Filament comparison
PPS-CF vs TPU-CF
Compare printing settings, strength, heat resistance, dated prices and sources.
2 selected · all documented properties
| Property | Fibre-reinforced PPSHIGHTEMP | Carbon-fibre TPUFLEX |
|---|---|---|
| Market snapshot | ||
| Listing priceUSD/kg; dated snapshots | $139.98/kg median; $119.98–$174.17/kg across 5 dated product listings | $107.05/kg median; $107.05–$107.05/kg across 1 dated product listings |
| Identity & Market | ||
| Base polymer / chemistry | Carbon-fibre reinforced PPS — Polymaker's Fiberon grade is nominally 10 wt%[1] | Carbon-fibre reinforced thermoplastic polyurethane at the hard end of the range[2] |
| Densityg/cm³ | 1.29 (Fiberon PPS-CF10) and 1.36 (Fiberon PPS-GF20), ISO 1183[1][3] | 1.22 (Extrudr FLEX HARD CF, ISO 2781)[2] |
| Typical priceUSD/kg | 1 kg-equivalent spools span 93–174; the middle of the market is about 140[4][5][6][7] | 107 for the only retail listing found (Extrudr 0.5 kg coil, incl. VAT)[8] |
| Price range across brandsUSD/kg | 93-174 across brands and formats; Polymaker Fiberon PPS-GF20 93 at 3 kg, IEMAI 3D CF-PPS 131 at 750 g, LEHVOSS Luvocom 3F PPS CF 9938 164 at 2.3 kg, Bambu Lab PPS-CF 174 at 750 g[4][5][6][7] | One listing only: EUR 49.56 incl. VAT per 0.5 kg coil, direct from Extrudr; no reseller or second brand found[8] |
| Market availability1–5 | Available from several mainstream brands[4][5][6] | Niche, a handful of specialist brands — Extrudr's FLEX HARD CF is the only carbon-filled flexible with a published datasheet found here[2] |
| Spool sizes & diameters | 1.75 mm; 0.5 kg spools[4] | 1.75 mm; 0.5 and 2 kg coils[8] |
| Typical applications | Chemical and automotive parts needing PPS chemistry with structural stiffness[1] | Stiffened flexible parts — damping mounts and semi-rigid brackets[2] |
| Printing Parameters | ||
| Nozzle temperature°C | Not documented | 230–260 (Extrudr FLEX HARD CF)[2] |
| Bed temperature°C | Not documented | 50–90 (Extrudr FLEX HARD CF)[2] |
| Enclosure / chamber requirement1–5 | Enclosure required (passive) — Polymaker states its Fiberon PPS-CF10 needs no heated chamber, unlike the unfilled sulfones and PAEKs[1] | Open frame is fine[2] |
| Bed surface & adhesion aid | Not documented | PEI sheet or painter's tape; Polymaker warns TPU can over-stick and advises a glue stick as a release agent[9][10] |
| Maximum volumetric flow (mm³/s; see test conditions)mm³/s | Not documented | 1.6–8 at the 20–100 mm/s Extrudr specifies on a 0.4 mm nozzle at 0.2 mm layer[2] |
| Overall printing difficulty1–5 | Expert / industrial hardware only[1] | Advanced — enclosure, hardware upgrades, tuning; hardened nozzle needed[2] |
| Hardware Wear & Reliability | ||
| Nozzle hardness required1–4 | Hardened steel required[1] | Hardened steel required — Extrudr marks FLEX HARD CF as needing a hardened nozzle where its unfilled FLEX grades do not[2] |
| Abrasiveness1–5 | Highly abrasive — standard CF composite[1] | Highly abrasive — standard CF composite[2] |
| Nozzle clog risk1–5 | High — jams from moisture, heat creep or particles; Polymaker specifies hardened steel or ruby nozzles for carbon-filled PPS and Prusa lists composites as a higher clogging risk[11][12] | High — jams from moisture, heat creep or particles; a flexible base plus chopped carbon fibre, which Prusa lists as a higher nozzle-clogging risk, and Extrudr requires a hardened nozzle[12][2][9] |
| Hotend requirement | Not documented | No special hot-end required, but a direct-drive extruder is (Simplify3D)[9] |
| Moisture Behaviour | ||
| Moisture absorption (hygroscopicity)1–5 | Low (0.1–0.3 %) — 0.225 % equilibrium for Fiberon PPS-CF10 and 0.11 % for PPS-GF20[1][3] | Moderate[13] |
| Equilibrium moisture content at ~50 % RH% | 0.225 equilibrium (Fiberon PPS-CF10); 0.11 (PPS-GF20)[1][3] | Not documented |
| Drying temperature & time | Not documented | 60 °C for 6 h (Extrudr FLEX HARD CF)[2] |
| Symptoms when wet | Not documented | Bubbling and popping at the nozzle, stringing and a rough surface[13] |
| Effect of moisture on strength | No dry-versus-conditioned figures are published; equilibrium uptake is 0.225 % and Polymaker specifies a 100 °C, 10 h dry[1] | Polymaker groups TPU with the highly hygroscopic materials; no dry-versus-conditioned figures are published[13] |
| Storage requirement | Not documented | Sealed with desiccant; often kept in a dryer during the print[13] |
| Mechanical Properties | ||
| Tensile strength (XY)MPa | 59.4 ± 1.3 (PPS-CF10) and 64.1 ± 2.1 (PPS-GF20) printed XY, ISO 527[1][3] | Not documented |
| Young's modulusMPa | 5446.7 ± 149.0 (PPS-CF10) and 4552.0 ± 54.6 (PPS-GF20) printed XY, ISO 527[1][3] | 35 (Extrudr FLEX HARD CF, ISO 527-2/5A/500)[2] |
| Elongation at break% | 1.4 ± 0.1 (PPS-CF10) and 2.0 ± 0.2 (PPS-GF20) printed XY, ISO 527 — the lowest elongation in the dataset[1][3] | 380 ultimate elongation (Extrudr FLEX HARD CF, ISO 527-2/5A/500), against 490 for the unfilled FLEX HARD[2] |
| Charpy impact, notchedkJ/m² | 5.3 ± 0.2 printed XY for PPS-CF10 and 7.3 ± 0.2 for PPS-GF20, ISO 179 notched[1][3] | Not documented |
| Layer adhesion / Z tensileMPa | 32.0 ± 5.1 (PPS-CF10) and 22.9 ± 0.8 (PPS-GF20) printed Z, ISO 527[1][3] | Not documented |
| Brittleness1–5 | Very brittle — cracks or shatters easily; elongation at break 1.4 %[1] | Very ductile — bends far before failing[2] |
| Hardness (scale-specific)Shore A / Shore D / Rockwell | Rockwell 105 (and R124) on extruded unfilled PPS stock (ASTM D785); no figure is published for a fibre-filled PPS filament[14] | 70 Shore D (Extrudr FLEX HARD CF, ISO 868), against 58 Shore D for the unfilled FLEX HARD[2] |
| Creep resistance / sustained load1–5 | Excellent — holds load for years. Ensinger lists high creep resistance for unfilled PPS stock and Spectrum states creep resistance is unchanged under continuous load at high temperature; the fibre raises heat deflection to 252 °C at 0.45 MPa[14][15][1] | Below average — no CF-grade creep test; the grade is 70 Shore D where a 95A TPU bar crept from 74.5 to 82.7 mm over 5 days at 1.25 kg[2][16] |
| Fatigue / repeated-flex resistance1–5 | Not documented | Good — 380 % ultimate elongation and a damping application set (Extrudr cites longboard wheels), below the unfilled grades[2] |
| Elasticity / flexibility1–5 | Rigid[1] | Semi-flexible[2] |
| Z strength as % of XY% | 54 (PPS-CF10) and 36 (PPS-GF20), printed[1][3] | Not documented |
| Wear resistance & friction | Not documented | Abrasion 26 mm³ (Extrudr FLEX HARD CF, ISO 4649-A) — the same as the unfilled FLEX HARD[2] |
| Thermal Properties | ||
| HDT at 0.45 MPa°C | 252.5 (PPS-CF10) and 236.3 (PPS-GF20), printed, ISO 75 at 0.45 MPa[1][3] | Not documented |
| HDT at 1.8 MPa°C | 133 (PPS-CF10) and 125.8 (PPS-GF20), printed, ISO 75 at 1.8 MPa[1][3] | Not documented |
| Glass transition (Tg)°C | 97.7 (PPS-CF10) and 95.0 (PPS-GF20), DSC[1][3] | -24 (Extrudr FLEX HARD CF)[2] |
| Melting point / Vicat°C | 279.7 (PPS-CF10) and 279.6 (PPS-GF20) melting, DSC; Vicat 267.5 and 272.5 (ISO 306)[1][3] | Vicat A 140 (Extrudr FLEX HARD CF, ISO 306)[2] |
| Continuous service temperature°C | 170 long-term service on extruded PPS stock, converted from 338 °F; no figure published for the carbon-filled grade[14] | Not documented |
| Environment & Chemical | ||
| UV resistance1–5 | Not documented | Good — years with some colour shift; Polymaker lists UV exposure among the conditions TPU withstands[10] |
| Chemical resistance | Outstanding — PPS resists essentially all solvents below 200 °C[11] | Withstands industrial solvents and UV exposure (Polymaker)[10] |
| Food contact | Not documented | Not food safe without specific certification (Polymaker)[10] |
| Biodegradability / compostability | Not documented | Not biodegradable[10] |
| Recyclability | Not documented | Not accepted in household plastic collection[10] |
| Electrical & ESD properties | Surface resistivity above 10¹² ohm — insulating (ANSI/ESD S11.11)[1][3] | Not documented |
| Health & Safety | ||
| Fume toxicity1–5 | 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] | Low hazard — minimal VOC and particle emission; TPU was not among the nine filaments in the chamber study[17] |
| Ventilation / filtration requirement1–5 | Ventilated room or enclosure recommended[17] | Open a window / occasional ventilation[17] |
| Dust & fibre handling hazard | Fibre is bound in the matrix; sanding dust should not be inhaled[1] | Carbon fibre is bound in the matrix; sanding dust should not be inhaled[2] |
| Post-Processing | ||
| Sanding & machining | Not documented | Difficult to sand or smooth; Polymaker limits post-processing to trimming or tumbling[10] |
| Gluing & solvent welding | Not documented | Cyanoacrylate bonds TPU; no common solvent welds it[10] |
| Vapour / chemical smoothing | Not documented | No practical vapour smoothing[10] |
| Support material pairing | Not documented | Polymaker warns TPU supports are often very difficult to remove[10] |
| Dimensional accuracy & detail | Not documented | Tear strength 165 kN/m (Extrudr FLEX HARD CF, ISO 34-1B)[2] |
| Solvents & Solubility | ||
| Soluble in | None — PPS does not dissolve in any known solvent below 200 °C.[18][19] | DMF, DMSO, NMP and THF dissolve the TPU matrix and leave the fibre; ketones are partial solvents. Laboratory reagents.[20] |
| Softened or crazed by | Nothing at 23 °C; Ensinger rates it only conditionally resistant to benzene, dichloromethane, toluene and pyridine.[19] | Toluene and benzene swell it up to +50 % by weight at 23 °C; esters swell it severely; ethanol and IPA soften it.[20] |
| Solvent welding & smoothing agent | None — no solvent welds or smooths PPS.[18] | None practical — the true solvents (DMF, THF, NMP) are laboratory reagents and leave the joint swollen and weak.[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
- Fiberon PPS-CF10 Technical Data Sheet V1.1 Polymaker · 2025-07 · tds
- Extrudr Product Catalogue (DURAPRO PA12 data block) Extrudr · 2025-03 · tds
- Fiberon PPS-GF20 Technical Data Sheet V1.1 Polymaker · 2025-07 · tds
- Polymaker product catalogue Polymaker · 2026-08 · vendor
- Bambu Lab PPS-CF Black, spool (750 g) 3DJAKE · 2026-08 · vendor
- 3D4Makers product catalogue 3D4Makers · 2026-08 · vendor
- IEMAI 3D CF-PPS 3D Printing Filament — store page IEMAI 3D · 2026-08 · vendor
- Extrudr TPU FLEX Hard CF — product page (1.75 mm, 0.5 and 2 kg coils, price) Extrudr (FD3D GmbH) · 2026-08 · vendor
- Flexible (TPE/TPU) — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
- TPU — material basics Polymaker Wiki · 2026-08 · doc
- PPS — material basics Polymaker Wiki · 2026-08 · doc
- Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
- Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
- TECATRON natural (PPS) — stock shape properties Ensinger · 2026-08 · tds
- Spectrum PPS AM230 Technical Data Sheet Spectrum Filaments · 2022-04 · tds
- BambuLab TPU 95A HF vs Qidi TPU 95A HF — results spreadsheet My Tech Fun (Igor Gaspar) · 2024-02 · test
- 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
- PPS (Polyphenylene sulfide) — Knowledge Base Prusa Research · 2026-08 · doc
- Chemical resistance — resistance of Ensinger plastics to chemicals (DIN 50 014, 23/50) Ensinger · 2026-08 · tds
- Elastollan — Chemical properties: swelling and chemical resistance BASF · 2026-08 · tds