Ivoclar Vivadent IPS InLine System - Manual (Page 52)

52
Alloy processing / oxide firing
The cast metal framework is finished using tungsten carbide burs or ceramic-bonded grinding instruments. To make room
for the ceramic shoulder (labial or circular), the marginal area of the framework is reduced up to the inner edge of the
chamfer or shoulder preparation.
Surface finishing before blasting Carefully blast the framework with aluminium oxide Al
2
O
3
50–100 µm
(observe the instructions of the alloy manufacturer).
After blasting, clean the metal framework with a steam jet and allow to dry thoroughly.
Conduct the oxide firing according to the instructions of the manufacturer. After oxide firing, the framework should exhibit an evenly oxidized surface.