San blasting is a procedure to make a surface matt and texturized.
It consists in throwing micro particules, we use glass balls, throughout a pen with pressurized air.
We offer this customization for both steel nibs and gold ones. It is done befare the plating and engraving. We offer sandblasting the whole nib or partial nib, that means that part of the nib, normally the tines, will keep the shiny looking and the rest will be matt.
This technic increase a bit the nib stifness.
Here are some samples: