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Chemically Resistant adhesives

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Lord Adhesives Thermoset/CoolTherm™ EP 340/67 Epoxy System Epoxy Resin System
Categories: Polymer; Thermoset; Epoxy; Epoxy Adhesive

Material Notes: LORD CoolTherm™ EP-340/67 epoxy system is a two-component system designed to provide maximum thermal conductivity and outstanding mechanical properties. CoolTherm EP-340/67 system offers a very low coefficient of thermal expansion and is appropriate for applications where the expansion and contraction of an epoxy encapsulation system must be maintained. Handling and cured properties of the two-component epoxy system are dependent on the hardener used with CoolTherm EP-340 epoxy resin.

Features: requires an elevated temperature cure to obtain a rigid bond. provides good resistance for cured system that experiences continuous operating temperature up to 155°C. light color prevents staining of work environment.

All information provided by Lord.

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
Specific Gravity 0.920 g/ccHardener 67
 2.40 g/ccEP-340 Epoxy Resin
Water Absorption 0.17 %
@Temperature 24.0 °C
ASTM D 570
 0.080 %
@Temperature 24.0 °C,
Time 90000 sec
Viscosity 30 cP
@Temperature 25.0 °C
Hardener 67
 7000 cP
@Temperature 25.0 °C
Mixed
 300000 cP
@Temperature 25.0 °C
EP-340 Epoxy Resin
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 95
@Temperature 25.0 °C
cured
Tensile Strength 7300 psi
@Temperature 25.0 °C
cured
Elongation at Break 2.7 %cured
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 5.00e+16 ohm-cm
@Temperature 25.0 °C
cured
Dielectric Constant 4.4
@Frequency 1e+6 Hz,
Temperature 25.0 °C
cured
Dielectric Strength 410 V/milcured
Dissipation Factor 0.031
@Frequency 1e+6 Hz,
Temperature 25.0 °C
cured
 
Thermal PropertiesOriginal ValueComments
CTE, linear 28.0 µm/m-°Ccured
Thermal Conductivity 1.50 W/m-Kcured
Maximum Service Temperature, Air 155 °C
 
Processing PropertiesOriginal ValueComments
Cure Time 2.00 hour
@Temperature 100 °C
mixed, optional post cure- 2 hrs at 150C
Working Life 60.0 - 120 min
@Temperature 25.0 °C
Mixed
Shelf Life 18.0 Month
@Temperature 25.0 °C
Hardener 67
 
Descriptive Properties
AppearanceBlack LiquidEP-340 Epoxy Resin
 Clear LiquidHardener 67
Mix Ratio100 to 15.5Resin to hardener, by volume
 100 to 6Resin to hardener, by weight

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PLORD9248 / 232604

Chemically Resistant adhesives

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