SSP makes EMI shielding silicones for EMI gaskets and O-rings. Compare our materials to Parker Chomerics CHO-SEAL, Nolato Jabar, and W.L. Gore EMI shielding.
SSP supplies EMI shielding silicones as sheets, rolls, extrusions, and moldable compounds. Sheets and rolls are available with a pressure-sensitive adhesive (PSA) backing.
In addition to EMI shielding materials, SSP offer fabricated products, included EMI gaskets and EMI O-rings in M83528 slash sizes.
SSP makes EMI shielding that meets the lettered requirements of MIL-DTL-83528, a standard from the U.S. military. All of our M83528 shielding silicones are part of the Qualified Product List (QPL) from the Defense Logistics Agency (DLA). Choose Type A, B, C, D, and K materials for EMI gaskets and EMI O-rings.
SSP makes nickel-plated aluminum filled silicones and flurorosilicones that are designed for corrosive environments with heavy salt spray, including military ships and marine applications. Salt Spray Test data is available for these corrosion resistant EMI gasket materials.
SSP makes softer, electrically conductive silicones in durometers as low as 30 Shore A. These EMI silicones allow for lower enclosure forces and better sealing capabilities. Products include offsets to discontinued EMI gasket materials from W.L. Gore.
EMI shielding materials that use fluorosilicone as the base elastomer provide fuel and solvent resistance. Applications include jet fuels, de-icing fluids, and other harsh chemicals. These electrically conductive silicones include a QPL listed MIL-DTL-83528 material.
SSP makes low outgassing, electrically conductive silicone materials for space and high vacuum applications. These EMI shielding materials are tested to ASTM E595 via third-party laboratories.
These EMI silicones are extremely conductive elastomers where the lowest possible surface conductivity is required. They are SSP’s most electrically conductive EMI gasket materials.
These EMI shielding elastomers are UL94 V0 vertical burn tested and provide reliable environmental sealing along with flame resistance.
Conductive fabric reinforced shielding elastomer for maximum structural stability used in thin wall parts to prevent tearing. Learn more about these electrically conductive silicones.
SSP’s most cost-effective EMI shielding materials, SSP502-65, supports thinner, smaller, and lighter-weight designs. Unlike silver-filled silicones, this nickel-graphite filled EMI shielding material isn’t subject to fluctuating silver prices.
SSP2514-75 is a nickel coated graphite filled conductive EPDM based shielding elastomer. Use this EMI gasket material when you need excellent ozone and UV resistance along with good compression set and solvent resistance.
Download our EMI/RFI Shielding Materials Guide or our EMI/Silicones Catalog , or scroll to see the different types of electrically conductive compounds that we offer.
You can also see a breakdown of our most popular products by filler.
Specialty Silicone Products (SSP) manufactures high-performance electrically conductive silicones used for EMI/RFI shielding gaskets, O-rings, and environmental seals. Our advanced conductive elastomers offer dual protection: they block electromagnetic interference (EMI) and radio frequency interference (RFI) while protecting sensitive electronics from harsh environmental elements like moisture, dust, and extreme temperatures.
Whether you need military-grade MIL-DTL-83528 materials or cost-effective commercial solutions, SSP provides electrically conductive silicone rubber in continuous rolls, sheets, molded profiles, and custom extruded shapes.
To make silicone rubber electrically conductive, the raw elastomer base is compounded with conductive metal particles or metal-coated particles. The specific choice of filler directly impacts the material’s cost, shielding effectiveness, and galvanic compatibility with mating surfaces.
SSP custom-formulates compounds using the industry’s most reliable conductive filler materials:
Nickel-Graphite: The industry standard for commercial and industrial applications. It offers excellent shielding effectiveness, great galvanic corrosion resistance against aluminum, and a lower cost profile.
Silver-Aluminum: The preferred choice for military and aerospace environments. It provides high conductivity and meets stringent MIL-DTL-83528 specifications while remaining lighter than pure silver.
Silver-Copper: Offers exceptionally high electrical conductivity and superior shielding effectiveness, making it ideal for specialized, high-attenuation electronic enclosures.
Silver-Nickel: Combines the excellent conductivity of silver with the robust environmental and wear resistance of nickel.
Pure Silver: Provides the absolute lowest volume resistivity (highest conductivity) for mission-critical applications that demand maximum shielding performance.
The base material acts as the carrier for the conductive matrix. Depending on your operational environment, you must choose a base elastomer that can withstand local chemical and thermal stressors.
Standard Silicone: Provides excellent high and low temperature resistance, outstanding UV and ozone stability, and long-lasting flexibility. Ideal for general industrial and electronic outdoor enclosures.
Fluorosilicone: Adds superior chemical resistance to the mix. If your electrically conductive silicone gaskets will come into contact with aviation fuels, solvents, oils, or harsh chemicals, fluorosilicone is the required base material to prevent swelling and degradation.
SSP is fully integrated to provide electrically conductive silicones in the precise format your manufacturing or die-cutting process requires:
Continuous Rolls & Sheets: Available in widths up to 15 inches and custom thicknesses to minimize material waste during die-cutting.
Extruded Profiles: High-precision solid or hollow cords, D-strips, and P-strips for groove-mounted enclosure designs.
Molded Parts & O-Rings: Custom compression-molded components designed to meet complex geometric tolerances.
Contact SSP to find the exact electrically conductive silicone formulation for your project, or request a quote for custom testing and sample sheets.