CUMILAG 23 insulation exhibit unique combination of chemical, mechanical stability and insulating properties. They are suitable for applications at service temperatures ranging from 1250 C to 1850 C. They can be directly exposed to flame, and combustion products.


Physical PropertiesUNITLimit ValueTypical Value
Maximum Hot Face Temperature°C12601260
Bulk Densitygm/cc0.60 max.0.55
Cold Crushing StrengthKg/cm210 min.0.55
Reheat Change (For 24 hrs.)%+/-1.5max.at1250°C-0.7at1250°C
Thermal Conductivity   
At 400°C Hot Face Temp.W/m K0.20 max.0.14
At 600°C Hot Face Temp.W/m K0.25 max.0.17
At 800°C Hot Face Temp.W/m K0.30 max.0.24
At 1000°C Hot Face Temp.W/m K0.35 max.0.26
At 1200°C Hot Face Temp.W/m K0.40 max.0.3
Chemical Analysis   
Al2O3%35.0 min.37.2
Fe2O3%1.0 max.0.8
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