- HS Zirconia Blocks Wieland
Zirconia Blocks
# 101975
Feature
Frist Grade Zirconia Powder. We Beat Any Price On The Market - Guaranteed!
FDA CERTIFIED
* We choose the best Zirconia powder and utilize a COLD ISOSTATIC PRESSING system to form shapes. Isotactic pressing is the method of creating ceramic blocks from dry powder and applying uniform pressure from all directions.
* The process involves enclosing the powder into a deformable mold and collapsing the mold using a fluid medium to apply hydrostatic pressure.
* The main advantage of isotactic pressing is the uniform application of pressure, which leads to a very homogeneous density and shrinkage, yielding a very reproducible process.
* The production cost by using isotactic pressing is much higher than UNIAXEL DRY PRESSING. But the quality is also much higher. All Zirconia blocks come with a lifetime warranty Zirconia Blocks Color
* Our Zirconia blocks, are Standard LL0.5
* For darker shades liquid Coloring is available in the following: *LL1 *LL2 *LL3 *LL4 *LL5 as the darkest shade.
* Coloring for Full contour is also available in 16 Vita shades: *A1 *A2 *A3 *A4 ... *D4 Special stains for cervical, gum, and occlusal are available in Pink, Grey and Ochre.
Zirconia Blocks Chemical compositions:
* ZrO2+HfO2+Y2O3 99.6 %
* Y2O3 5.2 %
* Al2O3 0.5 %
* Bending Strengh 1200 Mpa
* Vickers Hardness 12.8 Gpa
Firing Instruction Firing time:
Firing Chart:
* Sinterization temperature 1600 Celsius 2 hours
* Shrinkage adjusted for 20% RT to 1550-1630 degrees Celsius at 4-5 Celsius per minute, according to the job size.
* Some technicians prefer a lower temperature , others a higher one, which will give more translucency to the piece.
* Cool off at 5 Celsius per minute, until 200 Celsius, not before.
Then open door. Dont forget to decontaminate your sinter oven once a week, or at least once a month. This advice is for every sinter oven in the market, regardless of brand name, or origin.
Size: 98.5 mm x 18 mm
Package: 1 Round Blocks per box
Made in China
