Filament comparison
PA11 vs PPS
Compare printing settings, strength, heat resistance, dated prices and sources.
2 selected · all documented properties
| Property | PA11 (Nylon 11)PA | PPSHIGHTEMP |
|---|---|---|
| Market snapshot | ||
| Listing priceUSD/kg; dated snapshots | $194.98/kg median; $194.98–$194.98/kg across 1 dated product listings | $116.97/kg median; $84.00–$200.00/kg across 3 dated product listings |
| Identity & Market | ||
| Base polymer / chemistry | Polyamide 11, polymerised from castor-oil-derived aminoundecanoic acid — a bio-based nylon[1][2] | Polyphenylene sulfide — a semi-crystalline high-temperature polymer[3][4] |
| Densityg/cm³ | 1.02 (ISO 1183)[1] | 1.28 (ISO 1183, 3DXTech) and 1.33 (ISO 1183, Spectrum PPS AM230)[3][5] |
| Typical priceUSD/kg | Not documented | 1 kg-equivalent spools span 84–200; the middle of the market is about 117[6][7][8] |
| Price range across brandsUSD/kg | Not documented | 84-200 across brands and diameters; IEMAI 3D 84 at 1 kg, Spectrum PPS AM230 117 at 750 g, 3DXTech ThermaX PPS 140 at 2.85 mm and 200 at 1.75 mm[6][7][8] |
| Market availability1–5 | Niche, a handful of specialist brands[2] | Niche, a handful of specialist brands[6][7] |
| Spool sizes & diameters | 1.75 mm; 1 kg spools[2] | 1.75 and 2.85 mm; 500 g and 750 g spools[6][7] |
| Typical applications | Tough, chemically resistant functional parts; Prusa targets it at impact-loaded and vibration-loaded components[2] | Chemical-plant and under-bonnet parts needing solvent resistance above 200 °C[4] |
| Diameter tolerance± mm | ±0.02 (Prusament)[1] | Not documented |
| Printing Parameters | ||
| Nozzle temperature°C | 275 ± 10 (Prusament)[1] | 335-345 (3DXTech printed-specimen conditions); 300-330 (Spectrum)[3][5] |
| Bed temperature°C | 100 ± 10 (Prusament)[1] | 110-130 (3DXTech); 100-120 (Spectrum)[3][5] |
| Enclosure / chamber requirement1–5 | Enclosure required (passive) — Prusament specifies a 55 ± 5 °C chamber[1] | Actively heated chamber required[9][10] |
| Recommended chamber temperature°C | 55 ± 5 (Prusament)[1] | 60-80 actively heated (Spectrum PPS AM230)[5] |
| Bed surface & adhesion aid | PA nylon sheet (Prusament)[1] | Adhesive required — Spectrum specifies Magigoo Pro HT[5] |
| Overall printing difficulty1–5 | Advanced — enclosure, hardware upgrades, tuning[1][11] | Expert / industrial hardware only[9][10] |
| Extruder requirement | Prusa printed its test specimens with a high-flow CHT nozzle[1] | Not documented |
| Hardware Wear & Reliability | ||
| Nozzle hardness required1–4 | Brass fine indefinitely for unfilled grades[11] | Brass fine indefinitely for unfilled grades, but brass softens near these nozzle temperatures — hardened or plated hot ends are the norm[9] |
| Abrasiveness1–5 | Non-abrasive when unfilled[11] | Non-abrasive when unfilled[3] |
| Nozzle clog risk1–5 | High — jams from moisture, heat creep or particles[12] | Moderate — needs dry filament and a clean nozzle; 3DXTech lists no special nozzle concerns but a mandatory 110 °C pre-dry before every print[13] |
| 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][12] | Negligible (<0.1 % EMC) — Polymaker states minimal water absorption at 0.05 %[4] |
| Equilibrium moisture content at ~50 % RH% | 0.26 after 24 h and 0.46 after 7 days (Prusa Polymers method)[1] | 0.01 in 24 h on extruded stock (ASTM D570) — effectively non-absorbing[14] |
| Drying temperature & time | Not documented | At least 3 h at 90 °C in hot dry air if the filament has taken up moisture (Spectrum)[5] |
| Symptoms when wet | Popping and cracking during extrusion, then hard-to-diagnose defects[15] | 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[15][16] | Little to measure — equilibrium uptake is 0.05 %; 3DXTech still specifies a 110 °C, 4 h pre-dry before printing[4][13] |
| Storage requirement | Sealed below 20 % RH with desiccant[12] | 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] | 50 at break (printed XY, ISO 527, 3DXTech); 65 at break injection-moulded (ISO 527, Spectrum); 94 at yield on extruded stock (ASTM D638)[3][5][14] |
| Young's modulusMPa | 1200 printed, both orientations, ISO 527-1[1] | 2650 (printed XY, ISO 527, 3DXTech); 3650 injection-moulded (ISO 527, Spectrum); 5769 on extruded stock (ASTM D638)[3][5][14] |
| Elongation at break% | 5.6 ± 0.1 at yield, printed, ISO 527-1[1] | 18 at break (printed XY, ISO 527, 3DXTech) against 2.0 injection-moulded (Spectrum) and 2.5 on extruded stock — the suppliers disagree by nearly an order of magnitude[3][5][14] |
| Flexural strengthMPa | Not documented | 52 (printed XY, ISO 178, 3DXTech); 141 on extruded stock (ASTM D790)[3][14] |
| Flexural modulusMPa | 1100 printed horizontal and 1000 printed vertical, ISO 178[1] | 2540 (printed XY, ISO 178)[3] |
| Charpy impact, notchedkJ/m² | 12.9 ± 2.1 printed horizontal and 11.7 ± 1.2 printed vertical, ISO 179-1 notched[1] | 1.3 notched injection-moulded (ISO 179-1eA, Spectrum); unnotched 18[5] |
| Other impact data | Not documented | Izod notched 33 J/m on extruded PPS stock, converted from 0.62 ft-lb/in (ASTM D256)[14] |
| 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] | Moderate[3] |
| Hardness (scale-specific)Shore A / Shore D / Rockwell | 70 Shore D (Prusa Polymers method)[1] | Rockwell 105 (and R124) on extruded PPS stock (ASTM D785)[14] |
| Creep resistance / sustained load1–5 | Not documented | Excellent — holds load for years. Ensinger lists high creep resistance as a headline property of extruded PPS stock, and Spectrum states that rigidity, strength and creep resistance are unchanged under continuous load at high temperature[14][5] |
| Fatigue / repeated-flex resistance1–5 | Excellent — living hinges viable[11] | Not documented |
| Elasticity / flexibility1–5 | Semi-flexible[1] | Rigid[3] |
| 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 |
| Thermal Properties | ||
| HDT at 0.45 MPa°C | 58.7 (ISO 75, 0.45 MPa)[1] | 90 (printed XY, ISO 75 at 0.45 MPa, 3DXTech); 129 injection-moulded (ISO 75, Spectrum); 204 on extruded stock (ASTM D648 at 66 psi)[3][5][14] |
| HDT at 1.8 MPa°C | 49.9 (ISO 75, 1.8 MPa)[1] | 107 injection-moulded (ISO 75 at 1.81 MPa, Spectrum); 104 on extruded stock (ASTM D648 at 264 psi)[5][14] |
| Melting point / Vicat°C | Not documented | 283 melting (ISO 11357, 3DXTech) and 280 on extruded stock; Vicat softening 236 at 50 N injection-moulded (ISO 306, Spectrum)[3][5][14] |
| Continuous service temperature°C | Not documented | 170 long-term service on extruded PPS stock, converted from 338 °F[14] |
| Thermal expansion (CTE)µm/m·K | Not documented | 59.4 (extruded PPS stock, 22-60 °C, ASTM D696; source states 3.3e-5 in/in/°F)[14] |
| Flammability / UL 94 | Not documented | UL 94 V-0 at 1.5 mm, rated on the base resin[3] |
| Environment & Chemical | ||
| Chemical resistance | Not documented | Outstanding — PPS resists essentially all solvents below 200 °C[4] |
| Water / humidity resistance in service1–5 | Absorbs water, properties shift[15] | Excellent — essentially unaffected; extruded stock takes up 0.01 % water in 24 h[14] |
| Biodegradability / compostability | Bio-based — the monomer comes from castor oil[2] | Not documented |
| Health & Safety | ||
| Fume toxicity1–5 | Moderate — measurable VOCs and UFPs, ventilation advised[17] | Moderate — measurable VOCs and UFPs, ventilation advised. None of these polymers was in the chamber study, and all are processed far above the temperatures it covered[17] |
| 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[17] | Not documented |
| Ultrafine-particle emission rateparticles/min | ≈2 × 10⁸ median — low for ultrafine particles despite the highest VOC mass of any filament tested[17] | 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[17] | Not documented |
| Ventilation / filtration requirement1–5 | Ventilated room or enclosure recommended[17] | Ventilated room or enclosure recommended[17] |
| Solvents & Solubility | ||
| Soluble in | Dissolved at 23 °C by formic acid, phenol, m-cresol, 96 % sulphuric acid or hexafluoroisopropanol — all laboratory reagents.[18][19] | None — PPS does not dissolve in any known solvent below 200 °C.[20][19] |
| Softened or crazed by | Mineral acids, oxidants, halogens and zinc chloride solutions attack the amide bond; ordinary solvents do not (BASF, PA6/66).[18] | Nothing at 23 °C; Ensinger rates it only conditionally resistant to benzene, dichloromethane, toluene and pyridine.[19] |
| Solvent welding & smoothing agent | None — nylon's only solvents are formic acid, phenol and HFIP, all of which degrade the part they wet.[18] | None — no solvent welds or smooths PPS.[20] |
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 PPS Technical Data Sheet v3 3DXTech · 2026-08 · tds
- PPS — material basics Polymaker Wiki · 2026-08 · doc
- Spectrum PPS AM230 Technical Data Sheet Spectrum Filaments · 2022-04 · tds
- 3DXTech product catalogue 3DXTech · 2026-08 · vendor
- Spectrum PPS AM230 Natural, 1.75 mm / 750 g 3DJAKE · 2026-08 · vendor
- IEMAI 3D PPS 3D Printing Filament — store page IEMAI 3D · 2026-08 · vendor
- Prusament PEI 1010 Technical Datasheet v1.0 Prusa Polymers · 2024-09 · tds
- Prusament PEI 1010 — material page Prusa Polymers · 2026-08 · doc
- PA (Nylon) — material basics Polymaker Wiki · 2026-08 · doc
- Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
- THERMAX PPS — product page (print recommendations) 3DXTech · 2026-08 · doc
- TECATRON natural (PPS) — stock shape properties Ensinger · 2026-08 · tds
- 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
- 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
- PPS (Polyphenylene sulfide) — Knowledge Base Prusa Research · 2026-08 · doc