Cold burnishing
Cold burnishing is a manual process used to protect against the oxidation of the tin/silver-soldered barrels of firearms or of other parts that are unsuited to hot burnishing.
The cold burnishing process is carried out over several phases that can take as long as a week to complete.
Like hot burnishing, cold burnishing yields a classic black gunmetal effect.
![](https://www.brugar.com/wp-content/uploads/2023/02/brugar-lavorazioni-brunitura-a-freddo-lavorazione-01-1024x683.jpg)
![](https://www.brugar.com/wp-content/uploads/2023/02/brugar-lavorazioni-brunitura-a-freddo-lavorazione-02-1024x1024.jpg)
![](https://www.brugar.com/wp-content/uploads/2023/02/brugar-lavorazioni-brunitura-a-freddo-lavorazione-03-1024x1024.jpg)
![](https://www.brugar.com/wp-content/uploads/2023/02/brugar-lavorazioni-brunitura-a-freddo-lavorazione-04-1024x683.jpg)
![](https://www.brugar.com/wp-content/uploads/2023/02/brugar-lavorazioni-brunitura-a-freddo-lavorazione-05-1024x1024.jpg)
![](https://www.brugar.com/wp-content/uploads/2023/01/BRUGAR_logo_floreale.png)