Fire resistance
100 mm Single MgO-Lined Rock Wool Panel
180 min under the reported test conditions
GBTG100571122
Read Results & Test Conditions
A commissioned test report covering a 100 mm single glass-magnesium (MgO) and rock wool panel, including listed material properties and fire-resistance results.
Recorded Results
| Appearance | Pass |
|---|---|
| Panel thickness | 100 mm |
| Prepainted steel facing thickness | 0.5 mm |
| MgO board layer thickness | 5 mm |
| Density (as labelled in report) | 120 kg/m³ |
| Thermal conductivity | 0.038 W/(m·K) |
| Tensile strength | 65 kPa |
| Moisture absorption by mass | 2.1 % |
| Water repellency | 99.5 % |
| Acidity coefficient | 1.8 |
| Fire resistance under reported test conditions | 180 min |
Sample and Test Conditions
- Three client-submitted specimens. The reported layers include 0.5 mm prepainted steel facing and a 5 mm MgO board layer.
- At 180 min, mean unexposed-face temperature rise was 89 °C and maximum rise was 97 °C.
- Density and thermal-conductivity values are transcribed using the original table labels; the table does not separately identify them as core-only or whole-panel values.
Results describe the submitted 100 mm construction. They do not establish the performance of a 50 mm panel or another build-up.
