Opaque Powder VITA Classic Color A4
Dental Porcelain Material
Opaque powder classic color A4 is our new products for metal using, total
16 colors,
following VITA shade guide. Paste opaque classic color A4 will be used after first fired
washing opaque, helping to cover the color of metal. The labs can build the teeth
by this
classic color A4 opaque powder once or twice depanding on the labs technicans. Even you
can build this classic color A4 opaque powder directly withour washing opaque when you
use nickel chrome porcelain with Be. Nowadays a lot of labs choose our opaque powder
instead of others, because of the good quality and color. You will be surprised at the quite
prefect bonding strength of this paste opaque.
The Firing Schedule of A4 Opaque Powder:
1. Preheat Temp: 600℃
2. Drying Time: 2 min
3. Heat Time: 6 min
4. Final Temp: 930℃
5. Holding Time: 1 min
6. Vacuum Start: 600℃
7. Vacuum Time: 6 min
Opaque Powder A4 Compositon is Following:
SiO2: 35~65 |
Al2O3: 10~25 |
K2O: 8~15 |
TiO2:5~15 |
CeO2: 4~12 |
Pigment: 0~12 |
The Characteristics of A4 Opaque Powder:
- Cover the color of metal quite well, no yellowrish.
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- No bubbles and cracks on the surface of opaque after firing.
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- Very easy for using, especially for new staff and very reasonable
price.
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- Prefect bonding strength of porcelain fused to alloy or washing
opaque.
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