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Potting & Encapsulants for Electric Motor Thermal Management
Our potting and encapsulants provide a robust thermal interface between the stator winding and heat sink. They are highly thermally conductive and low in viscosity, enabling them to flow into fine gaps. In addition, their high Tg allows for Class H and N ratings with no thermal stress cracks.
Potting & Encapsulant Key Benefits
- Increase Power: Get more torque or horsepower from the same sized motor, or get the same amount of power from a smaller motor.
- Improve Performance: Our encapsulants facilitate optimum heat transfer because of their high thermal conductivity and low viscosity.
- Extend Life: Keep your motor running at reduced operating temperatures.
Digital Brochure: CoolTherm® Materials for Motor Applications
Heat robs a motor of power and shortens its life - CoolTherm® conductive epoxy and silicone encapsulants help manage that heat, which enables you to increase the power density and life of your motor.
Featured Blog: Wisconsin Racing Students Find the Right Formula for Success With CoolTherm®
We assisted Wisconsin Racing with keeping the heat out of the team's custom electric vehicle motor design in its Formula SAE Electric Vehicle. Learn how CoolTherm® EP-2000 helped the team find the formula for success in our recent blog.
OPTIMIZING FLUX HYBRIDS’ MOTORS – THE IMPACT OF COOLTHERM® POTTING
We’re excited to share our latest case study on the impact of CoolTherm potting materials on Flux Hybrid motors! This research highlights how these innovative solutions enhance thermal management, improve reliability, and extend motor lifespan. Discover the key insights and benefits for your applications
Contact Our Team
Call Us at 877-275-5673
Our experts are experienced in assisting motor manufacturers to select materials that lead to higher performance and lower costs. With over 40 years of industry expertise and a comprehensive product portfolio available, we can help you stick to your schedule and stay on budget with our CoolTherm potting compounds.
CoolTherm® Thermal Management Solutions
| Product | Chemistry | Thermal Conductivity (W/m·K) |
Viscosity (cP @ 25°C) |
Density (g/cm3) |
Shore Hardness |
|---|---|---|---|---|---|
| Potting & Encapsulants |
Silicone & Epoxy |
0.7 - 4.0 |
1,900 - 30,000 |
1.5 - 3.2 |
A45 - A60, D90 - D95 |
Motor Potting FAQs
Expand each section below for answers to frequently asked questions on motor potting.
Whitepaper: Accelerated Endurance Tests Prove Efficacy of Potted Motors
For years, motor designers have been battling heat in motor designs. Download our white paper to read how potting your electric motor can yield improved performance, reliability, and efficiency.
Whitepaper: How Proper Application of Thermally Conductive Materials Will Improve Motor Power Density
Excess heat can reduce the reliability of motors and shorten their lifetimes. Good thermal management in electric machines allows for cooler, higher-density motors.
How Potting Helps with Thermal Management
Learn more about how potting materials can be used in electronic applications requiring heat management.
How Do OEMs Manage Heat in Their Designs?
To protect the batteries and surrounding elements from the associated heat, thermal management is necessary for EVs. Thermal management materials are comprised of heat transfer technologies designed to quickly expel heat and increase the limits of product power density while providing electrical insulation.