Materials for protection and prevention of ElectroStatic Discharge (ESD) can be categorized into three distinct groups -- separated by their ranges of conductivity to electrical charges. |
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Anti-Static: Resistivity generally between 109 and 1012 ohms per square. Initial electrostatic charges are suppressed. May be surface resistive, surface-coated or filled throughout. |
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Static Dissipative (SD) : Resistivity generally between 106 and 109 ohms per square. Low or no initial charges -- prevents discharge to from human contact. May be either surface-coated or filled throughout. |
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Conductive (CN) : Resistivity generally between 103 and 106 ohms per square. No initial charges, provides path for charge to bleed off. Usually carbon-particle or carbon-fiber filled throughout. |
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CN 
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