CMA 72 is the first inroad into a new generation of binder that provides highly reactive spinel, develops unique microstructure and gives rise to superior corrosion resistance. CMA 72 displays similar placing properties to SECAR® 71 and demonstrates synergetic effect with Peramin® AL.
Key Benefits:
* Unique binder obtained by co-sintering of calcium, magnesia and alumina based raw materials
* Effective way to distribute homogeneously ultra-fine spinel throughout the refractory matrix
* Similar placing properties to SECAR® 71 and high mechanical strength
* Synergetic effect when mixed with Peramin® AL to provide easy placing, high flow and dense structure
* Superior thermo-mechanical performance and better resistance to slag and molten metals
Typical properties of a castable based on CMA 72
| Formulation type | Alumina Spinel castable 18% CMA 72 |
| Water addition | 4% |
| Peramin® AL200 | 0.05% |
| Peramin® AL300 | 0.05% |
| Vibration flow T0 | 170% |
| Vibration flow T60 | 80% |
| After 20 seconds vibration | 120 -180 |
| Exothermic peak time | 427 |
| After drying at 110°C for 24 hours | 100 |
| After firing at 1100°C for 6 hours | 110 |
| After firing at 1500°C for 6 hours | 160 |
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