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CoolTherm® EP-340/18 Epoxy System Where to Buy

Product Information

LORD CoolTherm® EP-340/18 epoxy system is a two-component system designed to provide maximum thermal conductivity and outstanding mechanical properties. CoolTherm EP-340/18 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.

Shelf Life

Shelf life of CoolTherm EP-340 resin is six months from date of manufacture when stored at 25°C in original, unopened container. The material must be periodically rotated within its container to minimize settling.

Shelf life of Thermoset Hardener No. 18 is two years from date of manufacture when stored in a wellventilated area at 25°C in original, unopened container.

Features and Benefits

Heat Resistant – provides excellent heat resistance for a room temperature cured system.

Typical Properties*

Mixed Viscosity, cps @ 25°C 60,000
Working Life, min @ 25°C 40
Cure Time, hr @ 25°C 24

Cured Typical Properties*

Volume Resistivity, ohm-cm @ 25°C 2 x 1016
Thermal Conductivity, W/mK 1.5
Coefficient of Linear Thermal Expansion, ppm/°C 28
Hardness, Shore D 92
Tensile Strength, psi @ 25°C 6300
Elongation at Break, % 2.2
Moisture Absorption, %
24 hours @ 25°C
Dielectric Strength, V/mil 410
Dielectric Constant,
1 MHz @ 25°C
Dissipation Factor,
1 MHz @ 25°C

*Data is typical and not to be used for specification purposes.


Download Type Name
Download Technical Data Sheet CoolTherm EP-340 Epoxy Resin
Download Safety Data Sheet CoolTherm EP-340 Resin
Download Technical Data Sheet Thermoset Hardener No. 18
Download Product Catalog Potting & Encapsulation Materials

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