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Ensinger PEI

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Henkel Loctite® Stycast® ES 4512 Two-Component Epoxy Casting System
Categories: Polymer; Thermoset; Epoxy; Epoxy Encapsulant, Unreinforced
Material Notes: Loctite Stycast ES 4512 provides the following product characteristics: Room temperature cure

Application: Potting and Encapsulating

Loctite Stycast ES 4512 is a two-component casting system with excellent handling properties. This low cost, flexible system is filled with a non-abrasive filler for machine metering/dispensing or regular hand mixer applications.

Information provided by Henkel.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Density 1.48 g/ccPart B
 1.55 g/ccMixed
 1.57 g/ccPart A
Solids Content 100 %Part A
 100 %Part B
Filler Content 50 %Part A
 60 %Part B
Water Absorption 0.32 %
@Time 86400 sec		ISO 62
Viscosity 19000 cPMixed
Brookfield Viscosity 6300 cPPart B; RVF, Spindle 5, speed 20 rpm
 28000 cPPart A; Spindle 6, speed 20 rpm
 55000 cPPart A; RVF, Spindle 6, speed 2 rpm
Linear Mold Shrinkage 0.0010 cm/cmASTM D792
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 88ISO 868
Tensile Strength 18.4 MPaHysol; ISO 527-2
Elongation at Break 6.3 %ISO 527-2
Flexural Strength 34.3 MPaISO 178
Compressive Strength 80.7 MPaHysol; ISO 604
Tear Strength 42.0 kN/mDie D, Hysol; ISO 34-2
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 2.80e+10 ohm-cm
@Temperature 105 °C		IEC 60093
 5.90e+14 ohm-cm
@Temperature 25.0 °C		IEC 60093
Surface Resistance 1.80e+15 ohm
@Temperature 105 °C		IEC 60093
 3.00e+15 ohm
@Temperature 25.0 °C		IEC 60093
Dielectric Constant 4.1
@Frequency 100000 Hz,
Temperature 25.0 °C		IEC 60250
 4.3
@Frequency 10000 Hz,
Temperature 25.0 °C		IEC 60250
 4.4
@Frequency 1000 Hz,
Temperature 25.0 °C		IEC 60250
 4.6
@Frequency 100 Hz,
Temperature 25.0 °C		IEC 60250
 7.2
@Frequency 100000 Hz,
Temperature 105 °C		IEC 60250
 7.8
@Frequency 10000 Hz,
Temperature 105 °C		IEC 60250
 9.2
@Frequency 1000 Hz,
Temperature 105 °C		IEC 60250
 35.7
@Frequency 100 Hz,
Temperature 105 °C		IEC 60250
Dielectric Strength 44.7 kV/mmIEC 60243-1
Dissipation Factor 0.023
@Frequency 100000 Hz,
Temperature 25.0 °C		IEC 60250
 0.026
@Frequency 10000 Hz,
Temperature 25.0 °C		IEC 60250
 0.030
@Frequency 1000 Hz,
Temperature 25.0 °C		IEC 60250
 0.038
@Frequency 100 Hz,
Temperature 25.0 °C		IEC 60250
 0.080
@Frequency 100000 Hz,
Temperature 105 °C		IEC 60250
 0.10
@Frequency 10000 Hz,
Temperature 105 °C		IEC 60250
 0.50
@Frequency 1000 Hz,
Temperature 105 °C		IEC 60250
 
Thermal PropertiesOriginal ValueComments
CTE, linear 66.0 µm/m-°C
@Temperature <=50.0 °C		Pre Tg (Alpha 1); ASTM D7012
 150 µm/m-°C
@Temperature >=50.0 °C		Post Tg (Alpha 2); ASTM D7012
Thermal Conductivity 0.644 W/m-KISO 8302
Glass Transition Temp, Tg 50.0 °CISO 11357-2
Flammability, UL94 V-0
@Thickness 1.80 mm
 
Processing PropertiesOriginal ValueComments
Cure Time 3.00 hour
@Temperature 60.0 °C		Alternate
 36.0 - 48.0 hour
@Temperature 25.0 °C		Recommended
Pot Life 60.0 min200 g mass
Gel Time 300 min
 
Descriptive Properties
AppearanceBlackComponent A, Resin
 BlackCured
 TanComponent B, Hardener
Mix Ratio, by Volume100 : 106Part A : Part B
Mix Ratio, by Weight100 : 100Component A : Component B
Peak Exotherm Temperature (°C)90200 g mass

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