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
Price	EMAIL US sales@lookpolymers.com
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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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