Fused Silica is made of highest purity Chinese crystal Silica by electrically fusing (fusing temperature 1700-2000℃)to amorophos Silicon dioxide , then specially engineered ingots, granular and flour form designed for different usage. This product has a very low thermal conductivity and excellent thermal shock resistance.
Special Features:
- Near zero thermal expansion coefficient
- Excellent thermal shock resistance
- Pure(high SiO2 content,low Iron, Potassium & Sodium Oxide)
- Consistent Chemistry
- Statistically controlled particle size distribution
Main Applications:
- EMC (Epoxy Molding Compound)
- Investment Casting ,shell mould product
- Refractory & Ceramic materials
- Paint
- Others
Chemical Composition:
|
Item |
Ingot & Granule |
Powder |
|
SiO2 |
99.9% |
99.8% |
|
AL2O3 |
40ppm |
500ppm |
|
Fe2O3 |
40ppm |
50ppm |
|
Na2O |
40ppm |
50ppm |
|
K2O |
40ppm |
50ppm |
Physical Properties:
- Appearance: Transparent Ingots, Granule or White Powder
- Specific Gravity: 2.21
- Hardness( Mohs): 7.0
- PH: 5-7
- Whiteness: 94Min.
Size Available: (Ingot, Granules and powder):
(1) 3-10mm, 10-50mm, 8-5mm, 5-3mm, 3-1mm, 1-0.5mm, 1-0.2mm,0-0.5mm, 0.5-0.2mm,
0.5-0.1mm, 0.2-0.1mm, 0.5-1mm.
(2) -4+10mesh, -10+20mesh, -20+50mesh, -30+50mesh,-50+100mesh, -120F,
-200F, -325F, -400F, -600F. |
