shaped refractory material
Lightweight Silica Brick
Insulation layer of glass furnace arch roofs, regenerator chambers of coke ovens, high-temperature insulation zones of hot blast stoves, backing insulation of silica brick kilns, insulation layers of high-temperature tunnel kilns, and outer insulation of high-temperature kilns without alkaline atmospheres.
| Grade | Bulk Density | Long-term Service Temp. | Typical Applications |
| Q‑Si‑1.0 | 1.0g/cm³ | ≤1500℃ | Insulation priority |
| Q‑Si‑1.1 | 1.1g/cm³ | ≤1520℃ | Balanced grade |
| Q‑Si‑1.2 | 1.2g/cm³ | ≤1550℃ | Higher strength |