Chase Electronic Coatings HumiSeal® 1A34 Urethane Conformal Coating

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Chase Electronic Coatings HumiSeal® 1A34 Urethane Conformal Coating
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	HumiSeal® 1A34 is a single component, fast curing polyurethane conformal coating. HumiSeal® 1A34 offers easy application and handling and fluoresces under UV light for ease of inspection. HumiSeal® 1A34 coating is MIL-I-46058C qualified, IPC-CC-830 and RoHS Directive 2002/95/EC compliant. Information provided by Chase Electronic Coatings.
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Physical Properties	Metric	English	Comments

Density	0.950 g/cc	0.0343 lb/in³	ASTM D1475
Solids Content	39 %	39 %	± 2. By weight; Fed-Std-141, Meth. 4044
Volatile Organic Compounds (VOC) Content	576 g/l	576 g/l
Viscosity	50 - 200 cP	50 - 200 cP	Fed-Std-141, Meth. 4287
Thickness	25.0 - 75.0 microns	0.984 - 2.95 mil	Recommended coating

Mechanical Properties	Metric	English	Comments
Modulus of Elasticity	0.0513 GPa	7.44 ksi	DMA

Electrical Properties	Metric	English	Comments
Insulation Resistance	6.30e+10 ohm	6.30e+10 ohm	Moisture; MIL-I-46058C
	1.70e+14 ohm	1.70e+14 ohm	MIL-I-46058C
Dielectric Constant	3.5 @Frequency 1e+6 Hz, Temperature 25.0 °C	3.5 @Frequency 1e+6 Hz, Temperature 77.0 °F	ASTM D150-65T
Dissipation Factor	0.028 @Frequency 1e+6 Hz, Temperature 25.0 °C	0.028 @Frequency 1e+6 Hz, Temperature 77.0 °F	ASTM D150-65T

Thermal Properties	Metric	English	Comments
CTE, linear	260 µm/m-°C	144 µin/in-°F	TMA
Glass Transition Temp, Tg	18.0 °C	64.4 °F	DSC

Processing Properties	Metric	English	Comments
Cure Time	240 min @Temperature 76.0 °C	4.00 hour @Temperature 169 °F	Option
	1440 min @Temperature 23.0 °C	24.0 hour @Temperature 73.4 °F	Option
	10100 min @Temperature 23.0 °C	168 hour @Temperature 73.4 °F	Optimum Properties
Tack-Free Time	7200 min	120 hour	To handle, ± 30; Fed-Std-141, Meth. 4061
Shelf Life	6.00 Month @Temperature 23.0 °C	6.00 Month @Temperature 73.4 °F	DOM

Descriptive Properties
Dielectric Withstand	>1500 V		per MIL_I_46058C
Flammability	Self Extinguishing		MIL_I_46058C
Fungus Resistance	Passes		ASTM G21
Thermal Shock	-65 to 125°C		per MIL_I_46058C

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PCHAS915 / 239776

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