Parker Chomerics CHO-FORM® 5515 Robotically Dispensed Gasketing

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Parker Chomerics CHO-FORM® 5515 Robotically Dispensed Gasketing
Categories:	Polymer; Thermoset; Silicone
Material Notes:	Description: CHO-FORM® 5515 One-component, thermal cure silicone system, with Ni/Graphite filler. Minimum cure temperature is 100°C (212°F). A low-cost solution for EMI shielding, it is specially formulated to reduce galvanic activity between the housing and EMI gasket, and for use on outdoor applications requiring long-term corrosion resistance. Information provided by Chomerics
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Physical Properties	Original Value	Comments

Specific Gravity	1.80 g/cc	ASTM D792

Mechanical Properties	Original Value	Comments
Hardness, Shore A	50 - 75	ASTM D2240
Tensile Strength	>= 450 psi	ASTM D412
Elongation at Break	>= 100 %	ASTM D412
Compression Set	<= 25 % @Temperature 85.0 °C, Time 79200 sec	ASTM D395 Method B

Electrical Properties	Original Value	Comments
Volume Resistivity	<= 0.20 ohm-cm	Initial; MIL-G-83528 Para. 4.6.11
	<= 0.30 ohm-cm	Aged; MIL-G-83528 Para. 4.6.15
Shielding Effectiveness	75 - 85 dB	modified specimen 0.85 mm x 1.0 mm bead with plastic bolts; MIL-G-83528 Para. 4.6.12

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	100 °C

Processing Properties	Original Value	Comments
Cure Time	0.500 hour @Temperature 140 °C

Descriptive Properties
Adhesion	>8 N/cm²	WI 038
Cure System	Heat
Filler	Ni/Graphite
Mix Ratio	1-part

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PCHOME212 / 130922

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