Parker Chomerics SOFT-SHIELD® 4000 Low Closure Force, Foam Core EMI Gasket

Category	Polymer , Thermoset , Polyurethane, TS , Thermoset Polyurethane Foam, Unreinforced
Manufacturer	Parker Chomerics
Trade Name	SOFT-SHIELD®
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Parker Chomerics SOFT-SHIELD® 4000 Low Closure Force, Foam Core EMI Gasket.pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

Material Notes:

Description: Chomerics’ SOFT-SHIELD 4000 Series materials are low-cost, low closure force EMI gaskets that provide effective shielding and grounding of commercial electronic devices, indoor enclosures and industrial equipment. Their availability in thin cross sections makes them an ideal choice for access panel, back plane or I/O connector panel shielding. Rectangular in cross section, the 4000 Series materials are constructed of a closed cell urethane foam that is machine wrapped with a fabric-reinforced aluminum foil. This combination provides the shielding performance of foil and the conformability and toughness of fabric. Each material includes conductive, pressure-sensitive adhesive on one side, which provides a means of gasket attachment without compromising shielding performance. The fabric-reinforced foil covering has no loose conductive fibers or sharp edges. Low compression set, low surface resistivities, and durability make 4000 Series gasketing an excellent EMI shielding solution.Information provided by Chomerics

Mechanical Properties	Metric	English	Comments
Peel Strength	0.438 kN/m	2.50 pli	To Aluminum, Ambient Temperature; ASTM D1000
	0.438 kN/m	2.50 pli	To Steel, Ambient Temperature; ASTM D1000
	0.525 kN/m @Treatment Temp. 177 °C, Time 173000 sec	3.00 pli @Treatment Temp. 351 °F, Time 48.0 hour	To Steel; ASTM D1000
	0.5425 kN/m @Treatment Temp. 177 °C, Time 173000 sec	3.096 pli @Treatment Temp. 351 °F, Time 48.0 hour	To Aluminum; ASTM D1000
	0.6825 kN/m @Treatment Temp. 177 °C, Time 3600 sec	3.894 pli @Treatment Temp. 351 °F, Time 1.00 hour	To Steel; ASTM D1000
	0.700 kN/m @Treatment Temp. 177 °C, Time 3600 sec	3.99 pli @Treatment Temp. 351 °F, Time 1.00 hour	To Aluminum; ASTM D1000
	0.700 kN/m @Treatment Temp. 74.0 °C, Time 173000 sec	3.99 pli @Treatment Temp. 165 °F, Time 48.0 hour	95% RH, To Steel; ASTM D1000
	0.7175 kN/m @Treatment Temp. 74.0 °C, Time 173000 sec	4.094 pli @Treatment Temp. 165 °F, Time 48.0 hour	95% RH, To Aluminum; ASTM D1000
	0.875 kN/m @Treatment Temp. 204 °C, Time 3600 sec	4.99 pli @Treatment Temp. 399 °F, Time 1.00 hour	To Steel; ASTM D1000
	0.8925 kN/m @Treatment Temp. 204 °C, Time 3600 sec	5.093 pli @Treatment Temp. 399 °F, Time 1.00 hour	To Aluminum; ASTM D1000
Taber Abrasion, mg/1000 Cycles	0.0070	0.0070	ASTM D460
	0.010	0.010
Compression Set	<= 20 %	<= 20 %	25% Deflection; ASTM D395 Method B

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	70.0 °C	158 °F
Flammability, UL94	HB	HB

Electrical Properties	Metric	English	Comments
Surface Resistivity per Square	0.0070 ohm @Temperature 121 °C, Time 605000 sec	0.0070 ohm @Temperature 250 °F, Time 168 hour	Initial; CHO-TM-TP57
	0.0070 ohm @Temperature 35.0 °C, Time 605000 sec	0.0070 ohm @Temperature 95.0 °F, Time 168 hour	95% RH, Initial; CHO-TM-TP57
	0.0090 ohm @Temperature 85.0 °C, Time 605000 sec	0.0090 ohm @Temperature 185 °F, Time 168 hour	Initial; CHO-TM-TP57
	0.010 ohm @Temperature 35.0 °C, Time 605000 sec	0.010 ohm @Temperature 95.0 °F, Time 168 hour	95% RH, Final; CHO-TM-TP57
	0.010 ohm @Temperature 70.0 °C, Time 7.88e+6 sec	0.010 ohm @Temperature 158 °F, Time 2190 hour	Initial; CHO-TM-TP57
	0.010 ohm @Temperature 70.0 °C, Time 7.88e+6 sec	0.010 ohm @Temperature 158 °F, Time 2190 hour	Final; CHO-TM-TP57
	0.014 ohm @Temperature 85.0 °C, Time 605000 sec	0.014 ohm @Temperature 185 °F, Time 168 hour	Final; CHO-TM-TP57
	0.017 ohm @Temperature 121 °C, Time 605000 sec	0.017 ohm @Temperature 250 °F, Time 168 hour	Final; CHO-TM-TP57
Shielding Effectiveness	80 dB @Frequency 1.00e+10 Hz	80 dB @Frequency 1.00e+10 Hz	CHO-TM-TP08
	90 dB @Frequency 1.00e+8 Hz	90 dB @Frequency 1.00e+8 Hz	CHO-TM-TP08
	93 dB @Frequency 1.00e+9 Hz	93 dB @Frequency 1.00e+9 Hz	CHO-TM-TP08

Descriptive Properties	Value	Comments
Adhesion	>2.5 lb/in	Initial PSA, ASTM D1000
Compression Cycling	10000 cycles at 50% Deflection, Final
	10000 cycles at 50% Deflection, Initial
Compression-Deflection, 25% deflection	<7 to <12 psi	ASTM D3574 Modified
Core	PORON Urethane Foam
Jacket	Fabric-Reinforced Aluminum Foil
PSA Type	Chomerics Electrically Conductive Acrylic

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