Electrically Conductive Silicone Sheeting & Uncured Compounds
EMI Shielding and ESD Protection for Electronics
Electrically conductive silicone sheets provide shielding against electromagnetic interference (EMI) shielding and protection against electrostatic discharge (ESD). Yet they also offer the temperature and environmental resistance of silicone elastomers.
Every batch of material is Made in USA under ElastaPro’s ISO 9001:2015 / AS9100D quality system and shipped with a complete Certificate of Analysis (COA). Compare our low minimums and fast lead times to the competition’s.
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We supply continuous rolls, pre-cut sheets, and uncured compounds with low minimums and fast lead times.
Request a Quote (RFQ)Electrically Conductive Silicone Sheets
Electrically conductive silicone sheet from ElastaPro is available in 65 durometer and black in color.
65 Durometer Electrically Conductive Grade
Standard Sheet Sizes & Roll Dimensions
This solid silicone sheet from ElastaPro is available in these sizes and roll dimensions.
| Measurement | Type | Imperial | Metric |
|---|---|---|---|
| Width | Standard | 36" | 914 mm |
| Width | Standard | 48" | 1219 mm |
| Width | Custom | Up to 67" | Up to 1701.8 mm |
| Thickness | Range | 0.020" to 0.375" | 0.508 mm to 9.525 mm |
| Cut Sheet | Standard | 12″ × 12" | 30.48 cm x 30.48 cm |
| Cut Sheet | Standard | 24″ × 24″ | 60.96 cm x 60.96 cm |
| Cut Sheet | Standard | 36″ × 36″ | 91.44 cm x 91.44 cm |
| Cut Sheet | Standard | 48" x 48" | 121.92 cm x 121.92 cm |
| Cut Sheet | Custom | — | — |
| Linear Length | Continuous | Up to 300" ft | Up to 91.44 m |
How Electrically Conductive Silicones Work
Electrically conductive silicone sheeting delivers EMI shielding and ESD protection by incorporating conductive filler particles throughout a flexible silicone elastomer matrix.
When these conductive materials are dispersed at a sufficient concentration, they form a continuous, three-dimensional pathway for electrical current to flow across the gasket or sheet.
- EMI shielding: This network acts as a conductive barrier that absorbs, reflects, and attenuates unwanted radio frequency radiation, preventing sensitive electronics from causing or receiving interference.
- ESD protection: The surface and volume conductivity allow safe, controlled dissipation of static charges to ground before high-voltage electrostatic events can build up and damage delicate circuit components.
By pairing these electrical properties with silicone’s inherent resistance to extreme temperatures, moisture, and compression set, conductive silicone sheeting provides a reliable environmental seal while maintaining critical electrical continuity.
Electrically Conductive Silicone FAQs
What is electrically conductive silicone, and how does it provide EMI shielding and ESD protection?
Electrically conductive silicone is an engineered elastomer that blends silicone rubber with conductive filler particles (such as nickel-graphite, silver-plated aluminum, or carbon). This compound retains silicone’s signature flexibility and extreme temperature resistance while providing a continuous conductive path.
This path allows the material to ground static charges (electrostatic discharge / ESD) and reflect or absorb high-frequency radiation to prevent electromagnetic interference (EMI) in sensitive electronic enclosures.
What filler materials are used in ElastaPro electrically conductive silicone sheets?
ElastaPro conductive silicones utilize high-performance filler particles customized for specific electrical performance and environmental conditions. Common filler systems include carbon-filled compounds for cost-effective ESD grounding and static dissipation, as well as metal-based or metal-coated particle fills (like nickel-graphite or silver-plated aluminum) designed to achieve low volume resistivity and high dB attenuation for demanding military, aerospace, and industrial EMI shielding requirements.
Can electrically conductive silicone sheets be supplied with pressure-sensitive adhesive (PSA)?
Yes. Conductive silicone sheeting can be backed with specialized pressure-sensitive adhesives to streamline gasket assembly and component placement. For applications requiring unbroken z-axis conductivity across the bond line, conductive pressure-sensitive adhesives are available. Non-conductive acrylic or silicone PSAs can also be applied in zones where structural adhesion is needed without disrupting the main conductive path.