Kaowool Blanket

Note: This is a variation of Kaowool Blanket Products (1800ºF – 2600ºF Insulation Blankets).

Kaowool Blanket, Cerawool® Blanket, Cerablanket®, Cerachem® Blanket and Cerachrome® Blanket are air laid into a continuous mat and mechanically needled for added strength and surface integrity. Blanket products do not contain organic binders. Thermal Ceramic Blankets providcell namexcellent resistance to chemical attack. Exceptions include hydrofluoric acid, phosphoric acid, and strong alkalies (ie. Na2O, K2O). Thermal Ceramic Blankets arc unaffected by oil or water. Thermal and physical properties are restored after drying.

Specifications

Thermal Conductivity at 500ºF (260ºC)0.44 BTU-in/hr-ft²-ºF at 8 pcf
0.47 BTU-in/hr-ft²-ºF at 6 pcf
0.54 BTU-in/hr-ft²-ºF at 4 pcf
Melting Point ( ºC )1760
Melting Point ( ºF )3200
Military Specifications and ApprovalsMil-1-231228B - 6, 8 blanket
Mil-1-23128A - 3, 6 pcf blanket
Mil-1-24244 - All blankets
Water Leachable Elements on Surface of Fiber, Typical QuantitiesBoron - 40
Chlorine - <10
Fluorine - <5
Silicate - 125
Sodium - 10
Sulphur - 10
Acoustical Performance per ASTM C-423 A and E-795, Sound Absorption Coefficient (1" - 4 pcf)0.29 at 250 Hz
0.85 at NRC
0.98 at 4000 Hz
0.99 at 2000 Hz
1.00 at 500 Hz
1.04 at 1000 Hz
Acoustical Performance per ASTM C-423 A and E-795, Sound Absorption Coefficient (1" - 8 pcf)0.50 at 250 Hz
0.80 at NRC
0.91 at 1000 Hz
0.91 at 2000 Hz
0.92 at 500 Hz
0.94 at 4000 Hz
Acoustical Performance per ASTM C-423 A and E-795, Sound Absorption Coefficient (2" - 4 pcf)0.92 at 250 Hz
1.00 at NRC
1.01 at 1000 Hz
1.01 at 500 Hz
1.03 at 2000 Hz
1.10 at 4000 Hz
Acoustical Performance per ASTM C-423 A and E-795, Sound Absorption Coefficient (2" - 8 pcf)0.72 at 500 Hz
0.80 at 250 Hz
0.85 at NRC
0.86 at 1000 Hz
0.92 at 2000 Hz
1.02 at 4000 Hz
Density ( lb/ft³ )3
4
6
8
12
Thermal Conductivity at 1000ºF (540ºC)0.87 BTU-in/hr-ft²-ºF at 8 pcf
1.01 BTU-in/hr-ft²-ºF at 6 pcf
1.29 BTU-in/hr-ft²-ºF at 4 pcf
Thermal Conductivity at 1500ºF (816ºC)1.45 BTU-in/hr-ft²-ºF at 8 pcf
1.73 BTU-in/hr-ft²-ºF at 6 pcf
2.30 BTU-in/hr-ft²-ºF at 4 pcf
ColorTan
Thickness ( in )1/8 to 2
Thickness ( mm )3.125 to 50
Maximum Temperature Rating ( ºC )1260
Maximum Temperature Rating ( ºF )2300
Maximum Cont. Use Limit ( ºC )1093
Maximum Cont. Use Limit ( ºF )2000
Nominal Chemical AnalysisAlkalies, as, Na2O - 0.2
Alumina, Al2O3 - 45
Boron Oxide, B2O3 - 0.08
Calcium oxide , CaO - 0.1
Ferric oxide, Fe2O3 - 1.0
Magnesium oxide, MgO - Trace
Silica, SiO2 - 50-55
Titanium oxide, TiO2 - 1.7
Thermal Conductivity at 1800ºF (837ºC)1.83 BTU-in/hr-ft²-ºF at 8 pcf
2.19 BTU-in/hr-ft²-ºF at 6 pcf
2.96 BTU-in/hr-ft²-ºF at 4 pcf

Additional Information

Kaowool blanket is produced from kaolin, a naturally occurring alumina-silica fire clay. Kaowool, the world’s most recognizable name in ceramic fiber blanket, is available in a wide variety of densities and sizes. Kaowool blanket offers excellent handleability and high temperature stability. This allows it to meet a wide range of hot face and backup insulation applications in furnaces, kilns and other equipment requiring high temperature heat containment.

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