Henkel Loctite® Stycast® US 0152 Two-Component Urethane Unfilled Encapsulation Compound

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Henkel Loctite® Stycast® US 0152 Two-Component Urethane Unfilled Encapsulation Compound
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	Room temperature cure Application: Potting and Encapsulating Typical Assembly Applications: Transformers, PCB's and other insulating applications Loctite Stycast US 0152 is an unfilled, low viscosity, reenterable potting and encapsulation compound. It has excellent low temperature properties and surface finish. This material can be used to encapsulate electronics for various applications including under-the-hood automotive and marine. The low glass transition temperature prevents damage to sensitive components during low temperature excursions. Information provided by Henkel.
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Physical Properties	Metric	English	Comments

Density	1.00 g/cc	0.0361 lb/in³	Uncured Liquid
Water Absorption	0.78 % @Time 86400 sec	0.78 % @Time 24.0 hour	Immersion
Viscosity	450 cP	450 cP	Uncured Liquid
Linear Mold Shrinkage	<= 0.010 cm/cm	<= 0.010 in/in

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	35	35
Tensile Strength	0.689 MPa	100 psi
Elongation at Break	180 %	180 %

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.90e+11 ohm-cm	1.90e+11 ohm-cm
Surface Resistance	1.40e+13 ohm	1.40e+13 ohm
Dielectric Constant	5.31 @Frequency 100000 Hz	5.31 @Frequency 100000 Hz
	6.52 @Frequency 1000 Hz	6.52 @Frequency 1000 Hz
Dielectric Strength	46.1 kV/mm @Thickness 20.0 mm	1170 kV/in @Thickness 0.787 in
Dissipation Factor	0.050 @Frequency 1000 Hz	0.050 @Frequency 1000 Hz
	0.090 @Frequency 100000 Hz	0.090 @Frequency 100000 Hz

Thermal Properties	Metric	English	Comments
CTE, linear	272 µm/m-°C	151 µin/in-°F
Thermal Conductivity	0.172 W/m-K	1.19 BTU-in/hr-ft²-°F
Glass Transition Temp, Tg	-38.0 °C	-36.4 °F

Processing Properties	Metric	English	Comments
Cure Time	120 - 240 min @Temperature 60.0 - 85.0 °C	2.00 - 4.00 hour @Temperature 140 - 185 °F	Alternate
	1440 min @Temperature 23.0 °C	24.0 hour @Temperature 73.4 °F	Recommended
Pot Life	<= 60.0 min	<= 60.0 min	100 gram mass
Gel Time	90.0 min	90.0 min	100 gram mass

Descriptive Properties
Appearance	Amber		Component A, Resin
	Black		Component B, Hardener
	Opaque Black		Cured
Mix Ratio, by Volume	52 : 100		Part A : Part B
Mix Ratio, by Weight	1 : 2		Part A : Part B
Weight Loss (%)	0.14		Weight Loss after 168 hrs @ 125ºC

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PHENK7965 / 255449

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