Thermal Ceramics Kaowool 822 Millboard

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Thermal Ceramics Kaowool 822 Millboard
Categories:	Ceramic; Oxide; Silicon Oxide
Material Notes:	Thermal Ceramics Kaowool Millboard products are processed from a slurry consisting of Kaowool ceramic fibers, fillers and binders. The fiber raw material is Kaolin, a naturally occurring high-purity alumina-silica fireclay. Kaowool Millboard products are strong, thin, durable ceramic fiber based boards having a variety of high-temperature applications. Although these products were formulated and designed to replace asbestos millboard, their potential use extends into more conventional refractory fiber applications. Their use should be considered whenever there is a need for a thin, durable board with excellent insulating characteristics. Features: Asbestos replacement millboard Thin durable insulation and gasketing Easy to install Thickness tolerance of ± 0.0315" (0.7875 mm) Suitable for saw or die cutting Excellent backup insulation Grade 830 excellent for molten metal contact applications 2000°F to 2700°F (1482°C) use limits Applications: High-temperature gaskets High-temperature roll covering Fire protection Thermal barrier Backup insulation in rotary kilns Information provided by Thermal Ceramics Data has not been recently verified. Please contact manufacturer for current information.
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Physical Properties	Original Value	Comments

Density	0.881 g/cc
Moisture Absorption	0.50 %
Loss On Ignition	5.0 - 7.0 % @Temperature 538 °C

Mechanical Properties	Original Value	Comments
Modulus of Rupture	0.650 - 0.750 ksi
Compressive Yield Strength	0.340 - 0.510 MPa	at 5% deformation
	0.690 - 0.860 MPa	at 10% deformation
	1.72 - 2.06 MPa	at 15% deformation

Thermal Properties	Original Value	Comments
Thermal Conductivity	0.800 BTU-in/hr-ft²-°F @Temperature 260 °C
	0.890 BTU-in/hr-ft²-°F @Temperature 538 °C
	0.980 BTU-in/hr-ft²-°F @Temperature 816 °C
	1.08 BTU-in/hr-ft²-°F @Temperature 1090 °C
Melting Point	3200 °F
Maximum Service Temperature, Air	2000 °F

Component Elements Properties	Original Value	Comments
Al2O3	35 %
Other	6.0 - 8.0 %
SiO2	63 %

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