Bondtech Heat Break Kit for Prusa Mini


This Stainless Steel heat-break made by Bondtech for the Prusa Mini solves the heat-creep issues revealed during extensive testing on the Prusa Mini. The adjusted length of the PTFE tube also prevents clogs between tube and heat-break.

Ready To Ship


Bondtech Heat Break Kit for Prusa Mini

Now shipping with silver based thermal paste.

Included in this kit:

  • 1x 32×5.48 mm stainless steel heat-break
  • 1x 35.3 mm 2/4 chamfered PTFE tube


We recommend to use the included silver based thermal grease to properly fit the Bondtech heat-break in the Mini’s heat-sink.

Notes on twisting the heat-break

To address the heat creep issue the design features a narrower section with thinner walls. When removing the heater block or changing nozzles, caution is required.

Before removing the heater block from the heat-break (or vice versa), heat-up the nozzle, hold the heater block and release some tightening pressure from the nozzle. Let the whole group cool down. After, you can simply unscrew the heat-break from the heater block.

To remove or replace a nozzle, never forget to secure the heater block before twisting the nozzle.

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