Cerawool 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 )4
6
8
Thermal Conductivity at 1000ºF (540ºC)0.93 BTU-in/hr-ft²-ºF at 8 pcf
1.06 BTU-in/hr-ft²-ºF at 6 pcf
1.34 BTU-in/hr-ft²-ºF at 4 pcf
Thermal Conductivity at 1500ºF (816ºC)1.60 BTU-in/hr-ft²-ºF at 8 pcf
1.90 BTU-in/hr-ft²-ºF at 6 pcf
2.48 BTU-in/hr-ft²-ºF at 4 pcf
ColorWhite
Thickness ( in )1/2 to 2
Thickness ( mm )12.5 to 50
Maximum Cont. Use Limit ( ºC )982
Maximum Cont. Use Limit ( ºF )1800
Nominal Chemical AnalysisAlkalies, as, Na2O - 0.2
Alumina, Al2O3 - 40-48
Calcium oxide , CaO - 0.05
Ferric oxide, Fe2O3 - 0.05
Magnesium oxide, MgO - 0.05
Other - 1-2
Silica, SiO2 - 50-54

Additional Information

Cerawool spun refractory fiber blankets are formed from alumina, siliccell namend other refractory oxides.
Cerawool blanket meets a wide range of backup insulation applications in furnace, kilns and other high-temperaturcell namequipment.

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