Parker Chomerics CHO-SHIELD® 579 Low VOC Silver Epoxy Coating

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Parker Chomerics CHO-SHIELD® 579 Low VOC Silver Epoxy Coating
Categories:	Polymer; Adhesive; Thermoset; Epoxy
Material Notes:	Description: CHO-SHIELD® 579 coating is a two component, silver-filled, highly conductive epoxy paint designed to provide EMI shielding when applied to a dielectric substrate. This coating was specially developed as a variant of CHO-SHIELD® with a lower VOC rating. CHO-SHIELD® 579 dries to the touch in less than 1 hour at room temperature and attains full chemical resistance after 1 week at room temperature. However, the best electrical properties are achieved by curing at elevated temperatures. Information provided by Chomerics
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Physical Properties	Original Value	Comments

Specific Gravity	1.80 g/cc

Electrical Properties	Original Value	Comments
Volume Resistivity	0.060 ohm-cm @Temperature 24.0 °C, Time 3600 sec	[ohm/sq], followed by 1 hour at 121°C

Processing Properties	Original Value	Comments
Cure Time	1.00 hour @Temperature 24.0 °C	and 1 hour at 65.5°C, followed by 1 hour at 121°C
	1.00 hour @Temperature 24.0 °C	and 1 hour at 121°C
	1.00 hour @Temperature 24.0 °C	and 6 hours at 65.5°C
	1.00 hour @Temperature 24.0 °C	followed by 4 hours at 79.4°C
Pot Life	480 min
Shelf Life	9.00 Month

Descriptive Properties
Suggested Spraying Viscosity #2 Zahn Cup	18 - 24 sec
Theoretical Yield	7200 in²/lb

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PCHOME235 / 130945

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