3DXTech ThermaX HTS1 Break-Away High-Temp Support for ULTEM & PEEK
Break-Away High-Temp Support for ULTEM & PEEK
A USA-made break-away support filament engineered to survive the extreme nozzle and chamber temperatures of ULTEM (PEI), PEEK, and PEKK printing — where PVA, HIPS, and ordinary supports melt, char, or fuse to your part. High glass-transition (225 °C) and heat-deflection (205 °C) temperatures keep the support standing through the whole build, then it peels away cleanly by hand. Full specifications →
Availability and lead time vary by reel size — contact Rev1 to confirm before ordering. Need a print profile or help pairing HTS1 with your model material? Call (248) 707-2950.
USA-made support material, with a real datasheet behind it.
3DXTech compounds ThermaX HTS1 in the USA with a published technical data sheet and lot traceability — no mystery support filament that degrades in a hot chamber. Rev1 Technologies is your authorized 3DXTech reseller and US support partner, Auburn Hills, Michigan.
The support material engineered for ultra-high-temp polymers.
Printing ULTEM, PEEK, or PEKK means running nozzle temperatures in the 350–400 °C range inside an actively heated chamber. At those temperatures, standard supports — PVA, HIPS, or a lower-temp thermoplastic — soften, char, or bond permanently to the part, ruining overhangs and bridges. ThermaX HTS1 is 3DXTech’s answer: a break-away support compounded specifically to stay dimensionally stable at those temperatures, hold its shape through the entire build, and then release from the model by hand once the part cools. It runs from the second nozzle of a dual-extruder or IDEX high-temp printer, so you get the geometry freedom of complex overhangs without machining a separate fixture or gambling on an unsupported bridge.
Peels away by hand — no solvent bath, no waiting.
A mechanical-release support built for the materials that break every other support.
HTS1 is a break-away support, not a soluble one. Because high-temp engineering polymers already resist the aggressive chemistry a soluble support would need, HTS1 is designed to separate cleanly through a defined interface layer instead. You snap and peel the support off after the build — no solvent tank, no dissolving cycle, and none of the moisture and disposal issues that come with washing away support. That keeps your workflow fast and your high-value ULTEM or PEEK part chemically untouched.
The numbers that let it stand up in the chamber.
All figures from the 3DXTech ThermaX HTS1 technical data sheet (TDS Rev 1.0) — see the full TDS for test methods and standards.
A high Tg (DSC) means the support stays rigid at the chamber temperatures used for PEI and PEEK, instead of slumping under the model.
Deflection temperature at 1.80 MPa (ISO 75). The support holds overhangs and bridges accurately through the entire high-temp build.
Consistent density (ISO 1183) for predictable flow and reliable interface layers between support and model.
Dial the second nozzle to match your model material.
HTS1 runs on the high-temp printers you already use for ULTEM and PEEK. Match these ranges on the support extruder and the interface bonds well but still releases.
Print from an all-metal high-temp hotend on the support extruder.
A hot bed with a suitable adhesive gives the first layers grip on a large, hot build plate.
An actively heated chamber is recommended for high-temp models — keep it no higher than 225 °C for HTS1.
Dry the filament at 120 °C for 4 hours and keep it dry — moisture degrades interface quality.
No special layer-height concerns — run 0.10 mm or higher to match your model material.
No special nozzle is required for HTS1 itself — use the hardened nozzle your model material needs.
Paired with the high-performance polymers that need it.
3DXTech lists HTS1 as a break-away support for its ThermaX ultra-performance family. It is an ideal companion for ULTEM 1010 (PEI) and the other high-temp polymers below.
From slice to clean part — how HTS1 fits your process.
Assign HTS1 to the support extruder in your slicer, print the model and support together, then remove the support by hand after the build cools.
Set HTS1 as the support/interface material for your ULTEM or PEEK model and tune the interface gap for clean separation.
The model prints in your high-temp polymer while HTS1 lays down supports from the second nozzle in the same build.
Once the part cools, snap and peel the support off by hand — no solvent bath, no dissolving cycle — leaving a clean, chemically untouched part ready for post-processing.
Check the reel fits your printer.

Standard spool dimensions — confirm it fits your AMS or dry box.
3DXTech ships HTS1 on consistent, standard reels.
Before you buy, check the outer diameter, width, and center bore against your printer’s spool holder, high-temp material bay, or drybox. Open the full 3DXTech reel infographic for the exact dimensions of the 500 g, 1 kg, and 2 kg spools.
View reel dimensions →Break-away high-temp support vs. the alternatives.
Where HTS1 sits against the supports engineers reach for on high-temp printers — confirm exact figures against each TDS.
| ThermaX HTS1 | Soluble support (PVA) | HIPS / breakaway PLA | |
|---|---|---|---|
| Max working temp | ~205–225°C | Low | Low |
| Removal method | Break away by hand | Dissolve in water | Break away by hand |
| Runs with ULTEM / PEEK | Yes — built for it | No (degrades) | No (melts) |
| Solvent / wash needed | None | Water bath + drying | None |
| Best for | High-temp PEI/PEEK/PEKK builds | Complex internal channels in low-temp materials | Everyday low-temp supports |
Qualitative comparison among support materials; confirm exact properties against each TDS. Availability and pricing vary by reel size and date.
3DXTech ThermaX HTS1 Technical Data
RESOURCES
Datasheets & Print Support
Everything you need to qualify and print ThermaX HTS1.
WHY REV1 TECH
Authorized 3DXTech Reseller. High-Temp Materials Specialists.
Rev1 Technologies is an authorized 3DXTech reseller in Auburn Hills, MI, supplying genuine USA-made engineering filament and support material with real print support.
We help you pair the right support with your high-temp model material, dial in the interface, and keep production running.
FAQ
3DXTech ThermaX HTS1 — Common Questions
What is HTS1 support used for?
HTS1 is a break-away support material for ultra-high-temperature polymers — ULTEM (PEI), PEEK, PEKK, PPSU, PSU, and PPS. It runs from the support extruder of a dual-extruder high-temp printer and holds overhangs and bridges through the hot build, then peels off by hand.
Is HTS1 soluble or break-away?
Break-away. High-temp engineering polymers resist the chemistry a soluble support would need, so HTS1 is designed to separate mechanically at the support interface. You remove it by hand — no solvent bath and no dissolving cycle.
What temperatures does it print at?
Extruder 350–380 °C and bed 120–160 °C, with a heated chamber recommended (no higher than 225 °C). Dry the filament at 120 °C for 4 hours before use, and print at a layer height of 0.10 mm or higher.
Can I use it with ULTEM 1010?
Yes — ULTEM 1010 (PEI) is exactly the kind of high-temp model material HTS1 is engineered to support. Set HTS1 as the support/interface material in your slicer and tune the interface gap for clean release.
Do I need a special printer?
You need a dual-extruder (or IDEX) high-temp printer capable of the nozzle, bed, and chamber temperatures required for your model material. HTS1 itself needs no special nozzle, but the printer must reach high-temp conditions.
Which reel size should I buy?
Start with a 500 g spool to validate your interface settings, then scale to 1 kg or 2 kg for production. Pick the reel size in the buy-box; price scales with the spool.
Is it made in the USA?
Yes — 3DXTech compounds ThermaX HTS1 in the USA with a published technical data sheet and lot traceability.
What is the difference between HTS1 and HTS2?
3DXTech offers its high-temp support in more than one grade tuned to different model materials and printers. This page is the HTS1 grade paired with ULTEM (PEI) and the high-temp family listed above. If you are unsure which grade matches your printer and model material, tell us your setup and we will confirm the right one.
Can Rev1 help me set it up?
Yes. Tell us your model material, printer, and part geometry and our materials team confirms fit, suggests interface settings, and quotes the right reel or a case. Call (248) 707-2950.