Silicone in Electrical Engineering

Our Expertise – High-Quality Silicone Products for Electrical Engineering

Electrical engineering is currently undergoing an unprecedented transformation. Digitalization, renewable energies, and the increasing electrification of all areas of life place entirely new demands on insulation and sealing materials. In this dynamic environment, silicone has established itself as an indispensable material, convincing with its exceptional electrical and mechanical properties.

As a synthetic polymer, silicone combines unique properties that make it the ideal material for demanding electrotechnical applications. Its excellent insulating properties remain constant over a wide temperature range, while also ensuring excellent weather resistance. Lindemann Silikon GmbH & Co. KG has established itself as a competent partner in the electrical engineering industry and has been developing innovative silicone solutions for complex electrotechnical challenges for years.

Key Application Areas of Silicone in Electrical Engineering

Electrical Insulation: Reliable Protection under Extreme Conditions

Electrical insulation is the heart of every electrotechnical application. Modern electrical systems operate with ever higher voltages and frequencies, which places exceptional demands on the insulation materials used. Our silicone tubes offer excellent dielectric properties and ensure reliable insulation even under the most extreme conditions.

The particular advantages of silicone are evident in its constant insulation capability over a temperature range of -60°C to +230°C. This property makes it the first choice for applications where conventional insulation materials would fail. At the same time, silicone offers excellent dielectric strength and retains its insulating properties even in high humidity.

Cable Protection and Cable Routing: Durable Solutions for Critical Infrastructures

Modern cable systems must function reliably for decades, often under the most adverse environmental conditions. Our silicone fabric hoses offer optimal protection for sensitive lines and cables. The textile reinforcement provides mechanical stability, while the silicone matrix offers reliable protection against environmental influences.

Especially in outdoor installations, where cables are exposed to UV radiation, temperature fluctuations, and aggressive chemicals, our silicone solutions demonstrate their superiority. They prevent the ingress of moisture, protect against mechanical damage, and ensure the long-term stability of critical connections.

Electronics Housings: Precise Sealing for Sensitive Components

The increasing miniaturization of electronic components makes precise sealing solutions indispensable. Our silicone molded parts are developed individually according to customer specifications and offer tailor-made solutions for complex housing geometries. They protect sensitive electronics from dust, moisture, and electromagnetic interference.

The hydrophobic properties of silicone are of particular importance here. The water-repellent surface effectively prevents the ingress of moisture, while low water absorption ensures long-term stability. These properties make silicone the ideal choice for outdoor electronics and maritime applications.

Lighting Technology: Innovative Solutions for Modern Lighting Systems

The LED revolution has fundamentally changed lighting technology. Modern lighting systems must not only be efficient but also function reliably for decades. Our silicone profiles offer optimal solutions for sealing luminaire housings and protecting sensitive LED modules.

Especially in outdoor lighting, which is permanently exposed to environmental influences such as moisture, dust, and aggressive vapors, silicone solutions demonstrate their superiority. Their excellent UV resistance prevents material fatigue and discoloration, while temperature stability ensures reliable function even in highly efficient LED systems.

Product Portfolio for Electrical Engineering

Silicone Tubes: Versatile Insulation and Protection Solutions

Our silicone tubes for electrotechnical applications are manufactured to the highest quality standards and offer exceptional insulation properties. They are used as cable protection tubes, insulating sleeves, and protective sheaths for sensitive lines. The high flexibility allows for easy installation even in complex geometries.

Various wall thicknesses and diameters allow for optimal adaptation to specific requirements. Special formulations offer additional properties such as increased flame retardancy or improved mechanical strength for particularly demanding applications.

Molded Parts by Injection Molding: Precision for Complex Requirements

Complex electrotechnical applications often require customized solutions. Our state-of-the-art injection molding process enables the production of precise silicone molded parts with complex geometries. These are used as connector seals, insulators, and protective covers for electronic components.

Each molded part is developed according to individual customer specifications and can be realized with different hardnesses, colors, and surface structures. The precision of the injection molding process ensures tight tolerances and consistently high quality even for large quantities.

Inflatable Seals: Innovative Solutions for Variable Requirements

For applications with variable sealing requirements, our inflatable silicone seals offer innovative solutions. These intelligent systems can be activated or deactivated as needed and offer optimal adaptation to different operating conditions.

In electrotechnical applications, for example, they enable the temporary protection of maintenance openings or the variable sealing of cable entries. Their precise controllability makes them the ideal choice for automated systems and Industry 4.0 applications.

Typical Applications in Practice

Energy Distribution: Reliability for Critical Infrastructures

Modern energy distribution systems must meet the highest safety and reliability requirements. Our silicone products play a crucial role in protecting critical components. In transformers, they ensure reliable insulation and cooling, while in switchgear, they protect sensitive electronics from environmental influences.

Inverters for renewable energies benefit from the excellent temperature stability of our silicone solutions. They ensure reliable function even at extreme ambient temperatures and contribute to the long-term stability of these critical components.

Industrial Automation: Precise Solutions for Complex Systems

Industrial automation places the highest demands on the materials used. Sensors, actuators, and control components must function reliably in harsh industrial environments. Our silicone solutions offer optimal protection against dust, moisture, and chemical influences.

Silicone connector seals ensure reliable electrical connections even under extreme conditions. Their flexibility allows for easy assembly and maintenance, while their long-term stability minimizes downtime.

Telecommunications: Protection for Critical Connections

Modern telecommunication networks are the backbone of our digital society. Fiber optic cables, antenna systems, and network components must function reliably for decades. Our silicone products offer optimal protection for these critical infrastructures.

Silicone cable entries and housing seals prevent the ingress of moisture and ensure the long-term stability of sensitive optical and electronic components. Their UV resistance makes them the ideal choice for outdoor installations.

Medical Technology: Biocompatible Solutions for Sensitive Applications

Medical technology places special demands on the materials used. Biocompatibility, sterilizability, and long-term stability are crucial factors. Our medical silicone formulations meet the strictest standards and offer reliable solutions for medical devices and implants.

Electrical insulation in medical devices must not only be technically perfect but also meet the highest safety standards. Our silicone solutions offer the required reliability and contribute to patient safety.

Innovation and Future Technologies

Electromobility: Mastering New Challenges

Electromobility brings entirely new demands on insulation and sealing materials. High-voltage battery systems, charging stations, and electric motors require specialized silicone solutions that meet both electrical and thermal requirements.

Our development department continuously works on innovative solutions for these future technologies. Special formulations offer improved insulation properties with simultaneously optimized heat dissipation.

Renewable Energies: Sustainability through Durability

Photovoltaic systems and wind power plants must function reliably for decades. Our silicone products contribute significantly to the long-term stability of these systems. They protect sensitive electronics from environmental influences and ensure optimal energy yield over the entire service life.

Smart Grid: Intelligent Networks for the Future

The digitalization of energy supply requires new approaches in insulation and communication technologies. Our silicone solutions support the development of intelligent power grids through reliable insulation and protection of critical communication components.

Quality and Certification

International Standards and Norms

All our products meet the relevant international standards for electrotechnical applications. Regular tests and certifications ensure that our silicone solutions comply with the highest quality and safety requirements.

Continuous Quality Control

Our comprehensive quality management system ensures consistently high product quality. From raw material selection to final testing, all processes are subject to strict controls. Modern testing methods enable the precise characterization of electrical and mechanical properties.

Advantage Silicone

• Excellent electrical insulation properties over a wide temperature range
• Exceptional temperature resistance from -60°C to +230°C
• Superior UV resistance and weather resistance
• Hydrophobic surface with low water absorption
• Excellent chemical resistance
• Long-term stability without material fatigue
• Biocompatibility for medical applications
• Flame retardancy according to international standards

Important Standards

• DIN VDE 0472 – Test procedures for cables and insulated wires
• IEC 60216 – Electrical insulating materials – Properties of thermal endurance
• UL 94 – Flammability test for plastic materials
• IEC 60950 – Safety of information technology equipment
• DIN EN 45545 – Fire protection on railway vehicles
• IEC 61215 – Photovoltaic modules – Qualification and type approval
• ISO 10993 – Biological evaluation of medical devices

Typical Applications

• Cable protection tubes and insulating sleeves
• Connector seals and housing seals
• Insulators for high-voltage systems
• LED luminaires and outdoor lighting
• Transformers and inverters
• Photovoltaic and wind power plants
• Medical devices and implants
• Telecommunication and network technology
• Industrial automation and sensor technology
• Electromobility and charging technology

Contact us now

Are you interested in our products or have a special request for your electrotechnical project? Our experienced team will be happy to assist you and develop the optimal silicone solution for your specific requirements.

Use our contact form or call us directly. We look forward to supporting you in your next project and demonstrating the advantages of our high-quality silicone products. Together, we shape the electrotechnical future.