Reliable insulation for the most demanding requirements
Within an optimally designed insulation system, mica products provide both the main insulation and the partial conductor insulation. In combination with carrier materials such as glass fabric, high-temperature films or non-woven fabrics, and through impregnation with synthetic resins, high-performance, durable insulation solutions are created for the most demanding operating conditions in:
- High-voltage motors
- High-voltage generators
- Wind turbines
- Transformers
Technical structure of mica products
Mica products are based on mica paper, which is combined with different carrier materials and resin systems depending on the requirements. This results in tailor-made materials for specific technical applications.
- The mica paper forms the electrically insulating base and consists of 100% natural mica.
- Depending on the application, carrier materials such as glass fabric, high-temperature films such as PET or PI, and non-woven fabrics are used. These enhance the mechanical properties and enable an application-specific design.
- Resin systems such as epoxy, polyester or silicone resins are used for impregnation and stabilisation. They improve mechanical strength and contribute to long-term performance.
Your benefits at a glance
Krempel mica products offer key benefits for manufacturers and operators of electrical machinery:
- Maximum electrical performance
High dielectric strength, excellent resistance to partial discharges and corona effects ensure safe high-voltage insulation. - Reliability throughout the system
As part of a compatible insulation system, mica products make a significant contribution to the functionality and service life of electrical machines. - Process- and application-specific customisation
Tailor-made solutions using different resin systems and processing technologies (e.g. VPI or Resin-Rich) to meet demanding customer requirements.
Our KREMICA product portfolio
| Product | Application | Structure | Typical application |
|---|---|---|---|
| KREMICA.flex | VPI and resin-rich process | Glass fabric or film (e.g. PET; PI) + flexible, cured resin binder based on mica | Conductor insulation, main insulation, slot lining, end winding and connection insulation |
| KREMICA.therm | Resin-rich process | Glass fabric or films (e.g. PET; PI) + mica paper, 30–40% thermosetting resin binder | Main insulation |
| KREMICA.por | VPI process | Glass fabric or films (e.g. PET; PI) non-woven fabrics + mica paper, low resin content with or without accelerator | Main insulation |
