Overview of materials for Silicone Foam

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Overview of materials for Silicone Foam
Categories:	Polymer; Thermoset; Silicone; Silicone Foam
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Silicone Foam". Each property range of values reported is minimum and maximum values of appropriate MatWeb entries. The comments report the average value, and number of data points used to calculate the average. The values are not necessarily typical of any specific grade, especially less common values and those that can be most affected by additives or processing methods.
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Physical Properties	Metric	English	Comments

Density	0.104 - 1.64 g/cc	0.00376 - 0.0592 lb/in³	Average value: 0.410 g/cc Grade Count:43
Water Absorption	0.200 - 12.0 %	0.200 - 12.0 %	Average value: 4.15 % Grade Count:16
Viscosity	2.35 - 55000 cP	2.35 - 55000 cP	Average value: 13300 cP Grade Count:10

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	3.00 - 62.0	3.00 - 62.0	Average value: 23.1 Grade Count:8
Hardness, Shore OO	40.0 - 70.0	40.0 - 70.0	Average value: 50.5 Grade Count:5
Tensile Strength, Ultimate	0.0552 - 2.80 MPa	8.00 - 406 psi	Average value: 0.422 MPa Grade Count:21
Tensile Strength, Yield	0.172 - 1.24 MPa	25.0 - 180 psi	Average value: 0.616 MPa Grade Count:7
Elongation at Break	49.0 - 300 %	49.0 - 300 %	Average value: 113 % Grade Count:30
Compressive Yield Strength	0.00800 - 0.170 MPa	1.16 - 24.7 psi	Average value: 0.0659 MPa Grade Count:25
Compression Set	0.000 - 80.0 %	0.000 - 80.0 %	Average value: 12.8 % Grade Count:32

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000100 - 1.00e+14 ohm-cm	0.000100 - 1.00e+14 ohm-cm	Average value: 7.14e+13 ohm-cm Grade Count:7
Dielectric Constant	1.30 - 1.58	1.30 - 1.58	Average value: 1.39 Grade Count:6
Dielectric Strength	3.50 - 7.48 kV/mm	88.9 - 190 kV/in	Average value: 5.17 kV/mm Grade Count:13
Arc Resistance	90.0 - 123 sec	90.0 - 123 sec	Average value: 98.3 sec Grade Count:6

Thermal Properties	Metric	English	Comments
CTE, linear	324 - 324 µm/m-°C @Temperature 20.0 - 177 °C	180 - 180 µin/in-°F @Temperature 68.0 - 350 °F	Average value: 324 µm/m-°C Grade Count:6
Specific Heat Capacity	1.26 J/g-°C	0.300 BTU/lb-°F	Average value: 1.26 J/g-°C Grade Count:6
Thermal Conductivity	0.0600 - 0.163 W/m-K	0.416 - 1.13 BTU-in/hr-ft²-°F	Average value: 0.0992 W/m-K Grade Count:14
Maximum Service Temperature, Air	150 - 280 °C	302 - 536 °F	Average value: 219 °C Grade Count:18
Minimum Service Temperature, Air	-70.0 - -20.0 °C	-94.0 - -4.00 °F	Average value: -55.4 °C Grade Count:17
Brittleness Temperature	-55.0 °C	-67.0 °F	Average value: -55.0 °C Grade Count:5
Flammability, UL94	V-1 - V-0	V-1 - V-0	Grade Count:14
Flame Spread Index	11.5 - 25.0	11.5 - 25.0	Average value: 22.6 Grade Count:10
Smoke Density	1.50 - 50.0 min	1.50 - 50.0 min	Average value: 15.3 min Grade Count:15
Oxygen Index	34.0 - 44.0 %	34.0 - 44.0 %	Average value: 38.7 % Grade Count:6

Processing Properties	Metric	English	Comments
Cure Time	10.0 - 60.0 min	0.167 - 1.00 hour	Average value: 29.4 min Grade Count:7
	45.0 - 135 min @Temperature 100 - 150 °C	0.750 - 2.25 hour @Temperature 212 - 302 °F	Average value: 90.0 min Grade Count:2
Pot Life	0.500 - 240 min	0.500 - 240 min	Average value: 50.0 min Grade Count: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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