3D Printing Info

Filament comparison

PEI 1010 vs PETG-ESD

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

PEI (ULTEM 1010) guideESD-safe PETG guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PEI 1010 comparisonsMore PETG-ESD comparisons
PEI 1010 vs PETG-ESD — documented properties and sources
PropertyPEI (ULTEM 1010)HIGHTEMPESD-safe PETGPETG
Market snapshot
Listing priceUSD/kg; dated snapshots$281.22/kg median; $195.00–$698.00/kg across 6 dated product listings$102.99/kg median; $65.98–$140.00/kg across 2 dated product listings
Identity & Market
Base polymer / chemistryPolyetherimide, ULTEM 1010 grade — the higher-temperature, food- and medical-contact PEI[1][2]PETG compounded with a conductive filler to bring surface resistivity into the static-dissipative range[3][4]
Densityg/cm³1.27 (ISO 1183, 3DXTech and Prusament); 1.29 specific gravity on moulded plaques (ASTM D792, Stratasys)[1][2][5]1.24 (Fiberon) and 1.28 (3DXTech), ISO 1183[3][4]
Typical priceUSD/kg1 kg-equivalent spools span 195–698; the middle of the market is about 270[6][7][8][9][10]1 kg-equivalent spools span 66–140; the middle of the market is about 103[11][6]
Price range across brandsUSD/kg195-698 across brands and grades; 3DXTech ThermaX PEI 1010 195 at 2 kg, IEMAI 3D 223 at 1 kg, 3D4Makers 270 at 2 kg, Prusament 292 at 500 g, Kimya 347 at 500 g, 3DXTech ESD-PEI 1010 698 at 500 g[6][7][8][9][10]66–140 across brands; Fiberon PETG-ESD 66, 3DXSTAT ESD-PETG 140[11][6]
Market availability1–5Niche, a handful of specialist brands[6][7][8][9]Niche, a handful of specialist brands[11][6]
Spool sizes & diameters1.75 and 2.85 mm; 200 g to 2 kg spools, plus Stratasys canisters[6][9][5]1.75 mm; 0.5, 0.75, 1 and 3 kg spools[11][6]
Typical applicationsAutoclavable tooling, food-contact fixtures and parts that must hold load near 200 °C[2]Electronics fixtures, trays and jigs handled around static-sensitive components[3][4]
Printing Parameters
Nozzle temperature°C410 ± 10 (Prusament) — the hottest nozzle in the dataset[2]250–290 (Fiberon)[3]
Bed temperature°C140–160 (Prusament); 130–140 (3DXTech)[2][1]70–80 (Fiberon); 70 (3DXTech)[3][4]
Enclosure / chamber requirement1–5Actively heated chamber required — Prusa specifies 90 °C[2]Open frame is fine — Fiberon specifies room-temperature chamber[3]
Recommended chamber temperature°C90 (Prusament)[2]Not documented
Bed surface & adhesion aidPA nylon sheet or powder-coated sheet with high-temperature glue (Prusament)[2]Textured PEI, satin or powder-coated sheets; on smooth PEI a glue stick acts as a release agent[12][13]
Maximum volumetric flow (mm³/s; see test conditions)mm³/sNot documentedFiberon 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[3][14]
Warping tendency1–5Severe — heated chamber needed[2]Not documented
Bed-adhesion difficulty1–5Not documentedNeeds the right surface or a thin adhesive — the problem is releasing the part, not sticking it[12][13]
Stringing / oozing tendency1–5Not documentedModerate — retraction tuning needed; Polymaker names stringing as PETG's common quirk[13]
Overall printing difficulty1–5Expert / industrial hardware only[2][15]Intermediate — dry filament and a tuned profile; resistivity depends on getting the nozzle temperature right[3]
Extruder requirementA hot end rated to 420 °C, a heated chamber and a high-temperature bed; Prusa dries the filament at 150 °C for 6–8 h before printing[2]Not documented
Hardware Wear & Reliability
Nozzle hardness required1–4Brass fine indefinitely for unfilled grades, but brass softens near these nozzle temperatures — hardened or plated hot ends are the norm[2]Hardened steel required[3]
Abrasiveness1–5Non-abrasive when unfilled[1]Moderately abrasive — conductive carbon filler[3]
Nozzle clog risk1–5Moderate — needs dry filament and a clean nozzle; 3DXTech lists no special nozzle concerns but a mandatory 150 °C pre-dry before every print[16]Low — 3DXTech lists no special nozzle concerns and no minimum layer height for its ESD-PETG, only a 65 °C pre-dry[17]
Heat-creep / jam sensitivity1–5Not documentedSlightly sensitive[18]
Hotend requirementNot documentedNo special hot-end required[18]
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Not documentedModerate (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][17]
Equilibrium moisture content at ~50 % RH%0.4 in 24 h and 0.7 in 7 days at 24 °C and 22 % RH (Prusament)[2]0.41 equilibrium water absorption (Fiberon PETG-ESD)[3]
Drying temperature & time150 °C for 6–8 h (Prusament) — the hottest drying schedule in the dataset[2]65 °C for 3 h (Fiberon)[3]
Symptoms when wetNot documentedBubbling and popping at the nozzle, stringing and a rough surface[19]
Effect of moisture on strengthNo dry-versus-conditioned figures are published; 3DXTech mandates a 150 °C, 4 h pre-dry before every print because trapped water flashes to steam at these nozzle temperatures[16]Polymaker 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]
Storage requirementNot documentedSealed with desiccant; Polymaker groups PETG with the highly hygroscopic materials[19][13]
Mechanical Properties
Tensile strength (XY)MPa79-95 printed in plane: Stratasys 79.2 (F900 T14) to 91.6 (F3300 N500) at break in XZ, ASTM D638; Prusament 95 +/- 3.5 at yield printed horizontal, ISO 527-1; 3DXTech quotes 56 (ISO 527)[5][2][1]36.1 ± 0.9 printed XY, ISO 527 (Fiberon); 3DXTech quotes 50 at break[3][4]
Young's modulusMPa2300-3040 printed in plane: Prusament 2300 +/- 100 horizontal (ISO 527-1), Stratasys 2920-3040 in XZ (ASTM D638); 3DXTech quotes 2500[5][2][1]1983 ± 75 printed XY, ISO 527 (Fiberon)[3]
Elongation at break%4.0-4.1 at break in XZ (ASTM D638, Stratasys); Prusament gives 6.6 +/- 0.7 at yield printed horizontal (ISO 527-1); 3DXTech quotes 3[5][2][1]7.3 ± 0.7 printed XY, ISO 527 (Fiberon); 3DXTech quotes 13 at break[3][4]
Flexural strengthMPa128 at 5 % strain (F900 T14) and 144 at break (F3300) printed XZ, ASTM D790; Prusament 98 +/- 6.5 horizontal and 138 +/- 5.3 vertical (ISO 178); 3DXTech quotes 110[5][2][1]54.0 ± 2.5 printed XY, ISO 178 (Fiberon)[3]
Flexural modulusMPa2910-3260 printed XZ (ASTM D790, Stratasys); Prusament 2300 horizontal and 2700 vertical (ISO 178); 3DXTech quotes 2510[5][2][1]1651 ± 141 printed XY, ISO 178 (Fiberon)[3]
Charpy impact, notchedkJ/m²3.4 ± 0.9 printed horizontal and 3.6 ± 0.4 printed vertical, ISO 179-1 notched (Prusament)[2]5.7 ± 0.5 printed XY, ISO 179, notched (Fiberon)[3]
Other impact dataIzod notched 26.6-36.3 J/m XZ against 21.7-27.2 J/m ZX; unnotched 260-406 J/m XZ against 68-116 J/m ZX (printed, ASTM D256/D4812, Stratasys). Charpy unnotched 19.7 +/- 4.3 horizontal and 39 +/- 10 vertical (Prusament, ISO 179-1)[5][2]Charpy unnotched 29.3 ± 2.2 printed XY (Fiberon, ISO 179)[3]
Layer adhesion / Z tensileMPa28-37 at break (printed ZX, ASTM D638, Stratasys F900 and F3300) against 72 +/- 5 at yield printed vertical (ISO 527-1, Prusament on the Pro HT90 with a 0.6 mm nozzle and 90 °C chamber) — a fourfold spread driven by chamber temperature and bead size[5][2]20.7 ± 0.6 printed Z, ISO 527 (Fiberon)[3]
Brittleness1–5Brittle — snaps with little warning; notched Charpy only 3.4 kJ/m²[2]Moderate[3]
Hardness (scale-specific)Shore A / Shore D / RockwellShore D 83.5 (Prusa Polymers method); Rockwell M110 / R126 on extruded PEI stock (ASTM D785)[2][20]Not documented
Creep resistance / sustained load1–5Excellent — holds load for years. Printed coupons hold 215 °C heat deflection at 1.8 MPa (ASTM D648) and extruded PEI stock is rated 170 °C long-term service[5][20]Below average — no ESD-grade creep test; unfilled PETG sagged from 12 to 17.1–20.4 mm over 5 days at 1.25 kg[21][22][23][24]
Fatigue / repeated-flex resistance1–5Not documentedModerate — no ESD-grade S-N curve; unfilled printed PETG ran 79 000–193 000 cycles at 30 % of tensile strength[25]
Elasticity / flexibility1–5Rigid[2]Slightly flexible in thin sections[3]
Z strength as % of XY%36-40 (Stratasys ZX against XZ tensile at break, ASTM D638) against 76 (Prusament vertical against horizontal tensile yield, ISO 527-1)[5][2]57 (Fiberon, printed Z against XY tensile)[3]
Thermal Properties
HDT at 0.45 MPa°C207 (Prusament, ISO 75 at 0.45 MPa) to 217 (printed XY 216.9 and XZ 217.1, ASTM D648 Method B at 66 psi, Stratasys); 3DXTech quotes 208[2][5][1]76 (ISO 75, 0.45 MPa, Fiberon)[3]
HDT at 1.8 MPa°C194 (Prusament, ISO 75 at 1.8 MPa) to 215 (printed XY 215.1 and XZ 214.5, ASTM D648 Method B at 264 psi, Stratasys) — the highest heat deflection in the dataset[2][5]72 (ISO 75, 1.8 MPa, Fiberon)[3]
Glass transition (Tg)°C209 (moulded plaque, ASTM D7426 inflection point, Stratasys); 217 (DSC, 3DXTech)[5][1]77 (Fiberon) and 80 (3DXTech), DSC[3][4]
Melting point / Vicat°CNot documentedAmorphous — no melting point; Vicat 86 (Fiberon, ISO 306)[3]
Continuous service temperature°C170 long-term service on extruded PEI stock, converted from 338 °F; 200 short term[20]Not documented
Thermal expansion (CTE)µm/m·K36.1 (printed XY, -50 to 60 °C, ASTM E831), falling to 29.8 over 60-205 °C; ZX gives 32.5 over -50 to 110 °C and 16.2 over 110-165 °C[5]Not documented
Flammability / UL 94UL 94 V-0 at 1.5 mm, rated on the base resin[1]Flammable; no UL 94 rating published for standard grades[26]
Environment & Chemical
Chemical resistanceNot documentedWithstands acids, alkalis, oils and UV exposure[13]
Food contactNot documentedNot certified for food contact as filament[13]
Biodegradability / compostabilityNot documentedNot biodegradable[13]
RecyclabilityNot documentedNot accepted in household plastic collection[13]
Electrical & ESD propertiesNot documentedSurface 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[3][4]
Health & Safety
Fume toxicity1–5Moderate — 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[27]Moderate — measurable VOCs and UFPs, ventilation advised[27]
Ventilation / filtration requirement1–5Ventilated room or enclosure recommended[27]Open a window / occasional ventilation[27]
Dust & fibre handling hazardNot documentedConductive carbon filler is bound in the matrix; avoid inhaling sanding dust[3]
Post-Processing
Sanding & machiningNot documentedSands poorly — the material is tough and gums rather than powders[18]
Gluing & solvent weldingNot documentedCyanoacrylate; no common solvent welds PETG cleanly[18]
Vapour / chemical smoothingNot documentedNo practical vapour smoothing[18]
Support material pairingNot documentedPrints its own supports; Polymaker rates PolyDissolve S1 for PETG[18]
Dimensional accuracy & detailNot documentedNozzle temperature has to be held steady — it moves surface resistivity by three orders of magnitude[3]
Solvents & Solubility
Soluble inChlorinated hydrocarbons — dichloromethane and chloroform — are solvents for polyetherimide. Laboratory reagents.[28][29]No common workshop solvent; 1,2-dichloroethane destroys it inside a week and dichloromethane — a carcinogen — dissolves the surface.[30][31]
Softened or crazed byAcetone, MEK, benzene, toluene and butyl acetate craze or stress-crack it; alcohols, fuels and dilute acids do not.[29][28]Acetone (+16 % weight over 1 year at 23 °C), ethyl acetate, toluene and DMF swell and soften it; methanol crazes it.[30]
Solvent welding & smoothing agentDichloromethane is the only welding route, and it is a controlled carcinogen rather than a workshop material.[28][29]Dichloromethane brushed on is the only agent that smooths PETG — a controlled carcinogen, not workshop stock.[31]

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. ThermaX PEI 1010 Technical Data Sheet v4 3DXTech · 2026-08 · tds
  2. Prusament PEI 1010 Technical Datasheet v1.0 Prusa Polymers · 2024-09 · tds
  3. Fiberon PETG-ESD Technical Data Sheet V1.1 Polymaker · 2026-08 · tds
  4. 3DXSTAT ESD-PETG Technical Data Sheet 3DXTech · 2026-08 · tds
  5. ULTEM 1010 Resin — FDM Material Data Sheet Stratasys · 2026-06 · tds
  6. 3DXTech product catalogue 3DXTech · 2026-08 · vendor
  7. Kimya PEI-1010 Amber Yellow 1.75 mm 500 g igo3d · 2026-08 · vendor
  8. Prusa Prusament PEI 1010 Natural (NFC), 1.75 mm / 500 g 3DJAKE · 2026-08 · vendor
  9. 3D4Makers product catalogue 3D4Makers · 2026-08 · vendor
  10. IEMAI 3D PEI 1010 3D Printing Filament — store page IEMAI 3D · 2026-08 · vendor
  11. Polymaker product catalogue Polymaker · 2026-08 · vendor
  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. Prusament PEI 1010 — material page Prusa Polymers · 2026-08 · doc
  16. THERMAX PEI 1010 — product page (print recommendations) 3DXTech · 2026-08 · doc
  17. 3DXSTAT ESD-PETG — product page (print recommendations) 3DXTech · 2026-08 · doc
  18. PET and PETG — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  19. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  20. TECAPEI natural (PEI) — stock shape properties Ensinger · 2026-08 · tds
  21. PCTG vs PETG comparison — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  22. Extrudr PETG vs PCTG vs XPETG-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  23. Prusament PETG-CF vs PETG V0 vs PETG — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  24. BambuLab PETG Basic vs Translucent vs PETG-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  25. Mechanical Properties of Additively Manufactured Polymeric Materials — PLA and PETG — For Biomechanical Applications Polymers 16(13):1868 · 2024-06 · paper
  26. Prusament PETG V0 Technical Datasheet Prusa Polymers · 2026-08 · tds
  27. 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
  28. Radel PPSU, Veradel PESU, Acudel modified PPSU Design Guide — environmental stress cracking tables Solvay Specialty Polymers · 2026-08 · tds
  29. Chemical resistance — resistance of Ensinger plastics to chemicals (DIN 50 014, 23/50) Ensinger · 2026-08 · tds
  30. Eastman Spectar copolyester — Chemical resistance (unstressed bars, 1 year at 23 °C) Eastman Chemical Company · 2026-08 · tds
  31. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc