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Contact SupplierFused Silica Powder 90 is an excellent filler of FBE powder coating. Fused Silica Powder is made of pure Crystal Silica by electrically fusing (fusing temperature 1800-2000oC) to amorphous Silicon dioxide. Then Fused Silica Powder is classed to different grades by manual and then specially engineered to powder by ball mill. Also, Fused Silica Powder is used in coating, epoxy molding compound and so on.
Applications
| Color and particle shape | White/ angular |
|---|---|
| Hardness | 7Mohs |
| True Specific Gravity | 2.2g/cm3 |
| Softening poing | approx.16500C |
| Melting point | approx.17500C |
| Bulk Density | 0.9-1.1mt/m3 |
| Dielectric Constant | 3.8(1MHz) |
| Thermal Conductivity | 1.3w/m·k |
| Coefficient of thermal expansion | 0.5*10-6 |
| Laser particle size(D50) | 15-18μm |
|---|---|
| 325mesh passing | >90% |
Chemical Composition
| SiO2 | >99.85% |
| Al2O3 | <1800ppm |
| Fe2O3 | <35ppm |
| Na+ | <3ppm |
| Cl- | <3ppm |
| PH q | 5-7 |
| Magnetic material | <20ppm |