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CoolPoly D-series - Thermally Conductive Dielectric Plastics

CoolPoly® D-series
CoolPoly® D-series Thermally Conductive Plastics exhibit electrical isolation in addition to their thermal conductivity. Common plastics are also electrical insulators. The electrical insulation property of the material is measured as electrical resistivity and is typically in the range 1012 to 1016 ohm-cm for both conventional plastics and D-Series plastics. The thermal conductivity of CoolPoly D-Series plastics enhances their electrical isolation and dielectric properties beyond the range of conventional plastics.

Conventional plastics are considered thermal insulators. The thermal conductivity of CoolPoly D-series thermally conductive plastics range from 1.0 W/mK to 10 W/mK. This exceptional level of thermal conductivity in a plastic is 5 to 100 times the value of conventional plastics. The optimal level of thermal conductivity for any application depends on the power input, size of the part and the convection conditions. Celanese technical service staff can help engineers determine the appropriate materials for their application and heat transfer requirements.

CoolPoly D-series thermally conductive plastics surpass the isolation and dielectric properties of conventional plastics. The heat transfer inherent in CoolPoly D-series plastics reduces the localized overheating due to electrical charging and retards the formation of carbon tracking.

CoolPoly D-series plastics are characterized for their electrical isolation and dielectric characteristics in addition to their general thermal, mechanical and physical properties. Properties measured include volume and surface resistivity, dielectric constant and dissipation factor, dielectric strength, comparative tracking index, arc resistance, hot wire ignition, high voltage arc tracking rate, and high voltage arc resistance to ignition.
D-Series Material Data:
PartNumber Color

D1202 - Thermally Conductive and Dielectric PP

datasheet  |  processing guideline  |  MSDS

D3612 - Thermally Conductive and Dielectric PA

datasheet  |  processing guideline  |  MSDS

D5110 - Thermally Conductive and Dielectric PPS

datasheet  |  processing guideline  |  MSDS

D5502 - Thermally Conductive and Dielectric LCP

datasheet  |  processing guideline  |  MSDS

D5506 - Thermally Conductive and Dielectric LCP

datasheet  |  processing guideline  |  MSDS

D8102 - Thermally Conductive and Dielectric TPE

datasheet  |  processing guideline  |  MSDS

D8104 - Thermally Conductive and Dielectric TPE

datasheet  |  processing guideline  |  MSDS

Common uses for CoolPoly D-series plastics include encapsulation of wire wound and electromechanical devices, resistors, switches, relays, sensors, and connectors.

CoolPoly D-series plastics combine the thermal conductivity and electrical isolations in standard pellet form suitable for thermoplastic injection molding and other processes (e.g. extrusion). CoolPoly D-series plastics are available in bag, drum, and Gaylord packaging.

Related Information

Thermally Conductive Plastics For Enclosures

CoolPoly thermally conductive plastic enclosures have been commercially proven to reduce cost by as much as 50% compared to die cast aluminum housings while providing equivalent heat transfer. >>More

Thermally Conductive Plastics For Printed Circuits

CoolPoly thermally conductive plastics enhance the performance of molded interconnects by dissipating heat and reducing temperature in board mounted components.  >>More

CoolPoly® Material Solutions

A detailed look at CoolPoly solutions in specific types of applications.

CoolPoly® Selection Tool

Not sure which material best suits your application?  Try our new CoolPoly selection tool.


Answers to the most commonly asked questions regarding thermally conductive polymers.

See Also

E-Series Datasheets

D-Series Datasheets

CoolPoly Selection Tool

Processing Guidelines


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