Outside limits
Prusament PEI on the MK4S
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- Nozzle400–420 °C (752–788 °F)
- Bed140–160 °C (284–320 °F)
- Speed—
- Dry—
- Density1.27 g/cm³
Print at 400–420 °C (752–788 °F) nozzle, 140–160 °C (284–320 °F) bed.
MK4S maximums: nozzle 290 °C (554 °F), bed 120 °C (248 °F).
Sources & notes
Prusa MK4S with Prusament PEI: The listed nozzle temperature starts at 400 °C (752 °F), above this printer's maximum of 290 °C (554 °F). This printer cannot print this material at the recommended nozzle temperature.
Dataset imported 13 October 2026. Manufacturer page checked 14 October 2026.
Filament source · Printer source · Filament JSON
Prusa lists a 290 °C maximum nozzle temperature, a 120 °C maximum heatbed temperature, a Nextruder direct drive, and a brass CHT nozzle.
The comparison table on that page marks the enclosed chamber as not included, with an optional enclosure. MMU3 is optional.
Questions
Can the Prusa MK4S reach the listed PEI nozzle temperature?
The listed nozzle temperature starts at 400 °C (752 °F), above this printer's maximum of 290 °C (554 °F). This printer cannot print this material at the recommended nozzle temperature.
Can the MK4S reach the listed bed temperature?
The listed bed temperature starts at 140 °C (284 °F), above this printer's maximum of 120 °C (248 °F). This printer cannot print this material at the recommended bed temperature.
Is an enclosure required?
Whether an enclosure is required is not in our current sources.
Is a hardened nozzle recorded?
A hardened nozzle is not recorded for this filament.