Prusa released Prusament PETG ESD on Tuesday, a carbon-fiber and carbon-nanotube-filled, electrostatic-dissipative PETG sold at $56.99 per kilogram in black. Prusa says it is targeting electronics production rather than hobbyist cases: PCB fixtures and holders for soldering, IC trays, and jigs for testing multiple boards at once.
3DXTech and Polymaker already sell ESD-rated PETG, but Prusa claims to be first to add carbon fiber alongside carbon nanotubes for the dissipative effect, which it says improves dimensional accuracy and cuts warping.
| Filament | Price |
|---|---|
| Prusament PETG ESD | $56.99 |
| Polymaker Fiberon PETG-ESD | $65.98 |
| 3DXTech ESD-PETG | $105 |
That makes Prusa’s version the cheapest of the three and the only one with carbon fiber reinforcement.
Prusa has not published a datasheet with strength figures. It says the material has increased stiffness and reduced toughness, comparable to its existing Prusament PETG Carbon Fiber, but the carbon fiber loading may differ since PETG ESD is built for static dissipation rather than mechanical strength. Prusa also says it uses the filament in its own production line, printing fixtures that prevent overcoating of edges during powder coating of its print sheets.
The pitch is manufacturing cost: printed ESD fixtures on-site instead of CNC-machined trays, with short lead times. Whether that holds up against machined ESD trays on cost or wear life isn’t addressed in Prusa’s materials, and no independent mechanical testing exists yet to check the stiffness and toughness claims.