Break-away support compounded to survive a PEEK or PEI build: Tg 225 °C, where PVA and PLA-based supports would decompose. Needs a dual-extruder machine rated for high-temperature materials.
Open in interactive comparisonSupport for PEEK, PEI and PC-class prints, where PVA and PLA-based supports would decompose
Break-away support compounded to survive a PEEK or PEI build: Tg 225 °C, where PVA and PLA-based supports would decompose. Needs a dual-extruder machine rated for high-temperature materials.
High-temperature supports are used when a model polymer's nozzle and chamber conditions would soften or degrade ordinary support. 3DXTech matches MTS1 to PC and PC/ABS, while HTS2 is listed for PEKK, PEEK, PEI, PPSU, PSU and PPS. These THERMAX materials are breakaway supports: they provide a temporary foundation during the hot build and then require mechanical access for removal.
The category also includes a different removal method. IEMAI identifies HT-SP as alkaline-soluble support for high-performance polymers and their reinforced compounds, with an alkaline bath rather than plain water. That can address geometry that traps breakaway support, provided the model tolerates the bath and liquid can reach the support. Temperature capability, adhesion and removal chemistry must therefore be checked for the exact support grade rather than inferred from the high-temperature label.
FFF/FDM sacrificial support · THERMAX HTS2 and the manufacturer-listed model-material pairings · Manufacturer-listed applications
3DXTech lists HTS2 for several high-temperature model polymers and explicitly describes it as a breakaway support for dual-extruder printers.
Check the model’s material and process notes before choosing a filament.
Representative catalog values. Check the exact grade and its linked conditions before using a setting.
—
—
——
—
—Actively heated chamber required
Actively heated chamber required — it is used inside high-temperature builds
—
—
—Open a topic to explore the complete data. Each value keeps its original conditions, units and dated sources.
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Base polymer / chemistry | Break-away support compounded to survive high-temperature print chambers; 3DXTech sells separate grades for PC/ABS and for the PAEK and PEI class | 2 sources
|
| Density (g/cm³) | 1.37 (3DXTech THERMAX HTS1, ISO 1183) | 1 source
|
| Typical price (USD/kg) | 1 kg-equivalent spools cluster near 168 | 1 source
|
| Price range across brands (USD/kg) | 100–290 across grades; 3DXTech THERMAX MTS1 100 at 2 kg, HTS2 168 at 250 g, HTS1 250 at 500 g, IEMAI 3D HT-SP 290 at 1 kg | 2 sources
|
| Market availability (1–5) | Niche, a handful of specialist brands | 2 sources
|
| Spool sizes & diameters | 1.75 mm; 250 g, 500 g, 1 kg and 2 kg spools | 1 source
|
| Typical applications | Support for PEEK, PEI and PC-class prints, where PVA and PLA-based supports would decompose | 2 sources
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Enclosure / chamber requirement (1–5) | Actively heated chamber required — it is used inside high-temperature builds | 1 source
|
| Overall printing difficulty (1–5) | Expert / industrial hardware only | 1 source
|
| Extruder requirement | A dual-extruder machine rated for high-temperature materials; 3DXTech states the grade is intended for dual-extruder printers designed to print high-temp materials | 1 source
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Nozzle hardness required (1–4) | Brass fine indefinitely | 1 source
|
| Abrasiveness (1–5) | Non-abrasive | 1 source
|
| Nozzle clog risk (1–5) | Moderate — needs dry filament and a clean nozzle; 3DXTech lists no special nozzle concerns but a mandatory 120 °C pre-dry for HTS1 and 80 °C for MTS1 | 2 sources
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Effect of moisture on strength | No dry-versus-conditioned figures are published; 3DXTech mandates a 120 °C, 4 h pre-dry for HTS1 and 80 °C for MTS1 because trapped water flashes to steam at these nozzle temperatures | 2 sources
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Wear resistance & friction | 3DXTech marks tensile strength, modulus and elongation as not applicable for its support grades — they are not characterised as structural materials | 1 source
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| HDT at 1.8 MPa (°C) | 205 (THERMAX HTS1, printed XY, ISO 75 at 1.8 MPa) | 1 source
|
| Glass transition (Tg) (°C) | 225 (3DXTech THERMAX HTS1, DSC) — high enough to stay solid inside a PEI or PEEK build | 1 source
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Electrical & ESD properties | Surface resistance above 10^13 ohm/sq on all three THERMAX support grades (ASTM D257) — insulating | 3 sources
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Fume toxicity (1–5) | Low hazard — minimal VOC and particle emission; none of these materials was in the chamber study | |
| Ventilation / filtration requirement (1–5) | Open a window / occasional ventilation |
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Support material pairing | This is the support material. MTS1 is matched to PC/ABS and PC; HTS1 and HTS2 to the higher-temperature classes | 2 sources
|
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Soluble in | Aqueous alkali, not water: IEMAI specifies an alkaline bath in an ultrasonic cleaner until the support dissolves. | 1 source
|
| Solvent welding & smoothing agent | None — the alkaline bath dissolves the support rather than welding anything. | 1 source
|
Values describe representative grades, not every spool. Manufacturer datasheets and independent tests retain their source labels and dates. Printed orientation, test method, conditioning and formulation can change results. Unknown values are —. A listed use is not a certification. Shore A, Shore D and Rockwell hardness are separate scales.
Historical USD/kg snapshots. Read each listing’s sale/from qualifiers, spool mass, source date, shipping and tax notes. Product figures are separate from the material summary.
$200.00 / 2 kg spool = $100.00/kg, 3dxtech.com product catalogue, Aug 2026
Handle thermax-mts1-1. Break-away support matched to PC/ABS and PC.
Open product listing ↗| Density (g/cm³) | 1.10 (ISO 1183) |
|
|---|---|---|
| Nozzle temperature (°C) | 310 (TDS printed-specimen condition) |
|
| Bed temperature (°C) | 120 (TDS printed-specimen condition) |
|
| HDT at 0.45 MPa (°C) | 112 (ISO 75, 0.45 MPa) |
|
| Glass transition (Tg) (°C) | 128 (DSC) |
|
| Electrical & ESD properties | Surface resistance >10^13 Ω/sq (ASTM D257) |
|
$42.00 / 250 g spool = $168.00/kg; 500 g spool $125.00 ($250/kg), 3dxtech.com product catalogue, Aug 2026
Handle thermax-hts2-1.
Open product listing ↗| Density (g/cm³) | 1.24 (ISO 1183) |
|
|---|---|---|
| Nozzle temperature (°C) | 360–375 (TDS printed-specimen condition) |
|
| Bed temperature (°C) | 120–140 (TDS printed-specimen condition) |
|
| HDT at 0.45 MPa (°C) | 172 (ISO 75, 0.45 MPa) |
|
| Glass transition (Tg) (°C) | 187 (DSC) |
|
| Electrical & ESD properties | Surface resistance >10^13 Ω/sq (ASTM D257) |
|
$125.00 / 500 g spool = $250.00/kg; 1 kg spool $225.00 ($225/kg), 3dxtech.com, Aug 2026
Tg 225 °C.
Open product listing ↗| Density (g/cm³) | 1.37 (ISO 1183) |
|
|---|---|---|
| HDT at 1.8 MPa (°C) | 205 (ISO 75, 1.8 MPa) |
|
| Glass transition (Tg) (°C) | 225 (DSC) |
|
| Electrical & ESD properties | Surface resistance >10^13 Ω/sq (ASTM D257) |
|
$290.00 / 1 kg spool, store.iemai3d.com, Aug 2026
Alkaline-soluble, for PEEK, PEI, PPSU and their composites rather than for engineering polymers. IEMAI 3D publishes no specification for this support material: the store page lists only diameter, weight and colour, and the IEMAI3D datasheet library covers its printing filaments and pellets but carries no entry for E-WATER, E-REMOVE or HT-SP.
Open product listing ↗
3D Printing Info