Conductive thermoplastic compounds are divided into major classifications based on their electrical properties and decay rates for static charges.
Anti-Static Compounds (1010 to 1012)
Provide a very slow decay of static charge, from hundredths of to several seconds, preventing accumulations that may be a source of discharge or initiate other nearby electrical events.
With our all-polymeric PermaStat® line of compounds these properties are inherent to the material and not humidity dependent for activation or limited by fragility like coatings.
Static Dissipative Compounds (106 to 1012)
Allow for the dissipation or decay of electrical charges at a much faster rate than anti-static materials, generally within miliseconds. Measured resistance is uniform and usually strong.
Materials that offer ideal ESD protection (106 to 109) are at the low end of the static dissipative range. Compounds available include carbon particulate filled grades in our ESD-A product line.
Conductive Compounds (101 to 106)
Decay rates measured in nanoseconds are instant enough to provide a ground pathway and bleed off stronger electrical charges.
This level of conductivity is achieved by incorporating carbon fiber, high levels of carbon powder, or other conductive additives and are available in our ESD-C product line.
EMI/RFI Shielding Compounds (101 to 104)
Qualified by means other than electrical conductivity, materials of this type are utilized for their ability to absorb or reflect electromagnetic energy and thus provide shielding from or for sources of interference.
Products that provide shielding properties utilize stainless steel or metalized fibers and are offered in our EMI product line.