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Parker Chomerics POLASHEET® Metal EMI Gasket

Category Polymer , Thermoset , Silicone
Manufacturer Parker Chomerics
Trade Name POLASHEET®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Parker Chomerics POLASHEET® Metal EMI Gasket.pdf
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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
Mechanical Properties Metric English Comments
Hardness, Shore A 30 - 40
30 - 40
ASTM D2240
Tensile Strength >= 1.72 MPa
>= 250 psi
ASTM D412
Elongation at Break >= 200 %
>= 200 %
ASTM D412
Tear Strength >= 7.89 kN/m
>= 45.0 pli
ASTM D624
Compression Set 20 %
20 %
ASTM D395B
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 204 °C
399 °F
Silicone Version
Minimum Service Temperature, Air -62.0 °C
-79.6 °F
Silicone Version
Electrical Properties Metric English Comments
Shielding Effectiveness >= 35 dB

@Frequency 14000 Hz
>= 35 dB

@Frequency 14000 Hz
>= 93 dB

@Frequency 1.00e+9 Hz
>= 93 dB

@Frequency 1.00e+9 Hz
>= 102 dB

@Frequency 1.80e+7 Hz
>= 102 dB

@Frequency 1.80e+7 Hz
Descriptive Properties Value Comments
Color Gray
Maximum Joint Unevenness, % of Gasket Height 0.17
Class B- Open-Close in Same Position
0.17
Class C- Completely Interchangeable
0.2
Class A- Permanently Closed
Wire Density, per sq. in. 885 - 915 %
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