Firearm Bluing

What is Bluing?

Bluing is a passivation process in which steel is partially protected against rust, and is named after the blue-black appearance of the resulting protective finish. It is used to improve corrosion resistance and reduce glare.

Types of Bluing

This is the most common method, involving a series of hot salt baths.

A simpler method using cold solutions, often for touch-ups.

An older method involving controlled rusting and carding.

What Are The Benefits of Bluing?

  • Improves corrosion resistance
  • Reduces glare and reflection
  • Enhances aesthetic appeal
  • Can increase the value of a firearm

The bluing process involves several crucial steps.

  • Cleaning: Remove all oils and contaminants from the surface of the steel.
  • Polishing: Smooth the surface to the desired finish.
  • Bluing: Apply the bluing solution through either hot or cold methods.
  • Neutralizing: Stop the bluing reaction with water or other neutralizers.
  • Oiling: Apply oil to protect and seal the blued surface.

To maintain the blued finish on a firearm, regular cleaning and oiling are recommended. Avoid harsh chemicals that can strip the bluing and always store the firearm in a dry environment to prevent rusting.

Contact Us

If you need help or want to know more about bluing, feel free to contact us and we would be more than happy to help you.


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