Ivoclar Vivadent IPS d.SIGN - Manual (Page 44)

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The stains may be fired with a separate stain firing. If only
minor shade adjustments and individualized characterizations
are applied, however, the materials may be fired together
with the glaze firing.
Avoid pooling and the application of too thick
layers.
More intensive shades are achieved by several staining
procedures, not by applying thicker layers.
If the desired shade is not achieved, repeat the stain firing
using the same firing parameters.
Firing parameters for the stain and
characterization firing
T
830°C
1526°F
B
403°C
757°F
S
4 min.
4 min.
t
60°C
108°F
H
1–2 min.
1–2 min.
V
1
450°C
842°F
V
2
829°C
1524°F
➚
Important
If furnaces of other manufacturers are used, these
parameters have to be adjusted accordingly.
… such as discoloration or enamel stains.
Subsequently, the restoration is fired using the firing parameters for the stain and characterization firing.
Check the shade after the stain and characterization firing.