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LEWISBins+ ESD safe materials conform to ANSI/ESD S20.20*1999
requirements for ESD packaging. This
 standard requires conductive materials surface resistance to be <1.0
x 104 ohms and dissipative materials to be >1.0 x 104 ohms to <1.0 x 1011 ohms when tested
per EOS/ESD S11.11.The materials also conform to the static decay requirement of FTM-101B, Method
4046.1 dissipating a 5,000 volt charge to 0 when grounded in less than 2 seconds. Contact your
LEWISBins+ sales representative for more details on other dissipative materials that are available.Click here to see LEWISBins' ESD
Safe Products.
Conductive Material - XL Material is a thermoplastic polypropylene material based
upon carbon black that has a surface resistance of less than 1.0 x 104 ohms or surface resistivity
of < 1.0 x 105 ohms/square. XL material has a static decay rate from 5,000 volts to 0 of less
than 2 seconds.This material has a useful temperature range of 40
oF to 225
oF, with intermittent use recommended at the higher end of the temperature range.The
electrical properties of this material are permanent and unaffected by washing.
Dissipative Material - LS Material is a polypropylene material that is on upper
end of the dissipative range.The material has a surface resistance greater than or equal to 1.0 x
108 ohms, but less than 1.0 x 1011 ohms or surface resistivity greater than or equal to 1.0 x 109
ohms/square, but less than 1.0 x 1012 ohms/square. LS material has a static decay rate from 5,000
volts to 0 of less than 2 seconds.This material has a useful temperature range of 40
oF to 225
oF, with intermittent use recommended at the higher end of the temperature range.
Electrical properties are affected by humidity.This material is available on a made-to-order basis
only.
Dissipative Material - SD SMC Material is a thermoset polyester based material
that is on the lower end of the dissipative range.The material has a surface resistance greater
than or equal to 1.0 x 104, but less than or equal to 5.0 x 108 ohms/square and a surface
resistivity greater than or equal to 1.0 x 105 ohms/square, but less than or equal to 5.0 x 109
ohms/square.This material has a useful temperature range of -60
oF to 250
oF, is autoclavable and does not melt at high temperatures making it ideal for handling
hot parts.The electrical properties of this material are permanent and unaffected by washing.
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