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Master Bond adhesives

Parker Chomerics POLASHEET® Metal EMI Gasket
Categories: Polymer; Thermoset; Silicone

Material Notes: Description: POLASHEET gasketing are composite EMI shielding and weather sealing materials. Either solid or sponge silicone may be specified as the weather seal. In POLASHEET gasketing individual monel or aluminum wires embedded in the silicone and oriented perpendicular to mating flange surfaces provide the EMI shielding. Wires are crimped for resiliency. Solid silicone POLASHEET gasketing is available with high-tack pressure-sensitive adhesive backing. POLASHEET gasketing with solid silicone weather seal are recommended for sealing under high pressure conditions.

Information provided by Chomerics

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Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 30 - 4030 - 40ASTM D2240
Tensile Strength >= 1.72 MPa>= 250 psiASTM D412
Elongation at Break >= 200 %>= 200 %ASTM D412
Tear Strength >= 7.89 kN/m>= 45.0 pliASTM D624
Compression Set 20 %20 %ASTM D395B
 
Electrical PropertiesMetricEnglishComments
Shielding Effectiveness  >= 35 dB
@Frequency 14000 Hz
>= 35 dB
@Frequency 14000 Hz
 >= 93 dB
@Frequency 1e+9 Hz
>= 93 dB
@Frequency 1e+9 Hz
 >= 102 dB
@Frequency 1.80e+7 Hz
>= 102 dB
@Frequency 1.80e+7 Hz
 
Thermal PropertiesMetricEnglishComments
Maximum Service Temperature, Air 204 °C399 °FSilicone Version
Minimum Service Temperature, Air -62.0 °C-79.6 °FSilicone Version
 
Descriptive Properties
ColorGray
Maximum Joint Unevenness, % of Gasket Height0.17Class B- Open-Close in Same Position
 0.17Class C- Completely Interchangeable
 0.2Class A- Permanently Closed
Wire Density, per sq. in.885 - 915 %

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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PCHOME270 / 130980

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