blue is a product for carbon steel, especially made for gun bluing.
  They also have a product for brass, I checked out a video and the color is dark brown/black, I have never tried it for that reason.
  
  Maurice.
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