SILICA FUME FOR REFRACTORY
Suntek Refractory Grade Silica Fume is supplied from strictly selected Silicon metal furnaces and processed by specific densify process under strict quality control process to ensure its excellent effect for refractory applications.
Character:
Good fluidity, improving the flow properties of refractory castables.
Small particle size and fine distribution, developing dense castables with low porosity.
Strong activity to design mullite matrix in the castables, improving strength at intermediate temperatures during heat-up and improve strength at high temperatures.
Chemical Composition:
Item | Unit | SUNTEK SF 94U | |
Guaranteed | Typical | ||
SiO2 | % | 94 min | 96 |
C | % | 1.5 max | 0.8 |
Fe2O3 | % | 0.8 max | 0.5 |
Al2O3 | % | 0.8 max | 0.5 |
CaO | % | 0.8 max | 0.5 |
MgO | % | 0.8 max | 0.5 |
Na2O+K2O | % | 1.3 max | 1.1 |
P2O5 | % | 0.1 max | 0.08 |
Cl | % | 0.1 max | 0.03 |
H2O | % | 1.5 max | 0.8 |
L.O.I | % | 3 | 2 |
Physical properties:
Residue (+45um) 3% max (typically 1.5)
PH 5 - 7 (typically 6.5)
Bulk density 250-450 kg/m3 (typically 350 kg/m3)
Packaging:
In 500kg bulk bags, 20 or 25kg plastic woven sacks, or according to customer’s specific request.
SILICA FUME FOR REFRACTORY
Suntek Refractory Grade Silica Fume is supplied from strictly selected Silicon metal furnaces and processed by specific densify process under strict quality control process to ensure its excellent effect for refractory applications.
Character:
Good fluidity, improving the flow properties of refractory castables.
Small particle size and fine distribution, developing dense castables with low porosity.
Strong activity to design mullite matrix in the castables, improving strength at intermediate temperatures during heat-up and improve strength at high temperatures.
Chemical Composition:
Item | Unit | SUNTEK SF 94U | |
Guaranteed | Typical | ||
SiO2 | % | 94 min | 96 |
C | % | 1.5 max | 0.8 |
Fe2O3 | % | 0.8 max | 0.5 |
Al2O3 | % | 0.8 max | 0.5 |
CaO | % | 0.8 max | 0.5 |
MgO | % | 0.8 max | 0.5 |
Na2O+K2O | % | 1.3 max | 1.1 |
P2O5 | % | 0.1 max | 0.08 |
Cl | % | 0.1 max | 0.03 |
H2O | % | 1.5 max | 0.8 |
L.O.I | % | 3 | 2 |
Physical properties:
Residue (+45um) 3% max (typically 1.5)
PH 5 - 7 (typically 6.5)
Bulk density 250-450 kg/m3 (typically 350 kg/m3)
Packaging:
In 500kg bulk bags, 20 or 25kg plastic woven sacks, or according to customer’s specific request.
