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Parker Chomerics CHO-SEAL 1298 EMI Shielding Material

Category Polymer , Thermoset , Fluoropolymer, TS , Rubber or Thermoset Elastomer (TSE)
Manufacturer Parker Chomerics
Trade Name CHO-SEAL
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Parker Chomerics CHO-SEAL 1298 EMI Shielding Material.pdf
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Material Notes:
Corrosion Resistant EMI Shielding Gasket. Through the use of new proprietary particle painting and elastomer compounding technology, CHO-SEAL® 1298 shielding elastomer offers a six-fold increase in corrosion resistance over products previously available. In fact, a virtually corrosion-proof EMI flange system is obtained when CHO-SEAL 1298 gaskets are used in conjunction with Chomerics CHO-SHIELD® 2000 series corrosion resistant coatings on aluminum flanges.Information provided by Chomerics
Physical Properties Metric English Comments
Specific Gravity 1.75 - 2.25 g/cc
1.75 - 2.25 g/cc
ASTM D792
Mechanical Properties Metric English Comments
Hardness, Shore A 63 - 77
63 - 77
ASTM D2240
Tensile Strength at Break >= 1.24 MPa
>= 180 psi
ASTM D412
Elongation at Break 60 - 260 %
60 - 260 %
ASTM D412
Tear Strength 6.13 kN/m
35.0 pli
ASTM D624
Compression Set <= 30 %

@Temperature 100 °C,
Time 252000 sec
<= 30 %

@Temperature 212 °F,
Time 70.0 hour
ASTM D395 Method B
Thermal Properties Metric English Comments
Thermal Conductivity 1.20 W/m-K

@Pressure 2.07 MPa
8.33 BTU-in/hr-ft²-°F

@Pressure 300 psi
ASTM D5470
Maximum Service Temperature, Air 200 °C
392 °F
Minimum Service Temperature, Air -55.0 °C
-67.0 °F
Flex TR10; ASTM D1329
Electrical Properties Metric English Comments
Volume Resistivity <= 0.012 ohm-cm
<= 0.012 ohm-cm
MIL-DTL-83528
<= 0.015 ohm-cm
<= 0.015 ohm-cm
Life Test/Post Tensile; MIL-DTL-83528 Para.4.6.12
Shielding Effectiveness >= 55 dB

@Frequency 200000 Hz
>= 55 dB

@Frequency 200000 Hz
H Field; MIL-DTL-83528 Para.4.6.12
>= 75 dB

@Frequency 4.00e+10 Hz
>= 75 dB

@Frequency 4.00e+10 Hz
Plane Wave; MIL-DTL-83528 Para.4.6.12
>= 90 dB

@Frequency 1.00e+10 Hz
>= 90 dB

@Frequency 1.00e+10 Hz
Plane Wave; MIL-DTL-83528 Para.4.6.12
>= 95 dB

@Frequency 2.00e+9 Hz
>= 95 dB

@Frequency 2.00e+9 Hz
Plane Wave; MIL-DTL-83528 Para.4.6.12
>= 100 dB

@Frequency 5.00e+8 Hz
>= 100 dB

@Frequency 5.00e+8 Hz
E Field; MIL-DTL-83528 Para.4.6.12
>= 110 dB

@Frequency 1.00e+8 Hz
>= 110 dB

@Frequency 1.00e+8 Hz
E Field; MIL-DTL-83528 Para.4.6.12
Descriptive Properties Value Comments
Binder Fluorosilicone
EMP Survivability >0.9 kA / in
MIL-DTL-83528 Para.4.6.16
Filler Passivated Ag/Al
Gravimetric Weight Loss, mg 3.5
Heat Aging <0.015 ohm-cm
MIL-DTL-83528 Para.4.6.15
Type D
MIL-DTL-83528
Vibration Resistance, After <0.012 ohm-cm
MIL-DTL-83528 Para.4.6.13
Vibration Resistance, During, ohm-cm max <0.015 ohm-cm
MIL-DTL-83528 Para.4.6.13
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