CoolTherm™ EP-2000 Thermally Conductive Epoxy Encapsulant
LORD CoolTherm™ EP-2000 encapsulant is a two-component, low viscosity epoxy system designed for encapsulation of motor stators, transformer coils, and other devices with small-diameter, tightly-packed windings. CoolTherm EP-2000 encapsulant provides high-temperature stability combined with excellent electrical insulation.
Shelf life of each component is six months from date of manufacture when stored at 25°C in original, unopened container. CoolTherm EP-2000 resin must be periodically rotated within its container to maintain maximum shelf life. Settling will occur if not mixed.
Features and Benefits
Excellent Heat Dissipation – provides lower motor end winding temperatures during high-power operation.
Low Viscosity – provides fine-particle filler and low viscosity; self-levels to fill voids in motor stators/rotors, transformer coils and other electrical devices.
Durable– cured material resists cracking during multiple thermal cycles from sub-zero temperatures to 200°C.
Uncured Typical Properties*
|Mixed Appearance||Gray Liquid|
Mixed Viscosity, cps @ 60°C
Shear rate 10/s
|Mixed Specific Gravity, @ 25°C||2.72|
|Gel Time, min @ 110°C||64|
|Working Life, hr @ 60°C||>3|
Cured Typical Properties*
|Volume Resistivity, ohm-cm @ 25°C||1 x 1014|
|Thermal Conductivity, W/mK||1.9|
|Coefficient of Linear Thermal Expansion, ppm/°C||14.9|
|Glass Transition Temperature (Tg), °C||204|
|Hardness, Shore D||85|
|Young's Modulus, GPa||17.5|
|Dielectric Strength, V/mil||470|
* Data is typical and not to be used for specification purposes.
Cure schedule of 2 hours each at 120°C, 150°C, 180°C and 210°C.