What's in a name?
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A further look into the key features of
Intrinsic Dissipative Polymers. . .




Intrinsic - "of itself," meaning that unsurpassed ESD control is due to the unique properties of the plastic alloy.

Forget about conventional additives such as:
carbon or metal fillers
topical coatings
internal anti-static additives


IDP materials are formulated to a strict protocol in a silicone-free environment, for critical applications where the following factors count the most:

very low outgassing - Plastics can release gas or unwanted residues at elevated temperatures. Because the IDP additive is chemically coupled with the base polymer, outgassing is reduced, and with some polymers, almost eliminated.

low ionic contamination - IDP materials are screened and tested to provide the lowest levels of contaminates like chloride, bromide and other corrosives.

low particle generation - made without conventional additives, which shed particles, IDP materials are intrinsically particle-free.   In applications that involve wear, inert lubricants are blended to further reduce friction and particle generation.

non humidity dependent - humidity decreases the resistance of any surface, causing greater conductivity.  IDP materials are intrinsically dissipative, and do not require humidity to function, as do topically coated and internal antistats.

washable/reusable/recyclable - intrinsically cost-effective because they are progressively formulated to endure without the loss of essential ESD properties.  IDP materials can be reground and reprocessed *indefinitely*.



D issipative - "the range of surface resistivity that lies between purely conductive and purely insulative," meaning that every material can be represented as ranging somewhere on the Conductivity Spectrum shown below.

As you can see, IDP materials are formulated for optimal static dissipative range,
with a static decay rate of 5000 volts to zero in less than two seconds!

Conductivity Chart: shows IDP in the optimum dissipative range given in chart below



The following chart shows the definitive range for each material classification
as per EOS/ESD S11.11-1993.

Comparable Surface and Volume Classification Ranges
Material ClassificationSurface Resistance
per S11.11
In Ohms
Surface Resistivity
per ASTM D257-78
In Ohms/Square
Comparable
Volume Resistivity
Classification Range
In Ohm-cm
Insulative1.0x1011 or greater1.0x1012 or greater1.0x1011 or greater
Static
Dissipative
Less than 1.0x1011
but equal to or greater than 1.0x104
Less than 1.0x1012
but equal to or greater than 1.0x105
Less than 1.0x1011
but equal to or greater than 1.0x104
ConductiveLess than 1.0x104Less than 1.0x105Less than 1.0x104
Static ShieldingLess than 1.0x103Less than 1.0x104Less than 1.0x103




Polymers - "the family of plastics available in the IDP formulation."
Click on any of our polymers listed below for a complete data sheet of properties.
  • ABS
  • Acetal
  • Acrylic
  • Nylon
  • Polycarbonate
  • All materials can be made in Custom COLORS



    Would you like to inquire for more specific information?

    IDP Home Page Inquiry Form ESD Resource Library James R. Skinner
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