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Metal adhesives

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Master Bond EP17HTDA-2 One component die attach epoxy system
Categories: Polymer; Thermoset; Epoxy

Material Notes: Key Features:
  • Not premixed and frozen
  • Paste consistency
  • Thermally conductive, electrically insulating
  • High compressive strength
Product Description: Master Bond EP17HTDA-2 is a one component, heat cured epoxy system for bonding, sealing, and die attach applications. It does not require any mixing and the curing temperature is 300-350°F. It is not premixed and frozen and has an unlimited working life at room temperature. It will cure in either 4-5 hours at 300°F or 3-4 hours at 350°F. To optimize properties, use one of the above cure schedules plus an additional 2-3 hours at 400°F. Its viscosity and flow allow it be an effective adhesive for die attach applications. EP17HTDA-2 bonds well to a wide variety of substrates such as metal, ceramics, plastics and composites. It has an impressive array of physical strength properties, particularly tensile modulus, compressive strength and glass transition temperature. The system is thermally conductive and electrically insulative. It is highly chemically resistant to water, acids, bases, solvents, fuels, and oils. It has superb electrical insulation along with good thermal conductivity. The service temperature range is from -80°F to +600°F. The standard color is off white. EP17HTDA-2 is recommended for specialty type applications where a high Tg is a critical factor in die attach applications.

Product Advantages:

  • Single component system
  • Thermally conductive, electrically insulative
  • Can withstand temperatures used in electronic packaging such as wire bonding
  • Dispenses well for die attach applications
  • Passes NASA low outgassing specifications

Information provided by Master Bond.

Vendors: Master Bond is a leading manufacturer of adhesives, sealants, coatings and potting compounds. Master Bond’s vast product line consists of over 3,000 epoxy, polyurethane, silicone, cyanoacrylate and latex adhesives that vary in viscosity, cure speed, strength, chemical resistance, electrical properties, etc. Our custom adhesives offer design flexibility and provide excellent bonding performance. Visit www.masterbond.com.

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.78 g/cc
Solids Content 100 %
Viscosity >= 1.00e+6 cPpaste
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 90 - 95
Tensile Strength 4500 - 5500 psi
Tensile Modulus >= 1.10e+6 psi
Compressive Strength 28000 - 30000 psi
Adhesive Bond Strength 1600 - 1800 psiTensile lap shear, Al to Al
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+15 ohm-cm
Dielectric Constant 4.4
@Frequency 60 Hz
 
Thermal PropertiesOriginal ValueComments
CTE, linear 20.0 - 25.0 µm/m-°C
Thermal Conductivity 9.00 - 10.0 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 600 °F
Minimum Service Temperature, Air -80.0 °F
Glass Transition Temp, Tg 185 - 190 °C
 
Processing PropertiesOriginal ValueComments
Cure Time 3.00 - 4.00 hour
@Temperature 177 °C
Option 2 (plus 2-3 hours at 400°F)
 4.00 - 5.00 hour
@Temperature 149 °C
Option 1 (plus 2-3 hours at 400°F)
 
Descriptive Properties
Die shear strength20-23 kg-f2 x 2 mm

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PMASTM5909 / 306798

Metal adhesives

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