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Metal adhesives

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Tra-Con Tra-Bond 826H02 Thermally Conductive Electrically Insulating Compound
Categories: Polymer; Adhesive; Thermoset; Epoxy; Filled/Reinforced Thermoset

Material Notes: TRA-BOND 826H02 is a thermally conductive epoxy system that features a small particle size, spherical filler. This filler makes TRA-BOND 826H02 well suited to applications where extrusion through small-gauge needles is desired. TRA-BOND 826H02 is ideal for die and heat sink attach, staking transistors, diodes, resistors, integrated circuits and other heat-sensitive components to printed circuit boards. This two-part adhesive develops strong, durable, high-impact bonds at room temperature which improves heat transfer while maintaining electrical insulation. TRA-BOND 826H02 bonds readily to itself, and to metals, silica, steatite, alumina, sapphire and other ceramics, glass, plastics and many other materials, because its coefficient of thermal expansion provides a good match for those materials over a fairly wide temperature range. When fully cured, TRA-BOND 826H02 provides excellent resistance to salt solutions, mild acids and alkalis, and many other chemicals including petroleum solvents, lubricating oils and alcohol.

Information provided by Tra-Con Inc.

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Physical PropertiesOriginal ValueComments
Specific Gravity 2.07 g/ccCured
Viscosity 15300 cPMixed (cp #52, 10 rpm)
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 8524 hrs @ 25°C
Tensile Strength, Yield 5593 psi
Adhesive Bond Strength 2800 psiLap shear, alum to alum, 24 hrs @ 25°C
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 2.10e+15 ohm-cm
 3.20e+13 ohm-cm
@Temperature 75.0 °C
 
Thermal PropertiesOriginal ValueComments
CTE, linear 37.0 µm/m-°C
@Temperature 20.0 °C
Alpha 1
Thermal Conductivity 0.900 W/m-K
Maximum Service Temperature, Air 115 °C
Minimum Service Temperature, Air -70.0 °C
Glass Transition Temp, Tg 62.6 °CUltimate Tg; TMA
 
Processing PropertiesOriginal ValueComments
Cure Time 2.00 - 4.00 hour
@Temperature 65.0 °C
 24.0 hour
@Temperature 25.0 °C
Pot Life 35 min100 grams
 45 min25 grams
 
Descriptive Properties
Color BlueCured
Mix Ratio, parts by weight100/95Resin/Hardener
Thixotropic Index 1.75 rpm/50 rpm

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PTRAC169 / 71097

Metal adhesives

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