3D Printing InfoFilament comparison
PA11 vs HT soluble
Compare printing settings, strength, heat resistance, dated prices and sources.
2 selected · all documented properties
| Property | PA11 (Nylon 11)PA | High-temperature supportSUPPORT |
|---|---|---|
| Market snapshot | ||
| Listing priceUSD/kg; dated snapshots | $194.98/kg median; $194.98–$194.98/kg across 1 dated product listings | $209.00/kg median; $100.00–$290.00/kg across 4 dated product listings |
| Identity & Market | ||
| Base polymer / chemistry | Polyamide 11, polymerised from castor-oil-derived aminoundecanoic acid — a bio-based nylon[1][2] | Break-away support compounded to survive high-temperature print chambers; 3DXTech sells separate grades for PC/ABS and for the PAEK and PEI class[3][4] |
| Densityg/cm³ | 1.02 (ISO 1183)[1] | 1.37 (3DXTech THERMAX HTS1, ISO 1183)[3] |
| Typical priceUSD/kg | Not documented | 1 kg-equivalent spools cluster near 168[5] |
| Price range across brandsUSD/kg | Not documented | 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[5][6] |
| Market availability1–5 | Niche, a handful of specialist brands[2] | Niche, a handful of specialist brands[5][6] |
| Spool sizes & diameters | 1.75 mm; 1 kg spools[2] | 1.75 mm; 250 g, 500 g, 1 kg and 2 kg spools[5] |
| Typical applications | Tough, chemically resistant functional parts; Prusa targets it at impact-loaded and vibration-loaded components[2] | Support for PEEK, PEI and PC-class prints, where PVA and PLA-based supports would decompose[3][4] |
| Diameter tolerance± mm | ±0.02 (Prusament)[1] | Not documented |
| Printing Parameters | ||
| Nozzle temperature°C | 275 ± 10 (Prusament)[1] | Not documented |
| Bed temperature°C | 100 ± 10 (Prusament)[1] | Not documented |
| Enclosure / chamber requirement1–5 | Enclosure required (passive) — Prusament specifies a 55 ± 5 °C chamber[1] | Actively heated chamber required — it is used inside high-temperature builds[3] |
| Recommended chamber temperature°C | 55 ± 5 (Prusament)[1] | Not documented |
| Bed surface & adhesion aid | PA nylon sheet (Prusament)[1] | Not documented |
| Overall printing difficulty1–5 | Advanced — enclosure, hardware upgrades, tuning[1][7] | Expert / industrial hardware only[3] |
| Extruder requirement | Prusa printed its test specimens with a high-flow CHT nozzle[1] | 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[8] |
| Hardware Wear & Reliability | ||
| Nozzle hardness required1–4 | Brass fine indefinitely for unfilled grades[7] | Brass fine indefinitely[3] |
| Abrasiveness1–5 | Non-abrasive when unfilled[7] | Non-abrasive[3] |
| Nozzle clog risk1–5 | High — jams from moisture, heat creep or particles[9] | 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[8][10] |
| Moisture Behaviour | ||
| Moisture absorption (hygroscopicity)1–5 | High (0.8–2 %) — Prusa measures 0.46 % after 7 days at 22 % RH, but PA11 sits between PA12 and PA6 in the family[1][9] | Not documented |
| Equilibrium moisture content at ~50 % RH% | 0.26 after 24 h and 0.46 after 7 days (Prusa Polymers method)[1] | Not documented |
| Symptoms when wet | Popping and cracking during extrusion, then hard-to-diagnose defects[11] | Not documented |
| Effect of moisture on strength | Prusa publishes no dry-versus-conditioned columns; the CoPA reference shows the PA-family response — stiffness and strength fall sharply, impact and elongation rise[11][12] | 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[8][10] |
| Storage requirement | Sealed below 20 % RH with desiccant[9] | Not documented |
| Mechanical Properties | ||
| Tensile strength (XY)MPa | 38.3 ± 0.8 printed horizontal and 39.5 ± 0.5 printed vertical at yield, ISO 527-1[1] | Not documented |
| Young's modulusMPa | 1200 printed, both orientations, ISO 527-1[1] | Not documented |
| Elongation at break% | 5.6 ± 0.1 at yield, printed, ISO 527-1[1] | Not documented |
| Flexural modulusMPa | 1100 printed horizontal and 1000 printed vertical, ISO 178[1] | Not documented |
| Charpy impact, notchedkJ/m² | 12.9 ± 2.1 printed horizontal and 11.7 ± 1.2 printed vertical, ISO 179-1 notched[1] | Not documented |
| Layer adhesion / Z tensileMPa | 32 ± 1 (Prusa Polymers interlayer adhesion test) — the highest interlayer figure Prusa publishes for any of its filaments[1] | Not documented |
| Brittleness1–5 | Tough — absorbs impact, yields before breaking[1] | Not documented |
| Hardness (scale-specific)Shore A / Shore D / Rockwell | 70 Shore D (Prusa Polymers method)[1] | Not documented |
| Fatigue / repeated-flex resistance1–5 | Excellent — living hinges viable[7] | Not documented |
| Elasticity / flexibility1–5 | Semi-flexible[1] | Not documented |
| Z strength as % of XY% | 84 — Prusa publishes a tensile anisotropy coefficient of 0.84, the ratio of Z to XY tensile strength[1] | Not documented |
| Wear resistance & friction | Not documented | 3DXTech marks tensile strength, modulus and elongation as not applicable for its support grades — they are not characterised as structural materials[3] |
| Thermal Properties | ||
| HDT at 0.45 MPa°C | 58.7 (ISO 75, 0.45 MPa)[1] | Not documented |
| HDT at 1.8 MPa°C | 49.9 (ISO 75, 1.8 MPa)[1] | 205 (THERMAX HTS1, printed XY, ISO 75 at 1.8 MPa)[3] |
| Glass transition (Tg)°C | Not documented | 225 (3DXTech THERMAX HTS1, DSC) — high enough to stay solid inside a PEI or PEEK build[3] |
| Environment & Chemical | ||
| Water / humidity resistance in service1–5 | Absorbs water, properties shift[11] | Not documented |
| Biodegradability / compostability | Bio-based — the monomer comes from castor oil[2] | Not documented |
| Electrical & ESD properties | Not documented | Surface resistance above 10^13 ohm/sq on all three THERMAX support grades (ASTM D257) — insulating[3][13][4] |
| Health & Safety | ||
| Fume toxicity1–5 | Moderate — measurable VOCs and UFPs, ventilation advised[14] | Low hazard — minimal VOC and particle emission; none of these materials was in the chamber study[14] |
| VOC emission rateµg/min | Up to 180 caprolactam, the dominant VOC from nylon; total VOC reached nearly 200 µg/min, the highest of the nine filaments tested[14] | Not documented |
| Ultrafine-particle emission rateparticles/min | ≈2 × 10⁸ median — low for ultrafine particles despite the highest VOC mass of any filament tested[14] | Not documented |
| Hazardous species emitted | Caprolactam, at up to 180 µg/min from nylon filament — the largest single-VOC emission rate measured in the study[14] | Not documented |
| Ventilation / filtration requirement1–5 | Ventilated room or enclosure recommended[14] | Open a window / occasional ventilation[14] |
| Post-Processing | ||
| Support material pairing | Not documented | This is the support material. MTS1 is matched to PC/ABS and PC; HTS1 and HTS2 to the higher-temperature classes[4][3] |
| Solvents & Solubility | ||
| Soluble in | Dissolved at 23 °C by formic acid, phenol, m-cresol, 96 % sulphuric acid or hexafluoroisopropanol — all laboratory reagents.[15][16] | Aqueous alkali, not water: IEMAI specifies an alkaline bath in an ultrasonic cleaner until the support dissolves.[6] |
| Softened or crazed by | Mineral acids, oxidants, halogens and zinc chloride solutions attack the amide bond; ordinary solvents do not (BASF, PA6/66).[15] | Not documented |
| Solvent welding & smoothing agent | None — nylon's only solvents are formic acid, phenol and HFIP, all of which degrade the part they wet.[15] | None — the alkaline bath dissolves the support rather than welding anything.[6] |
Material entries describe families or representative grades, not an interchangeable specification for every spool. Test methods, orientations and conditions may differ. Unknown values are marked “Not documented”. Prices and source dates remain historical snapshots; check the linked guide for product details. Differences highlight text, not a universal winner.
Sources for this comparison
- Prusament PA11 Technical Datasheet v1.0 Prusa Polymers · 2026-07 · tds
- Prusament PA11 — material page Prusa Polymers · 2026-08 · doc
- THERMAX HTS1 Break Away Support Technical Data Sheet v1.0 3DXTech · 2026-08 · tds
- THERMAX MTS1 Break Away Support Technical Data Sheet v1.0 3DXTech · 2026-08 · tds
- 3DXTech product catalogue 3DXTech · 2026-08 · vendor
- IEMAI 3D HT-SP alkaline-soluble support filament — store page IEMAI 3D · 2026-08 · vendor
- PA (Nylon) — material basics Polymaker Wiki · 2026-08 · doc
- THERMAX HTS1 — product page 3DXTech · 2026-08 · vendor
- Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
- THERMAX MTS1 — product page 3DXTech · 2026-08 · vendor
- Moisture Conditioning — effect on printed nylon properties Polymaker Wiki · 2026-08 · doc
- PolyMide CoPA Technical Data Sheet V5.4 (dry and wet status blocks) Polymaker · 2024-11 · tds
- THERMAX HTS2 Break Away Support Technical Data Sheet v1.0 3DXTech · 2026-08 · tds
- Emissions of Ultrafine Particles and Volatile Organic Compounds from Commercially Available Desktop Three-Dimensional Printers with Multiple Filaments (Azimi et al.) Environmental Science & Technology 50(3) 1260-1268 · 2016-01 · paper
- Ultramid Nylon Chemical Resistance guide (unmodified PA6 B27E and PA66 A27E) BASF · 2026-08 · tds
- Chemical resistance — resistance of Ensinger plastics to chemicals (DIN 50 014, 23/50) Ensinger · 2026-08 · tds