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| Products | Vermiculite refractory insulation blocks for building ventilation ducts |
| Material | Vermiculite |
| Category | Refractory insulation block |
| Application field | Building ventilation ducts |
| Machinable thickness range(mm) | 8~85 |
| Operating temperature(℃) | ≤1200 |
| 1050℃Ignition loss | ≤6 |
| Compressive strength(Mpa) | 4.5 |
| Bending strength(Mpa) | 2 |
| Heating wire shrinkage percentage (@12H 1000℃) | <1 |
| Heating linear expansion rate K1(@20-750℃) | 11x10-6 |
| Porosity(%) | 73 |
| Standard board density can be processed range(kg/m3) | 400~1000 |
| Thermal Conductivity(W/m.k) | 200℃ —— 0.14 400℃ —— 0.16 600℃ —— 0.17 800℃ —— 0.19 |








