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Chemically Resistant adhesives

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Epoxy Technology EPO-TEK® 930-4 Thermally Conductive Epoxy
Categories: Polymer; Thermoset; Epoxy; Epoxy, Thermally Conductive

Material Notes: Product Description: EPO-TEK® 930-4 is a two component, thermally conductive epoxy, formulated with a very fine boron-nitride filler particle. Also available in a single component frozen syringe.

Advantages & Application Notes:

  • Recommended for applications where heat dissipation and insulating properties are essential; attaching heat sinks on PCB; heat-sinking in hybrids such as DIP or TO-cans; kovar, aluminum or ceramic packaging.
  • Semiconductor applications: die-attach inside plastic IC packages using JEDEC format; die bonding power devices; thermally conductive underfill and glob top for flip-chip assembled die.
  • Adhesion to ferrous and non-ferrous metals, ceramic, glass, semiconductor materials and most plastics is excellent.
  • Designed for many production methods such as screen printing techniques, automated dispensing, pin transfer or manual applications by hand or spatula.
  • Ease of use: long pot-life with low temperature cure of 80°C possible.
  • Color change characteristic that indicates the epoxy has reached optimum cure - it goes from an off-white color to an amber color - depending on cure cycle and epoxy thickness.

Information Provided by Epoxy Technology

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.02 g/ccPart B
 1.31 g/ccPart A
Particle Size <= 20 µm
Viscosity 12000 - 17000 cP
@Temperature 23.0 °C
20 rpm
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 85
Tensile Modulus 608000 psiStorage
Shear Strength >= 1927 psiLap
 >= 5100 psiDie
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 2.00e+13 ohm-cm
Dielectric Constant 3.73
@Frequency 1000 Hz
Dissipation Factor 0.0040
@Frequency 1000 Hz
 
Thermal PropertiesOriginal ValueComments
CTE, linear 27.0 µm/m-°CBelow Tg
 136 µm/m-°CAbove Tg
Thermal Conductivity 1.67 W/m-K
Maximum Service Temperature, Air 200 °CContinuous
 325 °CIntermittent
Minimum Service Temperature, Air -55.0 °CContinuous
 -55.0 °CIntermittent
Glass Transition Temp, Tg >= 90.0 °CDynamic Cure 20—200°C /ISO 25 Min; Ramp -10—200°C @ 20°C/Min
Decomposition Temperature 425 °CDegradation Temperature
 
Processing PropertiesOriginal ValueComments
Cure Time 6.00 hour
@Temperature 80.0 °C
Minimum Bond Line
 10.0 min
@Temperature 150 °C
Minimum Bond Line
Pot Life 144 minFrozen Syringe
 1440 min
Shelf Life 6.00 Month
@Temperature -40.0 °C
Frozen Syringe
 12.0 Month
@Temperature 23.0 °C
 
Descriptive Properties
ColorAmberPart B
 IvoryPart A
ConsistencySmooth paste
Mix Ratio by Weight100:3.3
Number of ComponentsTwo
Thixotropic Index2.4
Weight Loss0.1%200°C
 0.33%250°C
 0.73%300°C

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PPOXYT059 / 141098

Chemically Resistant adhesives

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