3D Printing Info

Filament comparison

PETG-ESD vs PETG-GF

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

ESD-safe PETG guideGlass-fibre polyester (PETG-GF / PET-GF) guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PETG-ESD comparisonsMore PETG-GF comparisons
PETG-ESD vs PETG-GF — documented properties and sources
PropertyESD-safe PETGPETGGlass-fibre polyester (PETG-GF / PET-GF)PETG
Market snapshot
Listing priceUSD/kg; dated snapshots$102.99/kg median; $65.98–$140.00/kg across 2 dated product listings$27.38/kg median; $18.99–$29.99/kg across 3 dated product listings
Identity & Market
Base polymer / chemistryPETG compounded with a conductive filler to bring surface resistivity into the static-dissipative range[1][2]Glass-fibre reinforced polyester. Polymaker's Fiberon PET-GF15 uses a PET rather than a PETG matrix and carries 15 wt% glass fibre[3]
Densityg/cm³1.24 (Fiberon) and 1.28 (3DXTech), ISO 1183[1][2]1.43 (Fiberon PET-GF15, ISO 1183)[3]
Typical priceUSD/kg1 kg-equivalent spools span 66–140; the middle of the market is about 103[4][5]1 kg spools cluster near 25[6][4]
Price range across brandsUSD/kg66–140 across brands; Fiberon PETG-ESD 66, 3DXSTAT ESD-PETG 140[4][5]19–30 across brands; ELEGOO 19, Polymaker Fiberon 30[6][4]
Market availability1–5Niche, a handful of specialist brands[4][5]Niche, a handful of specialist brands[6][4]
Spool sizes & diameters1.75 mm; 0.5, 0.75, 1 and 3 kg spools[4][5]1.75 mm; 0.5 and 1 kg spools[4]
Typical applicationsElectronics fixtures, trays and jigs handled around static-sensitive components[1][2]Stiff, dimensionally stable fixtures; the Fiberon grade is designed to be annealed for heat resistance[3]
Printing Parameters
Nozzle temperature°C250–290 (Fiberon)[1]Not documented
Bed temperature°C70–80 (Fiberon); 70 (3DXTech)[1][2]Not documented
Enclosure / chamber requirement1–5Open frame is fine — Fiberon specifies room-temperature chamber[1]Not documented
Bed surface & adhesion aidTextured PEI, satin or powder-coated sheets; on smooth PEI a glue stick acts as a release agent[7][8]Textured PEI, satin or powder-coated sheets; on smooth PEI a glue stick acts as a release agent[7][8]
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][9]Not documented
Bed-adhesion difficulty1–5Needs the right surface or a thin adhesive — the problem is releasing the part, not sticking it[7][8]Needs the right surface or a thin adhesive — the problem is releasing the part, not sticking it[7][8]
Stringing / oozing tendency1–5Moderate — retraction tuning needed; Polymaker names stringing as PETG's common quirk[8]Moderate — retraction tuning needed; Polymaker names stringing as PETG's common quirk[8]
Overall printing difficulty1–5Intermediate — dry filament and a tuned profile; resistivity depends on getting the nozzle temperature right[1]Not documented
Hardware Wear & Reliability
Nozzle hardness required1–4Hardened steel required[1]Hardened steel required[3]
Abrasiveness1–5Moderately abrasive — conductive carbon filler[1]Highly abrasive — standard GF composite[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[10]Moderate — needs dry filament and a clean nozzle; Prusa lists higher risk of nozzle clogging for glass-filled composites[11]
Heat-creep / jam sensitivity1–5Slightly sensitive[12]Slightly sensitive[12]
Hotend requirementNo special hot-end required[12]No special hot-end required[12]
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[7][10]Moderate (0.3–0.8 %) — the PETG matrix reaches 0.40 % saturated at 25 °C / 55 % RH; no glass-filled grade publishes its own figure[7]
Equilibrium moisture content at ~50 % RH%0.41 equilibrium water absorption (Fiberon PETG-ESD)[1]Not documented
Drying temperature & time65 °C for 3 h (Fiberon)[1]Not documented
Symptoms when wetBubbling and popping at the nozzle, stringing and a rough surface[13]Bubbling and popping at the nozzle, stringing and a rough surface[13]
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[13]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[13]
Storage requirementSealed with desiccant; Polymaker groups PETG with the highly hygroscopic materials[13][8]Sealed with desiccant; Polymaker groups PETG with the highly hygroscopic materials[13][8]
Mechanical Properties
Tensile strength (XY)MPa36.1 ± 0.9 printed XY, ISO 527 (Fiberon); 3DXTech quotes 50 at break[1][2]59.9 ± 0.8 printed XY, ISO 527 (Fiberon PET-GF15)[3]
Young's modulusMPa1983 ± 75 printed XY, ISO 527 (Fiberon)[1]4144 ± 133 printed XY, ISO 527 (Fiberon PET-GF15)[3]
Elongation at break%7.3 ± 0.7 printed XY, ISO 527 (Fiberon); 3DXTech quotes 13 at break[1][2]4.0 ± 0.5 printed XY, ISO 527 (Fiberon PET-GF15)[3]
Flexural strengthMPa54.0 ± 2.5 printed XY, ISO 178 (Fiberon)[1]104.2 ± 2.4 printed XY, ISO 178 (Fiberon PET-GF15)[3]
Flexural modulusMPa1651 ± 141 printed XY, ISO 178 (Fiberon)[1]3705 ± 85 printed XY, ISO 178 (Fiberon PET-GF15)[3]
Charpy impact, notchedkJ/m²5.7 ± 0.5 printed XY, ISO 179, notched (Fiberon)[1]8.7 ± 0.6 printed XY, ISO 179, notched (Fiberon PET-GF15)[3]
Other impact dataCharpy unnotched 29.3 ± 2.2 printed XY (Fiberon, ISO 179)[1]Charpy unnotched 27.2 ± 2.0 printed XY (Fiberon PET-GF15, ISO 179)[3]
Layer adhesion / Z tensileMPa20.7 ± 0.6 printed Z, ISO 527 (Fiberon)[1]48.2 ± 0.3 printed Z, ISO 527 (Fiberon PET-GF15)[3]
Brittleness1–5Moderate[1]Brittle — snaps with little warning; elongation 4.0 % in XY and 2.6 % in Z[3]
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[14][15][16][17]Below average — no GF-grade creep test; the CF grades sagged to 14.8–16.7 mm over 5 days at 1.25 kg against 17.1–20.4 mm unfilled[15][16][17]
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[18]Below average — no GF-grade S-N curve; elongation at break falls to 4.0 % in XY against 5.2–9.3 % unfilled[3][18]
Elasticity / flexibility1–5Slightly flexible in thin sections[1]Rigid[3]
Z strength as % of XY%57 (Fiberon, printed Z against XY tensile)[1]80 (Fiberon PET-GF15, printed Z against XY tensile)[3]
Thermal Properties
HDT at 0.45 MPa°C76 (ISO 75, 0.45 MPa, Fiberon)[1]81.6 as printed, 133.7 after annealing (ISO 75, 0.45 MPa)[3]
HDT at 1.8 MPa°C72 (ISO 75, 1.8 MPa, Fiberon)[1]71.8 as printed, 87.3 after annealing (ISO 75, 1.8 MPa)[3]
Glass transition (Tg)°C77 (Fiberon) and 80 (3DXTech), DSC[1][2]59.5 (DSC)[3]
Melting point / Vicat°CAmorphous — no melting point; Vicat 86 (Fiberon, ISO 306)[1]231.6 melting (DSC); Vicat 232.6 (ISO 306)[3]
Annealing responseNot documentedAnnealing lifts HDT at 0.45 MPa from 81.6 to 133.7 °C[3]
Thermal expansion (CTE)µm/m·KNot documented20 along the print bead and 63–74 in the build direction at 30 °C (30 wt% GF, large-format printed, TMA)[19]
Flammability / UL 94Flammable; no UL 94 rating published for standard grades[20]UL 94 HB at 1.5 mm (Fiberon PET-GF15)[3]
Environment & Chemical
Chemical resistanceWithstands acids, alkalis, oils and UV exposure[8]Withstands acids, alkalis, oils and UV exposure[8]
Food contactNot certified for food contact as filament[8]Not certified for food contact as filament[8]
Biodegradability / compostabilityNot biodegradable[8]Not biodegradable[8]
RecyclabilityNot accepted in household plastic collection[8]Not accepted in household plastic collection[8]
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]Surface resistivity above 10¹² ohm — insulating (Fiberon PET-GF15, ANSI/ESD S11.11)[3]
Health & Safety
Fume toxicity1–5Moderate — measurable VOCs and UFPs, ventilation advised[21]Moderate — measurable VOCs and UFPs, ventilation advised[21]
Ventilation / filtration requirement1–5Open a window / occasional ventilation[21]Open a window / occasional ventilation[21]
Dust & fibre handling hazardConductive carbon filler is bound in the matrix; avoid inhaling sanding dust[1]Glass fibre is bound in the matrix; avoid inhaling sanding dust[3]
Post-Processing
Sanding & machiningSands poorly — the material is tough and gums rather than powders[12]Sands poorly — the material is tough and gums rather than powders[12]
Gluing & solvent weldingCyanoacrylate; no common solvent welds PETG cleanly[12]Cyanoacrylate; no common solvent welds PETG cleanly[12]
Vapour / chemical smoothingNo practical vapour smoothing[12]No practical vapour smoothing[12]
Support material pairingPrints its own supports; Polymaker rates PolyDissolve S1 for PETG[12]Prints its own supports; Polymaker rates PolyDissolve S1 for PETG[12]
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.[22][23]No common workshop solvent; dichloromethane — a carcinogen — dissolves the matrix surface, 1,2-dichloroethane destroys it in a week.[22][23]
Softened or crazed byAcetone (+16 % weight over 1 year at 23 °C), ethyl acetate, toluene and DMF swell and soften it; methanol crazes it.[22]Acetone (+16 % weight over 1 year at 23 °C), ethyl acetate, toluene and DMF swell and soften it; methanol crazes it.[22]
Solvent welding & smoothing agentDichloromethane brushed on is the only agent that smooths PETG — a controlled carcinogen, not workshop stock.[23]Dichloromethane reaches only the resin, so the fibre is left standing proud of the surface. Controlled carcinogen.[23]

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. Fiberon PET-GF15 Technical Data Sheet V1.0 Polymaker · 2026-08 · tds
  4. Polymaker product catalogue Polymaker · 2026-08 · vendor
  5. 3DXTech product catalogue 3DXTech · 2026-08 · vendor
  6. ELEGOO product catalogue ELEGOO · 2026-08 · vendor
  7. Prusament PETG Technical Datasheet v1.1 Prusa Polymers · 2022-02 · tds
  8. PETG — material basics Polymaker Wiki · 2026-08 · doc
  9. Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
  10. 3DXSTAT ESD-PETG — product page (print recommendations) 3DXTech · 2026-08 · doc
  11. Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
  12. PET and PETG — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  13. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  14. PCTG vs PETG comparison — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  15. Extrudr PETG vs PCTG vs XPETG-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  16. Prusament PETG-CF vs PETG V0 vs PETG — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  17. BambuLab PETG Basic vs Translucent vs PETG-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  18. Mechanical Properties of Additively Manufactured Polymeric Materials — PLA and PETG — For Biomechanical Applications Polymers 16(13):1868 · 2024-06 · paper
  19. Effects of Fiber Orientation on the Coefficient of Thermal Expansion of Fiber-Filled Polymer Systems in Large Format Polymer Extrusion-Based Additive Manufacturing Materials 15(8):2764 · 2022-04 · paper
  20. Prusament PETG V0 Technical Datasheet Prusa Polymers · 2026-08 · tds
  21. 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
  22. Eastman Spectar copolyester — Chemical resistance (unstressed bars, 1 year at 23 °C) Eastman Chemical Company · 2026-08 · tds
  23. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc