Polishing is the process that makes a surface smoother and shinier. The machinery used for polishing is called a “polishing bench” and uses special brushes and pastes.
The choice of the combination of these two parameters is critical: a high temperature on the surface of the pen during the passage of the brush could damage it in a visible and often irreversible way.

The right setting for polishing.

Photo of dry cleaning paste

The dry polishing paste to be applied to the brush.