POTTING
Industrial potting compounds for demanding applications
Potting compounds play a central role particularly in the electrical industry. Electronic components must not only function reliably but also be protected against external influences such as moisture, vibration, heat, or chemical exposure. Modern potting materials provide these protective functions while simultaneously contributing to thermal and electrical performance – especially in assemblies with a high packing density and an increasing complexity.
In addition to mechanical protection, potting compounds in industrial applications serve as insulation, electrical decoupling, and heat dissipation. The choice of material strongly depends on the specific application. This is where high‑performance casting compounds with tailored mechanical and thermal properties are used.
Key product properties
- Temperature stability: Operating temperatures up to +150 °C; suitable for use in high‑voltage modules, motor control units, or inverter housings
- Thermal conductivity: Efficient heat dissipation is essential; certain systems are suitable for thermal decoupling
- Chemical and media resistance: Resistant to aggressive environmental influences such as oils, solvents, or moisture
- High electrical insulation performance: Dielectric strength > 20 kV/mm and high surface resistance reliably prevent short circuits and leakage currents
- Low viscosity for complex geometries: Electronic potting compounds fill even the smallest gaps without causing air bubbles
- Flexibility with resistance to thermal cycling: Flexible epoxy resins for electronic solutions compensate for thermal stresses and protect pressure‑sensitive components
Which industrial casting compounds do we offer?
EPOXONIC offers a broad range of special formulations. Each of our industrial casting compounds is the result of intensive material development and targeted adaptation to specific applications. Below are examples of our standard potting compounds:
- EPOXONIC 281: With excellent electrical insulation properties and high thermal conductivity, this system is suitable for anyone requiring a high‑performance epoxy potting compound for temperature‑sensitive applications.
- EPOXONIC 373: A flame‑retardant, elastic system with high elongation at break. Ideal for sensor applications in environments subject to vibration or shock loads.
- EPOXONIC 374: Offers high impact resistance combined with low expansion. These properties make it an ideal solution for automotive electronics and highly stressed connectors.
| Product name | EPOXONIC 281 | EPOXONIC 373 | EPOXONIC 374 |
|---|---|---|---|
| Operating temperature | -40 °C to +150 °C | -40 °C to +150 °C | -40 °C to +150 °C |
| Viscosity at 25°C [mPas] | 4.000 | 50.000 | 3.500 |
| Glass transition temperature Tg [°C] | 65 | -40 | 65 |
| Shore hardness | D 87 | A 90 | D 90 |
| Fire behaviour UL 94 | V0 | V0 | n.d. |
| Thermal conductivity [W/mK] | 1,3 | 1,0 | n.d. |
| Dielectric strength [kV/mm] | > 25 | > 16 | n.d. |
Here you can download the complete standard product portfolio of EPOXONIC.
Fields of application for industrial casting compounds
The areas of application for epoxy casting compounds are as diverse as the world of electronics itself. In addition to standard applications such as the potting of sensors, LEDs, or complete electronic assemblies, the following areas are becoming increasingly important:
- Battery technology: High‑voltage cells and battery management systems require electrical potting compounds that provide safe thermal and electrical insulation.
- E‑mobility & charging infrastructure: Medium resistance and temperature stability of epoxy resins are of particular importance here.
- Telecommunications & power grid technology: Protection of fiber‑optic components using transparent potting compounds that are waterproof, including UV‑curing or dual‑curing properties.
- Industry 4.0 / IoT: Sensor encapsulation in microsystem technology or smart devices relies on electronic casting resins with extremely low viscosity.
- Aerospace engineering: Solutions with exceptional resistance to temperature cycling and enhanced mechanical damping dominate this field.
- LED technology and optics: Use of transparent electronic potting compounds tailored to specific refractive indices and optical clarity.
Why EPOXONIC is your partner for industrial casting compounds
With more than 30 years of experience, EPOXONIC is a leading supplier of high‑performance formulations for industrial applications. Our expertise lies not only in product development but also in close collaboration with our customers to create project‑specific solutions. Whether for series production or custom applications, we provide reliable and efficient materials for your needs. Rely on proven quality, comprehensive know‑how, and individual consultation—with every single industrial potting compound.
If you would like to learn more about our industrial potting compounds, please feel free to contact us for a technical consultation.
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In addition to numerous epoxy resin formulations, we also offer adhesives and casting resins for professional further processing as part of industrial applications.