Photo Etched
Your design is transferred from a photographic negative onto a metal
surface.
Same principle as pictures taken by camera. The design is then etched
into the brass using an acid-reaction process.
All the acids and other impurities are carefully rinsed off. The indentations
are then filled with the enamel colors.
Colors are inserted by hand, one at a time, using different sized syringes.
The sheet of metal is then fired at 450°F for 12 to 15 minutes.
Pins are then cut out of the sheet according to your custom design. Non-colored
(raised) sections of the pin are then plated to a shiny gold finish.
An epoxy protective coating (dome) is then applied to protect the color
enamels from fading or cracking over time.
Compared to pins of cloisonné and die struck soft enamel, the
advantage to photo etched pins is that this process is less expensive
and lighter in weight. |