Henkel Loctite® Stycast® ES 0520 Two-Component Filled Epoxy

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Henkel Loctite® Stycast® ES 0520 Two-Component Filled Epoxy
Categories:	Polymer; Thermoset; Epoxy; Epoxy Encapsulant, Unreinforced
Material Notes:	Loctite Stycast ES 0520 provides the following product characteristics: Cure: Heat cure Application: Potting and Encapsulating Typical Applications: Ignition Coil Potting Loctite Stycast ES 0520 is a two-component, filled epoxy system formulated for general potting and encapsulating applications. This material is especially well suited for impregnation of components containing tightly wound coils. Information provided by Henkel.
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Physical Properties	Original Value	Comments

Specific Gravity	1.74 g/cc	Part B
	1.77 g/cc	Part A
Density	1.77 g/cc	Cured
Filler Content	60.5 %	Part A
	60.5 %	Part B
Brookfield Viscosity	29100 cP	Part B; RVF, Spindle 5, speed 4 rpm
	57600 cP	Mixed; RVF, Spindle 5, speed 4 rpm
	162000 cP	RVF, Spindle 7, speed 10 rpm
Linear Mold Shrinkage	0.0097 cm/cm

Mechanical Properties	Original Value	Comments
Hardness, Shore D	95
Tensile Strength	52.0 MPa
Elongation at Break	2.0 %
Tensile Modulus	2945 MPa

Electrical Properties	Original Value	Comments
Volume Resistivity	5.57e+13 ohm-cm @Temperature 125 °C
	2.70e+16 ohm-cm @Temperature 25.0 °C
Dielectric Constant	3.75 @Frequency 10000 Hz, Temperature 23.0 °C
	3.78 @Frequency 1000 Hz, Temperature 23.0 °C
	4.41 @Frequency 10000 Hz, Temperature 125 °C
	4.76 @Frequency 1000 Hz, Temperature 125 °C
Dielectric Strength	1010 V/mil @Thickness 20.0 mm
Dissipation Factor	0.0034 @Frequency 10000 Hz, Temperature 23.0 °C
	0.0056 @Frequency 1000 Hz, Temperature 23.0 °C
	0.0493 @Frequency 10000 Hz, Temperature 125 °C
	0.0538 @Frequency 1000 Hz, Temperature 125 °C

Thermal Properties	Original Value	Comments
CTE, linear	49.0 µm/m-°C @Temperature 40.0 - 60.0 °C	Below Tg
	180 µm/m-°C @Temperature 110 - 130 °C	Above Tg
Glass Transition Temp, Tg	88.0 °C	TMA

Processing Properties	Original Value	Comments
Cure Time	2.00 hour @Temperature 125 °C	Alternate Cure Schedule, Plus 3 hours @ 150°C
	3.00 hour @Temperature 93.0 °C	Cure Schedule, Plus 2 hours @ 150°C
Pot Life	>= 8.00 min @Temperature 25.0 °C	Pot life; 200-gram mass
Gel Time	50.0 min @Temperature 100 °C
Shelf Life	12.0 Month	Part A, From date of manufacture
	12.0 Month	Part B, From date of manufacture

Descriptive Properties
Appearance	Black	Mixed
	Black	Part B
	Gray	Part A
Mix Ratio, by Volume	1 : 1	Part A : Part B
Mix Ratio, by Weight	100 : 100	Part A : Part B

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PHENK7949 / 255434

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