Building a “Rust” Cabinet

Constructing your own humidity cabinet to blue metal is a first step in learning to apply a decorative and preservative finish to steel parts.

By Leo Radovich

There are a variety of processes, collectively known as “bluing”, which are used to achieve a blue or black finish on gun steel. Bluing is actually a type of controlled oxidation, a form of rust, that yields some protection to the metal. A common process requires the immersion of gun parts in a hot caustic bath, followed by rinsing and oiling after the desired color and intensity are achieved. This process is relatively quick and can be automated, which is why most large-scale manufacturers use it.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s