Conductive elastomers
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Conductive elastomers are engineered materials that combine elastomeric flexibility with electrical conductivity, making them ideal for EMI/RFI shielding in demanding environments. These materials provide excellent sealing and shielding performance, ensuring reliable protection for electronic components against electromagnetic interference.
Euro Technologies’ conductive elastomers includes solutions tailored for various sealing, environmental, and shielding requirements in industrial, aerospace, defense, and telecom applications. Custom formulations and profiles are available to meet specific performance and compliance needs.
Conductive Elastomers for High-Performance EMI/RFI Shielding
Conductive elastomers combine the flexibility and resilience of elastomeric matrices (such as silicone, fluorosilicone, or EPDM) with high electrical conductivity provided by microscopic metallic fillers (including Ag/Cu, Ni/C, and Ag/Al). These engineered materials deliver simultaneous EMI/RFI shielding and robust environmental IP sealing (up to IP67/IP68) for sensitive electronic enclosures operating in demanding environments.
Key Technical Advantages:
- High Shielding Effectiveness: Superior attenuation against electromagnetic interference across MHz to GHz frequency spectrums.
- Environmental IP Sealing: Outstanding protection against dust, moisture, fluids, and harsh operating temperatures (-55°C to +160°C).
- Custom Profiles & Converting: Available as extruded cords, O-rings, die-cut gaskets, molded sheets, and custom-engineered geometries.
- Galvanic Corrosion Control: Specialized filler formulations designed to minimize galvanic corrosion when paired with aluminum and metallic housings.
Euro Technologies provides tailored conductive elastomer solutions engineered for aerospace, defense, telecommunications, automotive/EV, and industrial electronics applications. Through custom converting, precision die-cutting, and expert application engineering, we support your design from custom prototyping to volume production.
Frequently Asked Questions about Conductive Elastomers
How do conductive elastomers act as both EMI shielding and environmental seals?
Conductive elastomers integrate highly conductive metallic particles (such as silver, copper, or nickel) within a flexible polymer matrix (like silicone or fluorosilicone). The elastomeric base provides resilience and elastic recovery to block moisture and dust (up to IP67/IP68), while the microscopic conductive particle network creates a continuous path to reflect and absorb electromagnetic interference (EMI/RFI).
How do you select the correct metallic filler (Ag/Al, Ni/C, Ag/Cu) for a specific application?
Filler selection depends on required shielding effectiveness and galvanic corrosion compatibility with the enclosure metal:
- Silver/Aluminum (Ag/Al): Preferred for aerospace and defense due to high shielding efficiency and galvanic compatibility with aluminum housings.
- Nickel/Graphite (Ni/C): Highly cost-effective solution for industrial and automotive applications, providing strong corrosion resistance.
- Silver/Copper (Ag/Cu): Designed for maximum electrical conductivity and high attenuation performance (>100 dB).
What custom converting and fabrication options are provided by Euro Technologies?
Euro Technologies supplies comprehensive custom converting based on customer drawings: extruded solid and hollow profiles, vulcanized O-rings, precision die-cut flat gaskets, and custom molded parts. Conductive pressure-sensitive adhesives (PSA) can also be applied to streamline automated assembly operations.
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