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Parker Chomerics CHO-SHIELD® 576 Platable Silver Epoxy Coating

Category Polymer , Adhesive , Thermoset , Epoxy
Manufacturer Parker Chomerics
Trade Name CHO-SHIELD®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Parker Chomerics CHO-SHIELD® 576 Platable Silver Epoxy Coating.pdf
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Material Notes:
Description: CHO-SHIELD® 576 coating is a two component, silver filled, highly conductive epoxy paint designed to provide EMI shielding when applied to a dielectric plastic substrate. This coating was specifically developed as a variant of CHO-SHIELD® 596. CHO-SHIELD® 576 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.Performance: CHO-SHIELD® 576 is first sprayed onto plastic substrate, and further plating operations may follow. The full stack up of plating and coating will meet strict adhesion requirements, equivalent to ASTM D3359 with a rating of 5A after exposure to 95% RH at 65°C for 24 hours and thermal cycling from one hour at -57°C to one hour at 95°C for a total of four cycles.Information provided by Chomerics
Physical Properties Metric English Comments
Specific Gravity 1.80 g/cc
1.80 g/cc
Mechanical Properties Metric English Comments
Hardness, Shore D 40 - 60
40 - 60
ASTM D676
Electrical Properties Metric English Comments
Volume Resistivity 0.060 ohm-cm

@Temperature 24.0 °C,
Time 3600 sec
0.060 ohm-cm

@Temperature 75.2 °F,
Time 1.00 hour
[ohm/sq], followed by 1 hour at 121°C
Processing Properties Metric English Comments
Cure Time 60.0 min

@Temperature 23.8 °C
1.00 hour

@Temperature 74.8 °F
and 1 hour at 121°C
60.0 min

@Temperature 23.8 °C
1.00 hour

@Temperature 74.8 °F
and 6 hours at 65.5°C
120 min

@Temperature 24.0 °C
2.00 hour

@Temperature 75.2 °F
and 45 minutes at 65.5°C, followed by 45 minutes at 98.8° C (recommended)
10100 min

@Temperature 23.8 °C
168 hour

@Temperature 74.8 °F
Pot Life 480 min
480 min
Shelf Life 9.00 Month
9.00 Month
Descriptive Properties Value Comments
Suggested Spraying Viscosity #2 Zahn Cup 15 sec
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