Chase Electronic Coatings HumiSeal® UV50LV UV Curable Urethane Conformal Coating

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Chase Electronic Coatings HumiSeal® UV50LV UV Curable Urethane Conformal Coating
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	HumiSeal® UV50LV is a one-part, low viscosity, high solids dual cure acrylated polyurethane conformal coating possessing excellent chemical resistance, flexibility and moisture resistance. HumiSeal® UV50LV has been developed at a low viscosity to allow use with film coater type selective coating equipment. HumiSeal® UV50LV is tack free after exposure to UV light and the secondary moisture cure mechanism will fully cure any unexposed areas of the coating within 7 days at ambient conditions. Cured HumiSeal® UV50LV has a higher flexibility compared to other UV curable conformal coatings, giving improved performance in thermal cycling tests. HumiSeal® UV50LV fluoresces under UV light to allow coating inspection and can be applied by all selective coating equipment. HumiSeal® UV50LV contains no VOCs or solvent. HumiSeal® UV50LV is recognized under UL File Number E105698. Information provided by Chase Electronic Coatings.
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Physical Properties	Metric	English	Comments

Density	1.00 - 1.10 g/cc	0.0361 - 0.0397 lb/in³
Solids Content	>= 95 %	>= 95 %
Viscosity	80 - 120 cP	80 - 120 cP	Fed-Std-141, Meth. 4287
Thickness	25.0 - 125 microns	0.984 - 4.92 mil	Recommended coating

Mechanical Properties	Metric	English	Comments
Modulus of Elasticity	0.006394 GPa @Temperature 25.0 °C	0.9274 ksi @Temperature 77.0 °F	DMA

Electrical Properties	Metric	English	Comments
Volume Resistivity	3.90e+13 ohm-cm	3.90e+13 ohm-cm	ASTM D257
Surface Resistance	7.40e+14 ohm	7.40e+14 ohm	ASTM D257
Insulation Resistance	3.00e+9 ohm	3.00e+9 ohm	Moisture; (IPC-CC-830
	8.61e+10 ohm	8.61e+10 ohm	IPC-J-STD-004 (mod.)
Comparative Tracking Index	>= 600 V	>= 600 V	ASTM D3638

Thermal Properties	Metric	English	Comments
CTE, linear	122 µm/m-°C @Temperature <=-1.00 °C	67.8 µin/in-°F @Temperature <=30.2 °F	Below Tg; TMA
	264 µm/m-°C @Temperature >=-1.00 °C	147 µin/in-°F @Temperature >=30.2 °F	Above Tg; TMA
Thermal Conductivity	0.152 W/m-K	1.05 BTU-in/hr-ft²-°F
Glass Transition Temp, Tg	-1.00 °C	30.2 °F	DSC
Flammability, UL94	V-0	V-0

Processing Properties	Metric	English	Comments
Shelf Life	12.0 Month @Temperature 23.0 °C	12.0 Month @Temperature 73.4 °F	DOM

Descriptive Properties
Dielectric Withstand	>1500 V		per MIL_I_46058C
Surface Insulation Resistance	Pass		> 500MO, 7 days, IPC B24, 85C/85RH

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PCHAS922 / 239783

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