3D Printing Info

Filament comparison

PETG-ESD vs PPSU

Compare printing settings, strength, heat resistance, dated prices and sources.

ESD-safe PETG guidePPSU guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PETG-ESD comparisonsMore PPSU comparisons
PETG-ESD vs PPSU — documented properties and sources
PropertyESD-safe PETGPETGPPSUHIGHTEMP
Market snapshot
Listing priceUSD/kg; dated snapshots$102.99/kg median; $65.98–$140.00/kg across 2 dated product listings$337.40/kg median; $223.00–$732.56/kg across 4 dated product listings
Identity & Market
Base polymer / chemistryPETG compounded with a conductive filler to bring surface resistivity into the static-dissipative range[1][2]Polyphenylsulfone — an amorphous high-temperature sulfone polymer[3]
Densityg/cm³1.24 (Fiberon) and 1.28 (3DXTech), ISO 1183[1][2]1.28 (ISO 1183, 3DXTech; ASTM D792, Stratasys PPSF)[3][4]
Typical priceUSD/kg1 kg-equivalent spools span 66–140; the middle of the market is about 103[5][6]1 kg-equivalent spools span 223–733; the middle of the market is about 425[6][7][8][9]
Price range across brandsUSD/kg66–140 across brands; Fiberon PETG-ESD 66, 3DXSTAT ESD-PETG 140[5][6]223-733 across brands; IEMAI 3D 223 at 1 kg, 3DXTech ThermaX PPSU 250 at 500 g, 3D4Makers 425 at 750 g, Kimya PPSU-S 733 at 500 g[6][7][8][9]
Market availability1–5Niche, a handful of specialist brands[5][6]Niche, a handful of specialist brands[6][7][8]
Spool sizes & diameters1.75 mm; 0.5, 0.75, 1 and 3 kg spools[5][6]1.75 and 2.85 mm; 200 g to 750 g spools[6][7][8]
Typical applicationsElectronics fixtures, trays and jigs handled around static-sensitive components[1][2]Steam-sterilisable medical and dental tooling, and aircraft interior parts[3]
Printing Parameters
Nozzle temperature°C250–290 (Fiberon)[1]Not documented
Bed temperature°C70–80 (Fiberon); 70 (3DXTech)[1][2]130–150 (3DXTech)[3]
Enclosure / chamber requirement1–5Open frame is fine — Fiberon specifies room-temperature chamber[1]Actively heated chamber required[10][11]
Bed surface & adhesion aidTextured PEI, satin or powder-coated sheets; on smooth PEI a glue stick acts as a release agent[12][13]Not documented
Maximum volumetric flow (mm³/s; see test conditions)mm³/sFiberon rates the material to 500 mm/s, equivalent to 40 on a 0.4 mm nozzle at 0.2 mm layer — a machine-limited headline rather than a measured melt rate[1][14]Not documented
Warping tendency1–5Not documentedSevere — heated chamber needed[10]
Bed-adhesion difficulty1–5Needs the right surface or a thin adhesive — the problem is releasing the part, not sticking it[12][13]Not documented
Stringing / oozing tendency1–5Moderate — retraction tuning needed; Polymaker names stringing as PETG's common quirk[13]Not documented
Overall printing difficulty1–5Intermediate — dry filament and a tuned profile; resistivity depends on getting the nozzle temperature right[1]Expert / industrial hardware only[10][11]
Hardware Wear & Reliability
Nozzle hardness required1–4Hardened steel required[1]Brass fine indefinitely for unfilled grades, but brass softens near these nozzle temperatures — hardened or plated hot ends are the norm[10]
Abrasiveness1–5Moderately abrasive — conductive carbon filler[1]Non-abrasive when unfilled[3]
Nozzle clog risk1–5Low — 3DXTech lists no special nozzle concerns and no minimum layer height for its ESD-PETG, only a 65 °C pre-dry[15]Moderate — needs dry filament and a clean nozzle; 3DXTech lists no special nozzle concerns but a mandatory 120 °C pre-dry before every print[16]
Heat-creep / jam sensitivity1–5Slightly sensitive[17]Not documented
Hotend requirementNo special hot-end required[17]Not documented
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Moderate (0.3–0.8 %) — the PETG matrix reaches 0.40 % saturated at 25 °C / 55 % RH and 3DXTech specifies a 65 °C, 4 h pre-dry[12][15]Not documented
Equilibrium moisture content at ~50 % RH%0.41 equilibrium water absorption (Fiberon PETG-ESD)[1]0.37 in 24 h and 1.1 at saturation on extruded stock (ASTM D570)[18]
Drying temperature & time65 °C for 3 h (Fiberon)[1]Not documented
Symptoms when wetBubbling and popping at the nozzle, stringing and a rough surface[19]Not documented
Effect of moisture on strengthPolymaker groups PETG with nylon, PVA and TPU as highly hygroscopic; no dry-versus-conditioned strength figures are published for this grade and the loss shows as bubbling and poor layer adhesion[19]No dry-versus-conditioned figures are published; 3DXTech mandates a 120 °C, 4 h pre-dry before every print because trapped water flashes to steam at these nozzle temperatures[16]
Storage requirementSealed with desiccant; Polymaker groups PETG with the highly hygroscopic materials[19][13]Not documented
Mechanical Properties
Tensile strength (XY)MPa36.1 ± 0.9 printed XY, ISO 527 (Fiberon); 3DXTech quotes 50 at break[1][2]55 (printed XY, ISO 527, 3DXTech) and 55 (printed on side long edge, ASTM D638, Stratasys PPSF); 79 at yield on extruded stock[3][4][18]
Young's modulusMPa1983 ± 75 printed XY, ISO 527 (Fiberon)[1]2100 (printed, ASTM D638, Stratasys PPSF) and 2310 (printed XY, ISO 527, 3DXTech); 2344 on extruded stock[3][4][18]
Elongation at break%7.3 ± 0.7 printed XY, ISO 527 (Fiberon); 3DXTech quotes 13 at break[1][2]3 (printed, ISO 527 and ASTM D638) against 60 on extruded stock — printing costs PPSU almost all of its ductility[3][4][18]
Flexural strengthMPa54.0 ± 2.5 printed XY, ISO 178 (Fiberon)[1]110 (printed, ISO 178 and ASTM D790, 3DXTech and Stratasys PPSF agree); 91 on extruded stock[3][4][18]
Flexural modulusMPa1651 ± 141 printed XY, ISO 178 (Fiberon)[1]2200 (printed, ASTM D790, Stratasys PPSF) and 2215 (printed XY, ISO 178, 3DXTech)[3][4]
Charpy impact, notchedkJ/m²5.7 ± 0.5 printed XY, ISO 179, notched (Fiberon)[1]Not documented
Other impact dataCharpy unnotched 29.3 ± 2.2 printed XY (Fiberon, ISO 179)[1]Izod notched 58.7 J/m and unnotched 165.5 J/m (printed, ASTM D256 Method A, Stratasys PPSF); 160 J/m notched on extruded stock[4][18]
Layer adhesion / Z tensileMPa20.7 ± 0.6 printed Z, ISO 527 (Fiberon)[1]Not documented
Brittleness1–5Moderate[1]Brittle — snaps with little warning[3]
Hardness (scale-specific)Shore A / Shore D / RockwellNot documentedRockwell M86 on printed PPSF (ASTM D785, Stratasys); M96 on extruded PPSU stock (and an unlabelled 123)[4][18]
Creep resistance / sustained load1–5Below average — no ESD-grade creep test; unfilled PETG sagged from 12 to 17.1–20.4 mm over 5 days at 1.25 kg[20][21][22][23]Good. Printed PPSF holds 189 °C heat deflection at 1.8 MPa (ASTM D648) and extruded stock is rated 149 °C long-term service, but Ensinger does not claim the creep resistance it claims for PSU and PPS[4][18]
Fatigue / repeated-flex resistance1–5Moderate — no ESD-grade S-N curve; unfilled printed PETG ran 79 000–193 000 cycles at 30 % of tensile strength[24]Not documented
Elasticity / flexibility1–5Slightly flexible in thin sections[1]Rigid[3]
Z strength as % of XY%57 (Fiberon, printed Z against XY tensile)[1]Not documented
Thermal Properties
HDT at 0.45 MPa°C76 (ISO 75, 0.45 MPa, Fiberon)[1]190 (printed XY, ISO 75 at 0.45 MPa, 3DXTech)[3]
HDT at 1.8 MPa°C72 (ISO 75, 1.8 MPa, Fiberon)[1]189 (printed, ASTM D648 at 264 psi, Stratasys PPSF); 207 on extruded stock, converted from 405 °F[4][18]
Glass transition (Tg)°C77 (Fiberon) and 80 (3DXTech), DSC[1][2]230 (DSC) — the highest glass transition in the dataset[3]
Melting point / Vicat°CAmorphous — no melting point; Vicat 86 (Fiberon, ISO 306)[1]Not documented
Continuous service temperature°CNot documented149 long-term service on extruded PPSU stock, converted from 300 °F[18]
Thermal expansion (CTE)µm/m·KNot documented55.0 (printed PPSF, ASTM D696; source states 5.5e-5 mm/mm/°C) and 55.8 on extruded stock (ASTM D696, from 3.1e-5 in/in/°F)[4][18]
Flammability / UL 94Flammable; no UL 94 rating published for standard grades[25]UL 94 V-0 at 1.5 mm, rated on the base resin[3]
Environment & Chemical
Chemical resistanceWithstands acids, alkalis, oils and UV exposure[13]Withstands repeated steam autoclaving, the usual reason to choose PPSU over PSU; Stratasys also lists PPSF as passing 24 h stress-crack exposure to antifreeze, petrol, motor oil, power-steering, transmission and washer fluid at 23 °C and 100 °C[3][4]
Food contactNot certified for food contact as filament[13]Not documented
Biodegradability / compostabilityNot biodegradable[13]Not documented
RecyclabilityNot accepted in household plastic collection[13]Not documented
Electrical & ESD propertiesSurface resistivity falls with nozzle temperature: 7.0×10⁶–1.6×10⁷ ohm at 250 °C, 3.2×10⁵–4.7×10⁵ at 270 °C and below 1×10⁴ at 290 °C (Fiberon); 3DXTech quotes 10⁷–10⁹ ohm/sq[1][2]Volume resistivity 5e13 to 1.5e14 ohm-cm and dielectric strength 80-290 V/mil on printed PPSF (ASTM D257, D149)[4]
Health & Safety
Fume toxicity1–5Moderate — measurable VOCs and UFPs, ventilation advised[26]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[26]
Ventilation / filtration requirement1–5Open a window / occasional ventilation[26]Ventilated room or enclosure recommended[26]
Dust & fibre handling hazardConductive carbon filler is bound in the matrix; avoid inhaling sanding dust[1]Not documented
Post-Processing
Sanding & machiningSands poorly — the material is tough and gums rather than powders[17]Not documented
Gluing & solvent weldingCyanoacrylate; no common solvent welds PETG cleanly[17]Not documented
Vapour / chemical smoothingNo practical vapour smoothing[17]Not documented
Support material pairingPrints its own supports; Polymaker rates PolyDissolve S1 for PETG[17]Not documented
Dimensional accuracy & detailNozzle temperature has to be held steady — it moves surface resistivity by three orders of magnitude[1]Not documented
Solvents & Solubility
Soluble inNo common workshop solvent; 1,2-dichloroethane destroys it inside a week and dichloromethane — a carcinogen — dissolves the surface.[27][28]Dichloromethane dissolves it at 23 °C at every stress level; acetone solvates and softens unstressed PPSU (Solvay ESCR).[29]
Softened or crazed byAcetone (+16 % weight over 1 year at 23 °C), ethyl acetate, toluene and DMF swell and soften it; methanol crazes it.[27]MEK ruptures stressed parts and toluene crazes them above 13.8 MPa; glass-filled grades survive where unfilled craze.[29]
Solvent welding & smoothing agentDichloromethane brushed on is the only agent that smooths PETG — a controlled carcinogen, not workshop stock.[28]Dichloromethane cements PPSU and NMP softens residual resin; both are laboratory reagents, not workshop stock.[29]

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

  1. Fiberon PETG-ESD Technical Data Sheet V1.1 Polymaker · 2026-08 · tds
  2. 3DXSTAT ESD-PETG Technical Data Sheet 3DXTech · 2026-08 · tds
  3. ThermaX PPSU Technical Data Sheet v3 3DXTech · 2026-08 · tds
  4. PPSF (polyphenylsulfone) — FDM Data Sheet Stratasys · 2018-06 · tds
  5. Polymaker product catalogue Polymaker · 2026-08 · vendor
  6. 3DXTech product catalogue 3DXTech · 2026-08 · vendor
  7. Kimya PPSU-S Natural 1.75 mm 500 g igo3d · 2026-08 · vendor
  8. 3D4Makers product catalogue 3D4Makers · 2026-08 · vendor
  9. IEMAI 3D PPSU 3D Printing Filament — store page IEMAI 3D · 2026-08 · vendor
  10. Prusament PEI 1010 Technical Datasheet v1.0 Prusa Polymers · 2024-09 · tds
  11. Prusament PEI 1010 — material page Prusa Polymers · 2026-08 · doc
  12. Prusament PETG Technical Datasheet v1.1 Prusa Polymers · 2022-02 · tds
  13. PETG — material basics Polymaker Wiki · 2026-08 · doc
  14. Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
  15. 3DXSTAT ESD-PETG — product page (print recommendations) 3DXTech · 2026-08 · doc
  16. THERMAX PPSU — product page (print recommendations) 3DXTech · 2026-08 · doc
  17. PET and PETG — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  18. TECASON P black (PPSU) — stock shape properties Ensinger · 2026-08 · tds
  19. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  20. PCTG vs PETG comparison — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  21. Extrudr PETG vs PCTG vs XPETG-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  22. Prusament PETG-CF vs PETG V0 vs PETG — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  23. BambuLab PETG Basic vs Translucent vs PETG-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  24. Mechanical Properties of Additively Manufactured Polymeric Materials — PLA and PETG — For Biomechanical Applications Polymers 16(13):1868 · 2024-06 · paper
  25. Prusament PETG V0 Technical Datasheet Prusa Polymers · 2026-08 · tds
  26. 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
  27. Eastman Spectar copolyester — Chemical resistance (unstressed bars, 1 year at 23 °C) Eastman Chemical Company · 2026-08 · tds
  28. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc
  29. Radel PPSU, Veradel PESU, Acudel modified PPSU Design Guide — environmental stress cracking tables Solvay Specialty Polymers · 2026-08 · tds