Unifrax Excelfrax® 200 VIP Vacuum Insulation Panel

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Unifrax Excelfrax® 200 VIP Vacuum Insulation Panel
Categories:	Ceramic; Oxide; Silicon Oxide
Material Notes:	Excelfrax® 200 VIP is a Vaccum Insulation Panel (VIP) designed to provide insulation at temperatures between -300°F and +300°F. This thermal insulation provides extremely low thermal conductivity by reducing the heat transfer due to convection and conduction. Welded in polyethylene (PE) film under vacuum, the low thermal conductivity values of Excelfrax 200 VIP are due to low inner pressure. Its insulating value provides equipment designers and users with advantages such as design flexibility by reducing insulation space requirements in appliances, increased volume in commercial and domestic refrigerators, reduction in package size and weight of insulated shipping containers, increased volume for cargo in insulated shipping containers, and allows for longer shipping times/distances for temperature-controlled transportation systems. Typical Applications Residential and industrial refrigerators Insulated packaging/shipping containers Refrigerated trucks/transportation systems Marine/Recreational Vehicle refrigerators Vending machines Cold storage units Information Provided by Unifrax I LLC
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Physical Properties	Metric	English	Comments

Density	0.186 g/cc	0.00671 lb/in³

Mechanical Properties	Metric	English	Comments
Compressive Strength	3.45 MPa	500 psi	Cold Crushing Strength; DIN 51067 / DIN 53421
Compression Set	7.0 % @Pressure 0.100 MPa	7.0 % @Pressure 14.5 psi

Thermal Properties	Metric	English	Comments
Specific Heat Capacity	0.800 J/g-°C @Temperature 32.0 - 800 °C	0.191 BTU/lb-°F @Temperature 89.6 - 1470 °F
Thermal Conductivity	0.00363 W/m-K @Pressure <=0.00100 MPa	0.0252 BTU-in/hr-ft²-°F @Pressure <=0.145 psi
	0.00366 W/m-K @Pressure 0.100 MPa	0.0254 BTU-in/hr-ft²-°F @Pressure 14.5 psi
	0.00375 W/m-K @Pressure 1.00 MPa	0.0260 BTU-in/hr-ft²-°F @Pressure 145 psi
	0.00425 W/m-K @Pressure 10.0 MPa	0.0295 BTU-in/hr-ft²-°F @Pressure 1450 psi
	0.00484 W/m-K @Pressure 25.0 MPa	0.0336 BTU-in/hr-ft²-°F @Pressure 3630 psi
Maximum Service Temperature, Air	90.0 °C	194 °F	Recommended Operating Temperature
Minimum Service Temperature, Air	-30.0 °C	-22.0 °F	Recommended Operating Temperature
Shrinkage	0.030 % @Temperature 50.0 °C	0.030 % @Temperature 122 °F	All sides, long term
	0.10 % @Temperature 100 °C	0.10 % @Temperature 212 °F	All sides, long term

Component Elements Properties	Metric	English	Comments
SiC	15 %	15 %
SiO2	80 %	80 %

Descriptive Properties
Color	Silver
Heat Flux (W/m²-K)	0.187		<.001
	0.188		0.1
	0.193		1
	0.219		10
	0.249		25
Other Inorganics (%)	5

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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