Electrically Conductive Silicone Rubber

Unlock Conductivity and Protection with Electrically Conductive Silicone Rubber

In modern electronic and industrial applications, the need for materials that offer both the flexibility and environmental resistance of silicone, alongside the ability to conduct electricity, is increasingly vital. Electrically conductive silicone rubber, like our VCL75 grade, is a specialised elastomer modified with conductive carbon fillers, to provide a controlled pathway for electrical current. This unique combination of properties makes it an essential material for applications requiring electrostatic discharge (ESD) protection, EMI/RFI shielding, and flexible electrical connections, often in demanding environments where traditional conductive materials would be unsuitable.

Key Features of Electrically Conductive Silicone Rubber

Electrically conductive silicone rubber provides a unique blend of electrical functionality and the well-known benefits of silicone.

• Controlled Electrical Conductivity: Contains conductive particles that enable the material to conduct electricity, with a typical volume resistivity of around 2 Ω·cm for VCL75, suitable for static dissipation and low-current conductivity.
• Electrostatic Discharge (ESD) Protection: Effectively dissipates static electricity, preventing damage to sensitive electronic components.
• EMI/RFI Shielding: Can be used to create gaskets and seals that attenuate electromagnetic and radio frequency interference, protecting electronic devices from external noise and preventing them from emitting interference.
• Wide Temperature Range: Maintains its electrical and mechanical properties across a broad temperature spectrum, allowing for use in diverse thermal environments.
• Excellent Flexibility and Resilience: Inherits the flexibility and elastic recovery of silicone, allowing it to conform to irregular surfaces and maintain sealing effectiveness.
• Environmental Resistance: Resists degradation from UV light, ozone, moisture, and a range of chemicals, ensuring reliable performance in harsh conditions.
• Good Mechanical Properties: Exhibits good tensile strength and tear strength, providing durability.

Applications of Electrically Conductive Silicone Rubber

• EMI/RFI Shielding Gaskets and Seals: Used in electronic enclosures, connectors, and panel seals to provide both environmental sealing and effective shielding against electromagnetic interference.
• ESD Protection Mats and Components: Fabricated into mats, pads, and other components to safely dissipate static charges in electronics manufacturing, cleanrooms, and other static-sensitive areas.
• Flexible Connectors and Contacts: Can be used to create flexible electrical contacts and connectors in various electronic devices and systems.
• Heater Elements: In some formulations, can be used as a flexible heating element for low-power heating applications.
• Grounding Straps and Components: Provides a flexible and reliable grounding path for electronic equipment and systems
• Pressure Sensors and Keypads: Utilised in the construction of flexible pressure sensors and conductive layers in keypads and switches.

Industries Utilising Electrically Conductive Silicone Rubber

Electrically conductive silicone rubber is a critical material in industries where managing electrical conductivity and providing environmental protection for sensitive equipment are essential.

• Electronics: Widely used for ESD protection, EMI/RFI shielding, and flexible interconnects in consumer electronics, industrial controls, and telecommunications equipment.
• Aerospace and Defence: Employed in critical electronic systems for shielding, grounding, and environmental sealing in aircraft, spacecraft, and military equipment that must perform reliably in challenging conditions.
• Automotive: Used in various electronic control units, sensors, and battery systems, particularly in electric vehicles (EVs), for shielding, grounding, and flexible electrical connections.
• Medical Devices: Utilised in some medical equipment and sensors where flexible, biocompatible, and sometimes conductive materials are required, such as in certain electrodes or connectors.
• Industrial Manufacturing: Applied in automation, robotics, and process control equipment for ESD protection and shielding.

By incorporating electrically conductive silicone rubber, manufacturers can enhance the performance, reliability, and safety of their electronic systems and equipment, ensuring protection against static damage and electromagnetic interference while providing durable environmental sealing in demanding applications.