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CMA 72

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

CMA 72

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%
Flow (%) -ASTM C230
Vibration flow T0
170% 
Vibration flow T60
80% 
Working time (minutes)
After 20 seconds vibration
120 -180
Exothermic peak time
427
Compressive strength (MPa)
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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SECAR® Range

Global multi-references
for calcium aluminates

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