Gotthardt Isolierteile GmbH has specialized in the processing of high-quality insulation materials for over 60 years. As non-conductive materials, they ensure that electrical currents are reliably confined to live parts. Our customers from the automotive and electrical industries, mechanical engineering and energy technology rely on our experience, precision and ISO-certified quality.
What Are Insulation Materials?
Insulation materials are materials without electrical conductivity. They are used to protect components from electrical, thermal or mechanical influences. Typical applications include electric motors, generators, transformers or battery modules in e-mobility.
- Dielectric strength
- Thermal resistance
- Mechanical stability
- Chemical resistance
Overview of Insulation Classes
Insulation materials are classified according to their maximum operating temperature.
| Class | Max. Temperature | Typical Materials |
|---|---|---|
| A | 105 °C | Pressboard 3010, 3020 |
| B | 130 °C | Polyester film (PET), DMD laminate, polyester nonwovens |
| F | 155 °C | Saturated DMD, NMN Nomex/Mylar/Nomex laminates |
| H | 180 °C | Nomex 410, 411, 414, NKN Nomex/Kapton/Nomex laminates |
| C | 220 °C+ | Polyimide film Kapton |
Industrial Application Areas
- Automotive industry and e-mobility: Insulation in battery cells and drive systems
- Electric motors and generators: Phase insulation, slot lining, slot wedges
- Energy technology: Transformers, high-voltage components
- Mechanical and plant engineering: Electrical and thermal insulation of complex assemblies
Technical Aspects for Material Selection
- Thermal conductivity and permissible operating temperature
- Flammability and UL listings
- Compressive strength and dimensional stability
- Resistance to moisture and chemicals
Our Brands and Partners
- Hostaphan (Mitsubishi Polyester Film GmbH)
- Triflexil (Pucaro Elektro-Isolierstoffe GmbH)
- Trivoltherm (Krempel GmbH)
- Nomex (DuPont de Nemours)
- Kapton (DuPont de Nemours)
- DyTerm / DyFilm (Coveme Spa)
- Mylar (DuPont Teijin Films)
- Evitherm (Krempel GmbH)
- Viledon (Freudenberg Performance Materials SE & Co. KG)
All branded products are UL-listed and stand for the highest quality.
Why GOBA?
- Over 60 years of experience in electrical insulation
- ISO 9001 and ISO 14001 certified
- Highest precision in slitting, stamping and converting
- Custom solutions tailored exactly to customer specifications
- Reliable delivery capability and close collaboration with OEMs