CoolTherm® EP-3500/EP-2000 epoxy system is a two-component system designed for encapsulation of motor stators, transformer coils, and devices requiring a rigid, high thermal conductivity material with a low coefficient of thermal expansion. The epoxy system provides high-temperature stability combined with excellent electrical insulation.

Features and Benefits:
• Superior Heat Dissipation – typically provides 30-50°C lower motor end winding temperatures during high-power operation.
• Low Viscosity – provides low viscosity for a highly-filled material; 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.
• UL Rated - when mixed with CoolTherm EP-2000 hardener, epoxy system is approved for use in PDG-H2, Table V insulation constructions (Class H – 180°C).

Shelf Life/Storage:
Shelf life of each component is nine months when stored at 25°C in original, unopened container. CoolTherm EP-3500 resin must be periodically rotated within its container to maintain maximum shelf life. Settling will occur. Product must be mixed as directed before use. To achieve properties and minimize hard-packed settling of fillers during storage, follow the general considerations and storage tips recommended in the Technical Tip – “Mixing of CoolTherm EP-3500 and EP-2000 Potting Materials”.