# Prusa Research launches 400°C HT Hotend for CORE One series

> **Key takeaway:** The new HT Hotend enables 400°C printing on Prusa CORE One+/L+ machines to support industrial-grade polymers.

**Published:** 2026-10-21T10:00:25+00:00 
**Source:** Prusa Research Blog 
**Category:** open-hardware 
**Canonical URL:** https://fosswire.org/news/prusa-research-launches-400c-ht-hotend-for-core-one-series.html 

## Summary
Prusa Research has released the HT Hotend, a quick-swap upgrade for the CORE One+ and CORE One L+ printers. This hardware allows for temperatures up to 400°C, enabling the use of high-performance polymers like PPS-CF, PPS-GF, and PPA-CF Core. To support this ecosystem, Prusa is also introducing new HighTemp build sheets and specialized filaments.

## Technical capabilities of the HT Hotend
- Enables printing temperatures up to **400°C**.
- Improves interlayer adhesion for existing Prusaments: **PA11 Carbon Fiber (+23%)**, **ASA (+18%)**, **PC Blend (+7%)**, and **PC Blend Carbon Fiber (+7%)**.
- Supports high-performance polymers including **PPS-CF**, **PPS-GF**, and **PPA-CF Core**.
- Compatible with **CORE One+/L+**; not compatible with **INDX**.
- Requires **HighTemp sheets** for optimal adhesion with materials like PEI, PEEK, and PPS.
- Advanced materials like PEEK or PEKK may be limited by the printer's **60°C chamber temperature**.

## Why it matters
The upgrade provides a more affordable path to industrial-grade 3D printing by bringing high-temperature capabilities to desktop-class machines.