Chase Electronic Coatings HumiSeal® 1C48 UV Curable Silicone Conformal Coating

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Chase Electronic Coatings HumiSeal® 1C48 UV Curable Silicone Conformal Coating
Categories:	Polymer; Thermoset; Silicone
Material Notes:	HumiSeal® 1C48 is a fast moisture cure, low viscosity VOC-free silicone conformal coating which provides excellent moisture and environmental protection for printed circuit assemblies. HumiSeal® 1C48 is solvent free and can be cured at room temperature in just a few minutes. HumiSeal® 1C48 is RoHS Directive 2011/65/EU compliant. Information provided by Chase Electronic Coatings.
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Physical Properties	Metric	English	Comments

Solids Content	>= 100 %	>= 100 %	By weight; Fed-Std-141, Meth. 4044
Volatile Organic Compounds (VOC) Content	0.00 g/l	0.00 g/l
Viscosity	220 - 320 cP	220 - 320 cP	Fed-Std-141, Meth. 4287
Thickness	50.0 - 200 microns	1.97 - 7.87 mil	Recommended coating

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	25	25	ASTM D2240-95

Electrical Properties	Metric	English	Comments
Volume Resistivity	3.44e+14 ohm-cm	3.44e+14 ohm-cm	ASTM D257
Surface Resistance	3.00e+14 ohm	3.00e+14 ohm	ASTM D257
Insulation Resistance	4.52e+11 ohm	4.52e+11 ohm	Moisture; (IPC-CC-830
	5.00e+13 ohm	5.00e+13 ohm	MIL-I-46058C
Dielectric Strength	18.5 kV/mm	470 kV/in	ASTM D149

Processing Properties	Metric	English	Comments
Cure Time	1440 min @Temperature 23.0 °C	24.0 hour @Temperature 73.4 °F	> 40% R.H.
	10100 min @Temperature 23.0 °C	168 hour @Temperature 73.4 °F	Optimum cure
Tack-Free Time	1.50 min @Thickness 0.100 mm, Temperature 60.0 °C	0.0250 hour @Thickness 0.00394 in, Temperature 140 °F	For handling. 50% RH; Fed-Std-141, Meth. 4061
	4.02 min @Thickness 0.200 mm, Temperature 60.0 °C	0.0670 hour @Thickness 0.00787 in, Temperature 140 °F	For handling. 50% RH; Fed-Std-141, Meth. 4061
	4.98 min @Thickness 0.100 mm, Temperature 21.0 °C	0.0830 hour @Thickness 0.00394 in, Temperature 69.8 °F	For handling. 50% RH; Fed-Std-141, Meth. 4061
	7.80 min @Thickness 0.200 mm, Temperature 21.0 °C	0.130 hour @Thickness 0.00787 in, Temperature 69.8 °F	For handling. 50% RH; Fed-Std-141, Meth. 4061
Shelf Life	12.0 Month @Temperature 23.0 °C	12.0 Month @Temperature 73.4 °F	DOM

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PCHAS923 / 239784

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