Overview of materials for Silicone Rubber

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Overview of materials for Silicone Rubber
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE); Silicone; Silicone Rubber
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Silicone Rubber". 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	0.0400 - 3.80 g/cc	0.00145 - 0.137 lb/in³	Average value: 1.23 g/cc Grade Count:1698
Water Absorption	0.100 - 3.00 %	0.100 - 3.00 %	Average value: 1.52 % Grade Count:50
Viscosity	0.700 - 1.30e+7 cP	0.700 - 1.30e+7 cP	Average value: 315000 cP Grade Count:594
Molecular Weight	400000 - 900000 g/mol	400000 - 900000 g/mol	Average value: 662000 g/mol Grade Count:17
Thickness	12.7 - 52400 microns	0.500 - 2060 mil	Average value: 555 microns Grade Count:638
Linear Mold Shrinkage	0.00100 - 0.0350 cm/cm	0.00100 - 0.0350 in/in	Average value: 0.0188 cm/cm Grade Count:342
Outgassing - Total Mass Loss	0.300 - 1.07 %	0.300 - 1.07 %	Average value: 0.683 % Grade Count:7
	0.340 - 0.340 % @Temperature 218 - 218 °C	0.340 - 0.340 % @Temperature 425 - 425 °F	Average value: 0.340 % Grade Count:1
	0.340 - 0.340 % @Time 7200 - 7200 sec	0.340 - 0.340 % @Time 2.00 - 2.00 hour	Average value: 0.340 % Grade Count:1

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	1.00 - 95.0	1.00 - 95.0	Average value: 48.4 Grade Count:1973
Hardness, Shore D	14.5 - 95.2	14.5 - 95.2	Average value: 50.9 Grade Count:14
Hardness, Shore C	15.0 - 40.0	15.0 - 40.0	Average value: 28.3 Grade Count:3
Hardness, Shore OO	10.0 - 86.0	10.0 - 86.0	Average value: 44.9 Grade Count:30
Tensile Strength, Ultimate	0.138 - 165 MPa	20.0 - 23900 psi	Average value: 7.11 MPa Grade Count:1908
Tensile Strength, Yield	0.0448 - 145 MPa	6.50 - 21000 psi	Average value: 10.4 MPa Grade Count:67
Elongation at Break	5.00 - 1490 %	5.00 - 1490 %	Average value: 469 % Grade Count:1950
	300 - 300 % @Temperature 300 - 300 °C	300 - 300 % @Temperature 572 - 572 °F	Average value: 300 % Grade Count:1
Elongation at Yield	0.000 - 900 %	0.000 - 900 %	Average value: 470 % Grade Count:36
Modulus of Elasticity	0.000517 - 0.0621 GPa	0.0750 - 9.00 ksi	Average value: 0.0167 GPa Grade Count:29
Compressive Modulus	0.000200 - 0.00590 GPa	0.0290 - 0.856 ksi	Average value: 0.00208 GPa Grade Count:10
Resilience	25.0 - 65.0	25.0 - 65.0	Average value: 49.3 Grade Count:7
Rebound	25.0 - 71.0 %	25.0 - 71.0 %	Average value: 53.7 % Grade Count:170
Poissons Ratio	0.500	0.500	Average value: 0.500 Grade Count:40
Shear Modulus	0.00183 - 1.83 GPa	0.265 - 265 ksi	Average value: 0.511 GPa Grade Count:11
Shear Strength	0.200 - 6.05 MPa	29.0 - 878 psi	Average value: 2.42 MPa Grade Count:44
Adhesive Bond Strength	0.0103 - 1.30 MPa	1.50 - 189 psi	Average value: 0.174 MPa Grade Count:46
Penetration	10.0 - 300	10.0 - 300	Average value: 132 Grade Count:9
Penetration P(60), 1/10 mm	36.0 - 135	36.0 - 135	Average value: 70.0 Grade Count:3
Tear Strength Test	1.03 - 32.0	1.03 - 32.0	Average value: 11.4 Grade Count:3
Tear Strength	0.877 - 182 kN/m	5.00 - 1040 pli	Average value: 24.1 kN/m Grade Count:1437
	1.5777 - 2.2789 kN/m @Temperature 100 - 150 °C	9.0024 - 13.003 pli @Temperature 212 - 302 °F	Average value: 1.93 kN/m Grade Count:1
Peel Strength	0.0877 - 7.05 kN/m	0.500 - 40.2 pli	Average value: 1.30 kN/m Grade Count:376
Compression Set	2.10 - 200 %	2.10 - 200 %	Average value: 23.8 % Grade Count:638
Tensile Set	2.00 - 10.0 %	2.00 - 10.0 %	Average value: 7.48 % Grade Count:42

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00500 - 6.00e+16 ohm-cm	0.00500 - 6.00e+16 ohm-cm	Average value: 2.83e+15 ohm-cm Grade Count:223
Surface Resistance	230 - 1.00e+14 ohm	230 - 1.00e+14 ohm	Average value: 2.42e+13 ohm Grade Count:17
Shielding Effectiveness	55.0 - 141 dB	55.0 - 141 dB	Average value: 100 dB Grade Count:5
Dielectric Constant	2.00 - 35.0	2.00 - 35.0	Average value: 9.07 Grade Count:194
	2.50 - 3.00 @Temperature 90.0 - 150 °C	2.50 - 3.00 @Temperature 194 - 302 °F	Average value: 20.8 Grade Count:9
	24.5 - 27.7 @Temperature 65.0 - 90.0 °C	24.5 - 27.7 @Temperature 149 - 194 °F	Average value: 20.8 Grade Count:8
	24.5 - 27.7 @Frequency 60.0 - 60.0 Hz	24.5 - 27.7 @Frequency 60.0 - 60.0 Hz	Average value: 20.8 Grade Count:8
Dielectric Strength	1.14 - 118 kV/mm	29.0 - 3000 kV/in	Average value: 21.3 kV/mm Grade Count:711
Dissipation Factor	0.0000140 - 0.900	0.0000140 - 0.900	Average value: 0.0704 Grade Count:177
	0.500 - 0.700 @Temperature 130 - 150 °C	0.500 - 0.700 @Temperature 266 - 302 °F	Average value: 0.152 Grade Count:1
	0.0930 - 0.165 @Temperature 65.0 - 90.0 °C	0.0930 - 0.165 @Temperature 149 - 194 °F	Average value: 0.152 Grade Count:8
	0.0930 - 0.165 @Frequency 60.0 - 60.0 Hz	0.0930 - 0.165 @Frequency 60.0 - 60.0 Hz	Average value: 0.152 Grade Count:8
Dielectric Loss Index	0.00500 - 0.0500	0.00500 - 0.0500	Average value: 0.0200 Grade Count:6
Arc Resistance	60.0 - 420 sec	60.0 - 420 sec	Average value: 279 sec Grade Count:29
Track Resistance	3600 - 36000 sec	3600 - 36000 sec	Average value: 22300 sec Grade Count:17

Thermal Properties	Metric	English	Comments
CTE, linear	11.0 - 335 µm/m-°C	6.11 - 186 µin/in-°F	Average value: 175 µm/m-°C Grade Count:61
	265 - 1040 µm/m-°C @Temperature 0.000 - 90.0 °C	147 - 578 µin/in-°F @Temperature 32.0 - 194 °F	Average value: 525 µm/m-°C Grade Count:3
CTE, linear, Transverse to Flow	20.0 - 40.0 µm/m-°C	11.1 - 22.2 µin/in-°F	Average value: 33.3 µm/m-°C Grade Count:3
Specific Heat Capacity	0.320 - 1.26 J/g-°C	0.0765 - 0.301 BTU/lb-°F	Average value: 0.799 J/g-°C Grade Count:29
	0.820 - 0.900 J/g-°C @Temperature 100 - 100 °C	0.196 - 0.215 BTU/lb-°F @Temperature 212 - 212 °F	Average value: 0.837 J/g-°C Grade Count:15
Thermal Conductivity	0.0600 - 6.50 W/m-K	0.416 - 45.1 BTU-in/hr-ft²-°F	Average value: 0.870 W/m-K Grade Count:85
	0.150 - 3.3867 W/m-K @Temperature 30.0 - 150 °C	1.04 - 23.504 BTU-in/hr-ft²-°F @Temperature 86.0 - 302 °F	Average value: 1.59 W/m-K Grade Count:21
	1.50 - 4.69 W/m-K @Temperature 50.0 - 50.0 °C	10.4 - 32.5 BTU-in/hr-ft²-°F @Temperature 122 - 122 °F	Average value: 1.59 W/m-K Grade Count:4
	1.50 - 4.69 W/m-K @Pressure 30.0 - 30.0 MPa	10.4 - 32.5 BTU-in/hr-ft²-°F @Pressure 4350 - 4350 psi	Average value: 1.59 W/m-K Grade Count:4
Maximum Service Temperature, Air	93.0 - 316 °C	199 - 600 °F	Average value: 219 °C Grade Count:924
Maximum Service Temperature, Inert	154 - 260 °C	310 - 500 °F	Average value: 221 °C Grade Count:59
Minimum Service Temperature, Air	-136 - -40.0 °C	-212 - -40.0 °F	Average value: -57.5 °C Grade Count:894
Brittleness Temperature	-73.0 - -60.0 °C	-99.4 - -76.0 °F	Average value: -67.8 °C Grade Count:12
Glass Transition Temp, Tg	-120 - 118 °C	-184 - 244 °F	Average value: -106 °C Grade Count:37
UL RTI, Electrical	65.6 - 220 °C	150 - 428 °F	Average value: 210 °C Grade Count:135
UL RTI, Mechanical without Impact	65.6 - 220 °C	150 - 428 °F	Average value: 202 °C Grade Count:135
Flammability, UL94	HB - V-0	HB - V-0	Grade Count:244
Flash Point	-4.00 - 100 °C	24.8 - 212 °F	Average value: 69.1 °C Grade Count:13
Oxygen Index	28.0 - 35.0 %	28.0 - 35.0 %	Average value: 30.8 % Grade Count:5

Optical Properties	Metric	English	Comments
Refractive Index	1.39 - 1.41	1.39 - 1.41	Average value: 1.40 Grade Count:25
Transmission, Visible	20.0 - 98.0 %	20.0 - 98.0 %	Average value: 69.9 % Grade Count:361

Processing Properties	Metric	English	Comments
Processing Temperature	130 - 200 °C	266 - 392 °F	Average value: 174 °C Grade Count:36
Nozzle Temperature	20.0 °C	68.0 °F	Average value: 20.0 °C Grade Count:111
Mold Temperature	140 - 230 °C	284 - 446 °F	Average value: 185 °C Grade Count:113
Injection Pressure	5.00 - 15.0 MPa	725 - 2180 psi	Average value: 10.0 MPa Grade Count:111
Cure Time	0.167 - 20200 min	0.00278 - 336 hour	Average value: 787 min Grade Count:528
	1.00 - 1020 min @Temperature 40.0 - 249 °C	0.0167 - 17.0 hour @Temperature 104 - 480 °F	Average value: 52.9 min Grade Count:718
	5.00 - 15.0 min @Temperature 110 - 177 °C	0.0833 - 0.250 hour @Temperature 230 - 350 °F	Average value: 52.9 min Grade Count:350
	5.00 - 15.0 min @Pressure 0.0689 - 3.45 MPa	0.0833 - 0.250 hour @Pressure 10.0 - 500 psi	Average value: 52.9 min Grade Count:350
Tack-Free Time	25.0 - 45.0 min	0.417 - 0.750 hour	Average value: 35.0 min Grade Count:4
Pot Life	1.00 - 10100 min	1.00 - 10100 min	Average value: 1030 min Grade Count:349

Component Elements Properties	Metric	English	Comments
Loss on Ignition(%)	24.0 - 35.0 %	24.0 - 35.0 %	Average value: 30.3 % Grade Count:10

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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O5240 / 78478

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