Shanghai YUWA Dental Material Co.,Ltd
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Exactly VITA Shade Guide Classic Color
Opaque Powder A3.5 Easy Using
This is metal use dental opaque powder. After first fired of washing opaque, we build this
opaque powder A3.5 as second and third layer. This opaque powder can help to cover the
color of metal very well, also offer prefect bonding strength of the metal. It will not show
yellowrish like some other opaque. If you use the NiCr pocelain metal with Be, like VB or
C-mark metal, you can use this opaque powder A3.5 directly without washing opaque or
basic opaque, also this opaque powder can cover the color of metal quite well. Dental labs
technicans can use this opaque powder classic A3.5 once or twice as he/she wish. After
firing, you will find there are no bubbles on the surface of opaque, it's quite easy for labs
technicans to build dentine as third step. Nowadays, this opaque powder classic A3.5 is very
popular in east Asia. Dentist choose the color by VITA shade guide easily. Then the dental
labs technicans just follow the color choosen by dentists.
This is our Opaque Powder A3.5 Composition:
SiO2: 35~65
Al2O3: 10~25
K2O: 8~15
TiO2:5~15
CeO2: 4~12
Pigment: 0~12
The Characteristics of Opaque Powder A3.5:
1. Cover the color of metal quite well, no showing yellowrish.
2. No bubbles and cracks on the surface of opaque after firing.
3. Quite easy for using and very good price.
4. Prefect bonding strength of porcelain fused to alloy or washing opaque.
This is the Firing Schedule of Opaque Powder:
|
type problem |
WO |
OP |
|
Preheat Temp(℃) |
600 |
600 |
|
Drying Time (Min) |
2 |
2 |
|
Heat Time(Min) |
6 |
6 |
|
Final Temp(℃) |
950 |
930 |
|
Holding Time(Min) |
1 |
1 |
|
Vacuum Start(℃) |
600 |
600 |
|
Vacuum Time(Min) |
6 |
6 |