
Annealing
of the piece between 400°C and 700°C for glass or between
800°C and
1200°C for sapphire or silica is required to give the
desired color.
Ink concentration will determine the intensity and the
final color.

Some
coating require to be previously treated in a reducing environment.
RBnano HARC coating is designed to stick on these coatings and to
enhance transparency and anti-reflective properties. Other colors are
available and can be obtained on request.
Key
Features:
- coloring of surface which does NOT affect the properties of solid
- color of very high stability
- easy control of the color intensity
-simple, easily manageable process, does not require significant
technical skills
-low investment