Thermally Conductive Greases — Epo-Weld™

Alumina, aluminum, and copper-filled thermal interface greases engineered for heat-sink bonding, grounding connections, and component cooling in power electronics and LED assemblies. Stable and non-drying to 550°F.

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Product Range

Technical Specifications

Applications

Where Epo-Weld™ TCG Delivers

From power transistors to EV battery modules — wherever thermal
resistance at an interface limits component reliability or performance.

Power electronics PCB with transistors and heat sinks using Epo-Weld™ TCG thermal grease
Power Electronics
Bond IGBTs, MOSFETs, and power modules to heat sinks. TCG-10 provides electrical isolation while maximising thermal transfer to prevent junction temperature exceedance.
High-power LED fixture with thermal interface for Epo-Weld™ TCG LED assembly
LED Assemblies
Reduce thermal resistance between high-power LED packages, COB modules, and aluminium PCB cores or heat sinks, lowering junction temperatures and extending LED lifespan.
Electric vehicle battery module with thermal interface using Epo-Weld™ TCG grease
EV Battery Modules
Interface between battery cells and cooling plates in EV and energy storage systems. Stable non-drying formula maintains thermal contact through thousands of charge-discharge cycles.
RF and microwave power amplifier module with heat sink using Epo-Weld™ TCG thermal grease for RF component cooling
RF & Microwave Amplifiers
Manage thermal loads in GaN and GaAs power amplifier modules, transceivers, and radar systems operating under continuous high-power dissipation conditions.
Aerospace electronics assembly with thermal management using Epo-Weld™ TCG
Aerospace Electronics
Thermal interface for avionics, satellite power conditioning units, and airborne radar equipment where reliability across wide temperature ranges is mandatory.
Industrial motor drive assembly with thermal interface using Epo-Weld™ TCG
Industrial Motor Drives
Apply between power switching devices and heat sinks in variable frequency drives, servo amplifiers, and motor controllers to sustain rated output under continuous duty operation.
FAQ

Frequently Asked Questions

Common questions about Epo-Weld™ TCG thermally conductive greases.

  • Incure Epo-Weld™ TCG thermally conductive greases are used to fill microscopic air gaps between heat-generating components and heat sinks, heat spreaders, or cooling surfaces. They improve thermal transfer efficiency in power electronics, LED modules, motor drives, and RF amplifiers, lowering junction temperatures and extending component service life.

  • Epo-Weld™ TCG-10 is alumina-filled and electrically insulating — ideal for mounting transistors and rectifiers where short-circuit risk must be eliminated. TCG-30 is aluminum-filled and electrically conductive, suited for grounding connections and low-resistance thermal interfaces. TCG-40 is copper-filled for maximum electrical conductivity, recommended for high-current switches and grounding lugs where voltage drop must be minimised.

  • It depends on the grade. Epo-Weld™ TCG-10 is electrically insulating — the alumina filler conducts heat while blocking current, preventing short circuits in dense PCB layouts. TCG-30 and TCG-40 are electrically conductive due to their metallic fillers (aluminum and copper respectively), making them suitable for grounding and bonding applications.

  • All three Epo-Weld™ TCG grades maintain stable, non-drying performance up to 550°F (288°C). They do not dry out, crack, or lose thermal conductivity under prolonged thermal cycling, ensuring consistent heat transfer performance over the service life of the assembly.

  • Apply Epo-Weld™ TCG greases by spreading a thin, uniform film on the mating surface using a spatula, brush, or automated dispensing equipment. The material should completely fill surface irregularities without excess — excess grease can migrate and contaminate nearby components. No curing is required; the grease provides thermal contact upon mechanical assembly.

  • Yes. Epo-Weld™ TCG-10 is particularly well-suited for high-power LED assemblies and COB modules where the LED substrate must be thermally bonded to a heat sink or PCB core while maintaining electrical isolation. Reducing thermal resistance at this interface directly lowers LED junction temperature, improving light output stability and extending LED lifespan.

Ready to Specify Epo-Weld™ Thermally Conductive Greases?

Tell us your substrate, power dissipation, and insulation requirements —
our team will recommend the right TCG grade for your application.

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