Nickel-Coated Graphite EPDM EMI Shielding Elastomer
SSP2514-75
Non-Silicone, EPDM-Based Conductive Elastomer for EMI/RFI Gaskets with Enhanced Environmental Resistance
SSP2514-75 is a 75-durometer EPDM elastomer filled with nickel-coated graphite. It is designed for applications requiring a balance of EMI/RFI shielding, environmental durability, and cost efficiency—particularly in outdoor, industrial, or chemically exposed environments where silicone or fluorosilicone may not be recommended.
Material Overview
- Base Polymer: EPDM (75 Shore A)
- Conductive Filler: Nickel-coated graphite
- Category: Non-silicone conductive elastomer (not MIL-DTL-83528)
- Typical Physical Properties:
- Hardness: ~75 Shore A
- Tensile strength: ~440 psi
- Elongation: ~430%
- Tear strength: ~80 ppi
- Volume resistivity: ~0.04 ohm·cm (max spec ~0.1)
- Thermal range: approximately –45°C to +150°C
- Form Availability: Cured sheet stock, extruded profiles, or moldable compound
Key Features
- Non-Silicone EPDM Composition – Provides excellent resistance to ozone, UV, weathering, and certain solvents — ideal for outdoor or industrial conditions where silicones may degrade.
- Nickel-Graphite Conductive System – Offers reliable conductivity for EMI shielding without reliance on precious metal fillers.
- High Mechanical Strength – Good tensile, elongation, tear strength, and compression behavior support durable sealing performance.
- Versatile Conversion Options – Compatible with die-cutting, waterjet, molding, or other gasket-fabrication processes.
- Cost-Effective EMI Material – Provides useful shielding performance at a lower cost than silver-filled elastomers.
Applications
- Outdoor electronics, telecom cabinets, and industrial control enclosures
- Utility and infrastructure equipment exposed to sunlight, moisture, or weather extremes
- Junction boxes, housings, and access panels requiring EMI shielding plus environmental sealing
- Applications where silicone or fluorosilicone is incompatible due to chemical exposure
- EMI interface gaskets that also require robust environmental performance
Data Sheets
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