CoolTherm® EP-6028/6029 Epoxy Encapsulant Where to Buy
Product Information
LORD CoolTherm® EP-6028/6029 encapsulant is a two-component epoxy system used for potting high voltage transformers, specifically units designed for high temperature service. CoolTherm EP-6028/6029 encapsulant provides a rigid epoxy system for use in applications where thermal shock is expected.
Shelf Life
Shelf life of each component is one year from date of manufacture when stored at 25°C in original, unopened container.
Features and Benefits
Environmentally Resistant – provides excellent resistance to thermal shock, mechanical shock, and high humidity conditions.
Broad Temperature Range – can be used on parts and devices that experience operating temperatures from -55°C to +155°C.
Low Exotherm – exhibits minimal exotherm, allowing pour of very large castings with minimal stress on the unit.
A-A-59877 Compliant – exceeds requirements of Military Specification/Standard A-A-59877.
Uncured Typical Properties*
Mixed Appearance | Blue Liquid |
Mixed Viscosity, cps @ 25°C | 15,000 |
Mixed Specific Gravity, @ 25°C | 1.6 |
Gel Time, min @ 100°C | 45 - 60 |
Working Life, day @ 25°C | 2 - 3 |
Cure Time, hr @ 100°C | 3 - 4 |
Cured Typical Properties*
Volume Resistivity, ohm-cm @ 25°C | 1 x 1015 |
Thermal Conductivity, W/m·K | 0.45 |
Coefficient of Linear Thermal Expansion, ppm/°C | 32 |
Hardness, Shore D | 90 |
Tensile Strength, MPa (psi) | 49.6 (7200) |
Moisture Absorption, %, 24 hours @ 25°C | 0.15 |
Dielectric Strength, kV/mm (V/mil) | 17.7 (450) |
Dielectric Constant, @ 25°C | 4.5 |
Dissipation Factor, @ 25°C | 0.013 |
*Data is typical and not to be used for specification purposes.