TPU Based Ice9 Filament
Ice9 TPU is a thermally conductive that is semi-flexible and has a thermal conductivity of 6 W/m-K in the print direction. It is a thermoplastic polyurethane-based filament that works best with FDM printers that print flexible filaments. With a shore hardness of 88A, it’s not super floppy, but still very soft. The filament is not electrically conductive and has a maximum temperature use of 110°C. The material is ideal for heat sinks, liquid cooling, and the most demanding thermal applications.
Properties
Thermal
Thermal conductivity, in-plane
Thermal conductivity, through-plane
Specific heat
Coefficient of thermal expansion
Heat deflection temperature, 0.45 MPa
Max. continuous temperature
Metric
English
6 W/m-K
2 W/m-K
1300 J/kg-K
80 ppm/°C
65 °C
110 °C
54 BTU·in/hr·ft²·°F
14 BTU·in/hr·ft²·°F
0.31 BTU/lb·°F
44 ppm/°F
149 °F
230 °F
In-Plane Thermal Conductivity
Through-Plane Thermal Conductivity
Mechanical
Shore Hardness
Flexural modulus
Tensile strength, Break
Elongation at break
Impact strength, Izod notched
Metric
English
88 A
95 MPa
27 MPa
10 %
No Break
–
15 ksi
4 ksi
10 %
No Break
Settings
Temperature
Extruder temperature
Bed temperature
Cooling fan
Value
230-270 °C
0-50 °C
60 %, Bridging Only
Slicer
Print speed
Layer
Retraction distance
Extra restart distance
Infill for best thermal performance
Value
20-125 mm/s
0.2-0.7 mm/s
6 mm
0.5 mm/s
95-100 %
Guidelines
Nozzle diameter
Extruder type (1.75 mm)
Print bed preparation
Drying instructions
Storage instructions
Part removal from bed
PEI flex sheet
Suggestions
0.4-1.0 mm
Direct drive, dual gear highly suggested
Painter’s Tape, with Glue Stick if not using heated bed
4 hr @ 90°C
Sealed bag
Heat bed to 70°C then gently remove with spatula.
50°C during print, flex sheet to pop off
Recommended 3D Printer
Qidi X-Plus 3
Qidi X-Max 3
Bambu P1P
Creality CR-10 V3
280x280x270mm build volume, dual gear direct drive, around $650
325x325x315mm build volume, dual gear direct drive, around $950
256x256x256mm build volume, dual gear direct drive, $599
300x300x400mm build volume, direct drive, regularly around $400