Ice9 Flex Filament


Ice9 Flex is a patent pending thermally conductive filament and electrically non-insulating FDM filament with high toughness.

Estimated lead time for orders is currently 3-5 business days.


A new and improved version of TCP Flex with 33% higher thermal conductivity (Now at 8 W/m-K). Thermally conductive and electrically non-insulating FDM printing filament. Use this material when the highest thermal conductivity is required and electrical insulation is not important. The material has an electrical resistivity < 10^5 ohm-cm making it suitable for EMI/RFI shielding applications but not carrying electrical current.

This material is flexible – for best results use an FDM printer that is designed to print TPE materials. Please see the datasheet for more information on suggested print settings.

TCPoly can also print prototypes in-house with short lead times. Please contact us at for more details.

Product Datasheet Download

Printing Guide Download

Safety Datasheet Download

Additional information

Thermal Conductivity (W/m-K)


Extruder Temperature (°C)


Bed Temperature (°C)



Dark Gray

Filament Diameters (mm)

1.75, 2.85

Spool Filament Weights (g)

1,000, 500

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