3D Printing Info

Filament comparison

PETG-CF vs PETG-ESD

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

Carbon-fibre PETG (PETG-CF) guideESD-safe PETG guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PETG-CF comparisonsMore PETG-ESD comparisons
PETG-CF vs PETG-ESD — documented properties and sources
PropertyCarbon-fibre PETG (PETG-CF)PETGESD-safe PETGPETG
Market snapshot
Listing priceUSD/kg; dated snapshots$29.99/kg median; $16.00–$74.22/kg across 11 dated product listings$102.99/kg median; $65.98–$140.00/kg across 2 dated product listings
Identity & Market
Base polymer / chemistryPETG reinforced with chopped carbon fibre[1][2]PETG compounded with a conductive filler to bring surface resistivity into the static-dissipative range[3][4]
Densityg/cm³1.25 (Bambu Lab) to 1.34 (3DXTech), ISO 1183; Prusament 1.27[1][5][2]1.24 (Fiberon) and 1.28 (3DXTech), ISO 1183[3][4]
Typical priceUSD/kg1 kg-equivalent spools span 16–74; the middle of the market is about 29[1][6][7][8][9][10][11][12]1 kg-equivalent spools span 66–140; the middle of the market is about 103[13][14]
Price range across brandsUSD/kg16–74 across brands; ELEGOO 16 in a 5 kg pack, Reli3D 17, SUNLU 20, IEMAI 22, Siraya Tech 25, Bambu Lab 32, Sakata 3D 53, 3DXTech 67, Prusament 70, Filament PM 74 on 0.5 kg spools[15][1][14][6][7][8][9][10][11][12]66–140 across brands; Fiberon PETG-ESD 66, 3DXSTAT ESD-PETG 140[13][14]
Market availability1–5Stocked by most mainstream brands[1][14][6][15]Niche, a handful of specialist brands[13][14]
Spool sizes & diameters1.75 and 2.85 mm; 0.75 and 1 kg spools[14][1]1.75 mm; 0.5, 0.75, 1 and 3 kg spools[13][14]
Typical applicationsStiff functional parts and fixtures where PETG's toughness is traded for rigidity and a matte finish[1][2]Electronics fixtures, trays and jigs handled around static-sensitive components[3][4]
Diameter tolerance± mm±0.02 (Prusament)[2]Not documented
Printing Parameters
Nozzle temperature°C240–270 (Bambu Lab); 265 ± 10 (Prusament)[1][2]250–290 (Fiberon)[3]
Bed temperature°C65–75 (Bambu Lab); 90 ± 10 (Prusament)[1][2]70–80 (Fiberon); 70 (3DXTech)[3][4]
Enclosure / chamber requirement1–5Open frame fine; draught shield helps — Bambu Lab specifies a 35–50 °C chamber[1]Open frame is fine — Fiberon specifies room-temperature chamber[3]
Recommended chamber temperature°C35–50 (Bambu Lab)[1]Not documented
Part cooling fan0–60 % (Bambu Lab); 50 % (Prusament)[1][2]Not documented
Bed surface & adhesion aidTextured PEI or engineering plate with glue (Bambu Lab)[1]Textured PEI, satin or powder-coated sheets; on smooth PEI a glue stick acts as a release agent[16][17]
Maximum volumetric flow (mm³/s; see test conditions)mm³/s11.5 on My Tech Fun's Bambu Lab PETG-CF profile[18]Fiberon 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][19]
Bed-adhesion difficulty1–5Needs the right surface or a thin adhesive[1]Needs the right surface or a thin adhesive — the problem is releasing the part, not sticking it[16][17]
Stringing / oozing tendency1–5Slight — the fibre reduces stringing against unfilled PETG[1][20]Moderate — retraction tuning needed; Polymaker names stringing as PETG's common quirk[17]
Overall printing difficulty1–5Intermediate — dry filament and a tuned profile; hardened nozzle mandatory[1]Intermediate — dry filament and a tuned profile; resistivity depends on getting the nozzle temperature right[3]
Hardware Wear & Reliability
Nozzle hardness required1–4Hardened steel required[1]Hardened steel required[3]
Abrasiveness1–5Highly abrasive — standard CF composite[1]Moderately abrasive — conductive carbon filler[3]
Nozzle clog risk1–5Moderate — needs dry filament and a clean nozzle; 3DXTech specifies a hardened 0.4 mm minimum nozzle and 0.25 mm layers or higher, and Prusa lists composites as a higher clogging risk[21][22]Low — 3DXTech lists no special nozzle concerns and no minimum layer height for its ESD-PETG, only a 65 °C pre-dry[23]
Heat-creep / jam sensitivity1–5Slightly sensitive[20]Slightly sensitive[20]
Hotend requirementHardened steel nozzle; no high-temperature hot-end needed[1][20]No special hot-end required[20]
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Low — 0.30 % saturated at 25 °C / 55 % RH (Bambu Lab)[1]Moderate (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[16][23]
Equilibrium moisture content at ~50 % RH%0.30 saturated at 25 °C / 55 % RH (Bambu Lab); Prusa measures 0.10 after 7 days at 22 % RH[1][2]0.41 equilibrium water absorption (Fiberon PETG-ESD)[3]
Drying temperature & time65 °C for 8 h (Bambu Lab)[1]65 °C for 3 h (Fiberon)[3]
Symptoms when wetBubbling and popping at the nozzle, stringing and a rough surface[24]Bubbling and popping at the nozzle, stringing and a rough surface[24]
Effect of moisture on strengthNo dry-versus-conditioned figures published; Bambu Lab states PETG-CF must be properly dried before printing and stored dry after use[1][24]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[24]
Storage requirementSealed with desiccant; Bambu Lab says store dry after use[1][24]Sealed with desiccant; Polymaker groups PETG with the highly hygroscopic materials[24][17]
Mechanical Properties
Tensile strength (XY)MPa35 ± 5 (Bambu Lab) and 47 ± 2 at yield (Prusament) printed XY, ISO 527; 56 at break for 3DXTech[1][2][5]36.1 ± 0.9 printed XY, ISO 527 (Fiberon); 3DXTech quotes 50 at break[3][4]
Young's modulusMPa2460 ± 230 (Bambu Lab) and 1700 (Prusament) printed XY, ISO 527[1][2]1983 ± 75 printed XY, ISO 527 (Fiberon)[3]
Elongation at break%4.3 at yield (Prusament, printed XY, ISO 527); 3 at break for 3DXTech[2][5]7.3 ± 0.7 printed XY, ISO 527 (Fiberon); 3DXTech quotes 13 at break[3][4]
Flexural strengthMPa68 ± 3 printed horizontal, ISO 178 (Prusament)[2]54.0 ± 2.5 printed XY, ISO 178 (Fiberon)[3]
Flexural modulusMPa2300 printed horizontal, 3100 printed vertical, ISO 178 (Prusament)[2]1651 ± 141 printed XY, ISO 178 (Fiberon)[3]
Charpy impact, notchedkJ/m²Not documented5.7 ± 0.5 printed XY, ISO 179, notched (Fiberon)[3]
Other impact dataCharpy unnotched 29 ± 6 printed horizontal and 43 ± 8 printed vertical (Prusament, ISO 179-1); Izod 4.91 kJ/m² on My Tech Fun bars[2][18]Charpy unnotched 29.3 ± 2.2 printed XY (Fiberon, ISO 179)[3]
Layer adhesion / Z tensileMPa29 ± 4 printed Z (Bambu Lab, ISO 527); 18 ± 3 by Prusa's interlayer adhesion test; 10.7 on My Tech Fun bars[1][2][18]20.7 ± 0.6 printed Z, ISO 527 (Fiberon)[3]
Brittleness1–5Brittle — snaps with little warning[5]Moderate[3]
Hardness (scale-specific)Shore A / Shore D / Rockwell77 Shore D (Prusa Polymers method)[2]Not documented
Creep resistance / sustained load1–5Below average — a 12 mm bar sagged to 16.4 mm over 5 days at 1.25 kg, less than plain PETG's 19.4[18]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[25][26][27][18]
Fatigue / repeated-flex resistance1–5Moderate — no CF-grade S-N curve; unfilled printed PETG ran 79 000–193 000 cycles at 30 % of tensile strength[28]Moderate — no ESD-grade S-N curve; unfilled printed PETG ran 79 000–193 000 cycles at 30 % of tensile strength[28]
Elasticity / flexibility1–5Rigid[1]Slightly flexible in thin sections[3]
Z strength as % of XY%83 (Bambu Lab, printed Z against XY tensile)[1]57 (Fiberon, printed Z against XY tensile)[3]
Thermal Properties
HDT at 0.45 MPa°C74 (Bambu Lab) and 96 (Prusament), ISO 75 at 0.45 MPa[1][2]76 (ISO 75, 0.45 MPa, Fiberon)[3]
HDT at 1.8 MPa°C68 (Bambu Lab) and 80 (Prusament), ISO 75 at 1.8 MPa[1][2]72 (ISO 75, 1.8 MPa, Fiberon)[3]
Glass transition (Tg)°C68 (Bambu Lab) and 80 (3DXTech), DSC[1][5]77 (Fiberon) and 80 (3DXTech), DSC[3][4]
Melting point / Vicat°C225 melting (Bambu Lab, DSC) — the carbon fibre lets the PET fraction crystallise[1]Amorphous — no melting point; Vicat 86 (Fiberon, ISO 306)[3]
Continuous service temperature°C77 — loaded bars begin to move at this temperature, against 61 for Bambu Lab PETG Basic[18]Not documented
Flammability / UL 94Flammable; no UL 94 rating published[1]Flammable; no UL 94 rating published for standard grades[29]
Environment & Chemical
UV resistance1–5Moderate — a season or two; the carbon fibre does not add UV stabilisation[17]Not documented
Chemical resistanceWithstands acids, alkalis, oils and UV exposure, as for unfilled PETG[17]Withstands acids, alkalis, oils and UV exposure[17]
Food contactNot certified for food contact[17]Not certified for food contact as filament[17]
Biodegradability / compostabilityNot biodegradable[17]Not biodegradable[17]
RecyclabilityFibre-filled PETG is not accepted in household plastic collection[17]Not accepted in household plastic collection[17]
Electrical & ESD propertiesSurface resistance above 10⁹ ohm/sq — carbon fibre at this loading is not static-dissipative (3DXTech)[5]Surface 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[30]Moderate — measurable VOCs and UFPs, ventilation advised[30]
Ventilation / filtration requirement1–5Open a window / occasional ventilation[30]Open a window / occasional ventilation[30]
Dust & fibre handling hazardCarbon fibre is bound in the matrix; sanding dust should not be inhaled[5]Conductive carbon filler is bound in the matrix; avoid inhaling sanding dust[3]
Post-Processing
Sanding & machiningSands to a matte finish more readily than unfilled PETG[20]Sands poorly — the material is tough and gums rather than powders[20]
Gluing & solvent weldingCyanoacrylate; no common solvent welds it[20]Cyanoacrylate; no common solvent welds PETG cleanly[20]
Vapour / chemical smoothingNo practical vapour smoothing[20]No practical vapour smoothing[20]
Support material pairingSupport for PLA or its own material (Bambu Lab)[1]Prints its own supports; Polymaker rates PolyDissolve S1 for PETG[20]
Dimensional accuracy & detailMatte finish hides layer lines; stringing is reduced against unfilled PETG[1]Nozzle temperature has to be held steady — it moves surface resistivity by three orders of magnitude[3]
Solvents & Solubility
Soluble inNo common workshop solvent; dichloromethane — a carcinogen — dissolves the matrix surface, 1,2-dichloroethane destroys it in a week.[31][32]No common workshop solvent; 1,2-dichloroethane destroys it inside a week and dichloromethane — a carcinogen — dissolves the surface.[31][32]
Softened or crazed byAcetone (+16 % weight over 1 year at 23 °C), ethyl acetate, toluene and DMF swell and soften it; methanol crazes it.[31]Acetone (+16 % weight over 1 year at 23 °C), ethyl acetate, toluene and DMF swell and soften it; methanol crazes it.[31]
Solvent welding & smoothing agentDichloromethane reaches only the resin, so the fibre is left standing proud of the surface. Controlled carcinogen.[32]Dichloromethane brushed on is the only agent that smooths PETG — a controlled carcinogen, not workshop stock.[32]

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. Bambu Filament Technical Data Sheet — PETG-CF Bambu Lab · 2026-08 · tds
  2. Prusament PETG Carbon Fiber Technical Datasheet Prusa Polymers · 2026-08 · 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. CarbonX Carbon Fiber PETG Technical Data Sheet 3DXTech · 2026-08 · tds
  6. Printed Solid product catalogue Printed Solid · 2026-08 · vendor
  7. SUNLU PETG-CF (PETG Carbon Fiber) 3D Printer Filament 1 kg SUNLU · 2026-08 · vendor
  8. Fibreheart PETG-CF Pro Filament product page Siraya Tech · 2026-08 · vendor
  9. IEMAI CF-PETG 3D Printing Filament product page IEMAI 3D · 2026-08 · vendor
  10. Reli3D Carbon Fiber PETG Filament 1.75 mm, 1 kg Reli3D (Amazon US) · 2026-08 · vendor
  11. PET-G CF15 Sakata 3D Filaments · 2026-08 · vendor
  12. Filament PM CFJet technical data sheet (TDS CFJet ENG.pdf) Filament PM (Plasty Mladec) · 2026-08 · tds
  13. Polymaker product catalogue Polymaker · 2026-08 · vendor
  14. 3DXTech product catalogue 3DXTech · 2026-08 · vendor
  15. ELEGOO product catalogue ELEGOO · 2026-08 · vendor
  16. Prusament PETG Technical Datasheet v1.1 Prusa Polymers · 2022-02 · tds
  17. PETG — material basics Polymaker Wiki · 2026-08 · doc
  18. BambuLab PETG Basic vs Translucent vs PETG-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  19. Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
  20. PET and PETG — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  21. CARBONX PETG+CF — product page (print recommendations) 3DXTech · 2026-08 · doc
  22. Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
  23. 3DXSTAT ESD-PETG — product page (print recommendations) 3DXTech · 2026-08 · doc
  24. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  25. PCTG vs PETG comparison — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  26. Extrudr PETG vs PCTG vs XPETG-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  27. Prusament PETG-CF vs PETG V0 vs PETG — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  28. Mechanical Properties of Additively Manufactured Polymeric Materials — PLA and PETG — For Biomechanical Applications Polymers 16(13):1868 · 2024-06 · paper
  29. Prusament PETG V0 Technical Datasheet Prusa Polymers · 2026-08 · tds
  30. 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
  31. Eastman Spectar copolyester — Chemical resistance (unstressed bars, 1 year at 23 °C) Eastman Chemical Company · 2026-08 · tds
  32. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc