RepRapper Tech Conductive TPU

Need a black specialty filament that can carry a little current for ESD covers, sensors, or classroom circuit experiments? RepRapper Tech Conductive TPU is an electrically conductive flexible filament filled with graphene and carbon — useful for functional prototypes, not a copper-wire replacement.

What's Included

• 1 × 1 kg (2.2 lb) spool of RepRapper Tech Conductive TPU, 1.75 mm, Black
• Vacuum-sealed bag with desiccant

Print Settings

• Dry thoroughly before printing — this filament picks up moisture more easily than standard grades
• Keep speeds moderate; stay under about 100 mm/s until you have a tuned profile
• Avoid aggressive overhang-heavy models until your settings are dialed in
• Nozzle and bed: start from RepRapper Tech TPU ranges and tune for the conductive fill

Material

• Electrically conductive TPU with graphene and carbon additives
• Diameter 1.75 mm, about ±0.03 mm
• 1 kg net spool
• Colour: Black

Expect high-kohm resistance in a printed path. About 100 kΩ over 10 cm is a useful ballpark from RepRapper’s conductive family; your real part will shift with path length, infill, and geometry, so bench-test your design. This is not copper-wire conductivity.

Good To Know

• Not a substitute for copper wire, PCB traces, or certified ESD packaging systems
• Dry before printing; wet conductive filament prints poorly and can look electrically “dead”
• Conductivity scales with infill and geometry — test your design
• Specialty conductive grade — not a colour option of standard TPU 95A

Good For

• Simple 3D printed circuits, switches, and sensor elements (prototype / education)
• Covers and fixtures that need a basic ESD path in dry conditions
• Touch-capacitive experiments and LED demos (validate on the bench)
• Classroom projects that need a conductive black print without machining metal