Chase Electronic Coatings HumiSeal® 2C51 Silicone Conformal Coating

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Chase Electronic Coatings HumiSeal® 2C51 Silicone Conformal Coating
Categories:	Polymer; Thermoset; Silicone
Material Notes:	HumiSeal® 2C51 is a two component high strength, fast curing silicone encapsulating gel supplied as Parts A and B, suitable for general printed circuit board applications. HumiSeal® 2C51 is characterized by room temperature cure and low viscosity for ease of application and contains UV tracer for ease of inspection. The two components of HumiSeal 2C51 are blue and yellow and turn green when mixed. HumiSeal® 2C51 is RoHS Directive 2011/65/EC compliant. Information provided by Chase Electronic Coatings.
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Physical Properties	Metric	English	Comments

Density	0.970 g/cc	0.0350 lb/in³	ASTM D1475
Solids Content	99 %	99 %	By weight; Fed-Std-141, Meth. 4044
Volatile Organic Compounds (VOC) Content	0.00 g/l	0.00 g/l
Viscosity	200 - 350 cP	200 - 350 cP	Fed-Std-141, Meth. 4287. Part A
	400 - 700 cP	400 - 700 cP	Fed-Std-141, Meth. 4287. Part B

Mechanical Properties	Metric	English	Comments
Hardness, Shore OO	45 - 55	45 - 55

Electrical Properties	Metric	English	Comments
Volume Resistivity	5.20e+13 ohm-cm	5.20e+13 ohm-cm	ASTM D257

Processing Properties	Metric	English	Comments
Cure Time	30.0 min @Temperature 70.0 °C	0.500 hour @Temperature 158 °F	Optimum Properties
Tack-Free Time	10.2 min	0.170 hour	Fed-Std-141, Meth. 4061
Gel Time	8.00 - 10.0 min @Temperature 23.0 °C	8.00 - 10.0 min @Temperature 73.4 °F
Shelf Life	12.0 Month @Temperature 23.0 °C	12.0 Month @Temperature 73.4 °F	DOM

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PCHAS927 / 239788

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