3D Printing Info

Filament comparison

PETG-GF vs PPS-CF

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

Glass-fibre polyester (PETG-GF / PET-GF) guideFibre-reinforced PPS guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PETG-GF comparisonsMore PPS-CF comparisons
PETG-GF vs PPS-CF — documented properties and sources
PropertyGlass-fibre polyester (PETG-GF / PET-GF)PETGFibre-reinforced PPSHIGHTEMP
Market snapshot
Listing priceUSD/kg; dated snapshots$27.38/kg median; $18.99–$29.99/kg across 3 dated product listings$139.98/kg median; $119.98–$174.17/kg across 5 dated product listings
Identity & Market
Base polymer / chemistryGlass-fibre reinforced polyester. Polymaker's Fiberon PET-GF15 uses a PET rather than a PETG matrix and carries 15 wt% glass fibre[1]Carbon-fibre reinforced PPS — Polymaker's Fiberon grade is nominally 10 wt%[2]
Densityg/cm³1.43 (Fiberon PET-GF15, ISO 1183)[1]1.29 (Fiberon PPS-CF10) and 1.36 (Fiberon PPS-GF20), ISO 1183[2][3]
Typical priceUSD/kg1 kg spools cluster near 25[4][5]1 kg-equivalent spools span 93–174; the middle of the market is about 140[5][6][7][8]
Price range across brandsUSD/kg19–30 across brands; ELEGOO 19, Polymaker Fiberon 30[4][5]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[5][6][7][8]
Market availability1–5Niche, a handful of specialist brands[4][5]Available from several mainstream brands[5][6][7]
Spool sizes & diameters1.75 mm; 0.5 and 1 kg spools[5]1.75 mm; 0.5 kg spools[5]
Typical applicationsStiff, dimensionally stable fixtures; the Fiberon grade is designed to be annealed for heat resistance[1]Chemical and automotive parts needing PPS chemistry with structural stiffness[2]
Printing Parameters
Enclosure / chamber requirement1–5Not documentedEnclosure required (passive) — Polymaker states its Fiberon PPS-CF10 needs no heated chamber, unlike the unfilled sulfones and PAEKs[2]
Bed surface & adhesion aidTextured PEI, satin or powder-coated sheets; on smooth PEI a glue stick acts as a release agent[9][10]Not documented
Bed-adhesion difficulty1–5Needs the right surface or a thin adhesive — the problem is releasing the part, not sticking it[9][10]Not documented
Stringing / oozing tendency1–5Moderate — retraction tuning needed; Polymaker names stringing as PETG's common quirk[10]Not documented
Overall printing difficulty1–5Not documentedExpert / industrial hardware only[2]
Hardware Wear & Reliability
Nozzle hardness required1–4Hardened steel required[1]Hardened steel required[2]
Abrasiveness1–5Highly abrasive — standard GF composite[1]Highly abrasive — standard CF composite[2]
Nozzle clog risk1–5Moderate — needs dry filament and a clean nozzle; Prusa lists higher risk of nozzle clogging for glass-filled composites[11]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[12][11]
Heat-creep / jam sensitivity1–5Slightly sensitive[13]Not documented
Hotend requirementNo special hot-end required[13]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; no glass-filled grade publishes its own figure[9]Low (0.1–0.3 %) — 0.225 % equilibrium for Fiberon PPS-CF10 and 0.11 % for PPS-GF20[2][3]
Equilibrium moisture content at ~50 % RH%Not documented0.225 equilibrium (Fiberon PPS-CF10); 0.11 (PPS-GF20)[2][3]
Symptoms when wetBubbling and popping at the nozzle, stringing and a rough surface[14]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[14]No dry-versus-conditioned figures are published; equilibrium uptake is 0.225 % and Polymaker specifies a 100 °C, 10 h dry[2]
Storage requirementSealed with desiccant; Polymaker groups PETG with the highly hygroscopic materials[14][10]Not documented
Mechanical Properties
Tensile strength (XY)MPa59.9 ± 0.8 printed XY, ISO 527 (Fiberon PET-GF15)[1]59.4 ± 1.3 (PPS-CF10) and 64.1 ± 2.1 (PPS-GF20) printed XY, ISO 527[2][3]
Young's modulusMPa4144 ± 133 printed XY, ISO 527 (Fiberon PET-GF15)[1]5446.7 ± 149.0 (PPS-CF10) and 4552.0 ± 54.6 (PPS-GF20) printed XY, ISO 527[2][3]
Elongation at break%4.0 ± 0.5 printed XY, ISO 527 (Fiberon PET-GF15)[1]1.4 ± 0.1 (PPS-CF10) and 2.0 ± 0.2 (PPS-GF20) printed XY, ISO 527 — the lowest elongation in the dataset[2][3]
Flexural strengthMPa104.2 ± 2.4 printed XY, ISO 178 (Fiberon PET-GF15)[1]Not documented
Flexural modulusMPa3705 ± 85 printed XY, ISO 178 (Fiberon PET-GF15)[1]Not documented
Charpy impact, notchedkJ/m²8.7 ± 0.6 printed XY, ISO 179, notched (Fiberon PET-GF15)[1]5.3 ± 0.2 printed XY for PPS-CF10 and 7.3 ± 0.2 for PPS-GF20, ISO 179 notched[2][3]
Other impact dataCharpy unnotched 27.2 ± 2.0 printed XY (Fiberon PET-GF15, ISO 179)[1]Not documented
Layer adhesion / Z tensileMPa48.2 ± 0.3 printed Z, ISO 527 (Fiberon PET-GF15)[1]32.0 ± 5.1 (PPS-CF10) and 22.9 ± 0.8 (PPS-GF20) printed Z, ISO 527[2][3]
Brittleness1–5Brittle — snaps with little warning; elongation 4.0 % in XY and 2.6 % in Z[1]Very brittle — cracks or shatters easily; elongation at break 1.4 %[2]
Hardness (scale-specific)Shore A / Shore D / RockwellNot documentedRockwell 105 (and R124) on extruded unfilled PPS stock (ASTM D785); no figure is published for a fibre-filled PPS filament[15]
Creep resistance / sustained load1–5Below 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[16][17][18]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[15][19][2]
Fatigue / repeated-flex resistance1–5Below average — no GF-grade S-N curve; elongation at break falls to 4.0 % in XY against 5.2–9.3 % unfilled[1][20]Not documented
Elasticity / flexibility1–5Rigid[1]Rigid[2]
Z strength as % of XY%80 (Fiberon PET-GF15, printed Z against XY tensile)[1]54 (PPS-CF10) and 36 (PPS-GF20), printed[2][3]
Thermal Properties
HDT at 0.45 MPa°C81.6 as printed, 133.7 after annealing (ISO 75, 0.45 MPa)[1]252.5 (PPS-CF10) and 236.3 (PPS-GF20), printed, ISO 75 at 0.45 MPa[2][3]
HDT at 1.8 MPa°C71.8 as printed, 87.3 after annealing (ISO 75, 1.8 MPa)[1]133 (PPS-CF10) and 125.8 (PPS-GF20), printed, ISO 75 at 1.8 MPa[2][3]
Glass transition (Tg)°C59.5 (DSC)[1]97.7 (PPS-CF10) and 95.0 (PPS-GF20), DSC[2][3]
Melting point / Vicat°C231.6 melting (DSC); Vicat 232.6 (ISO 306)[1]279.7 (PPS-CF10) and 279.6 (PPS-GF20) melting, DSC; Vicat 267.5 and 272.5 (ISO 306)[2][3]
Continuous service temperature°CNot documented170 long-term service on extruded PPS stock, converted from 338 °F; no figure published for the carbon-filled grade[15]
Annealing responseAnnealing lifts HDT at 0.45 MPa from 81.6 to 133.7 °C[1]Not documented
Thermal expansion (CTE)µm/m·K20 along the print bead and 63–74 in the build direction at 30 °C (30 wt% GF, large-format printed, TMA)[21]Not documented
Flammability / UL 94UL 94 HB at 1.5 mm (Fiberon PET-GF15)[1]Not documented
Environment & Chemical
Chemical resistanceWithstands acids, alkalis, oils and UV exposure[10]Outstanding — PPS resists essentially all solvents below 200 °C[12]
Food contactNot certified for food contact as filament[10]Not documented
Biodegradability / compostabilityNot biodegradable[10]Not documented
RecyclabilityNot accepted in household plastic collection[10]Not documented
Electrical & ESD propertiesSurface resistivity above 10¹² ohm — insulating (Fiberon PET-GF15, ANSI/ESD S11.11)[1]Surface resistivity above 10¹² ohm — insulating (ANSI/ESD S11.11)[2][3]
Health & Safety
Fume toxicity1–5Moderate — measurable VOCs and UFPs, ventilation advised[22]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[22]
Ventilation / filtration requirement1–5Open a window / occasional ventilation[22]Ventilated room or enclosure recommended[22]
Dust & fibre handling hazardGlass fibre is bound in the matrix; avoid inhaling sanding dust[1]Fibre is bound in the matrix; sanding dust should not be inhaled[2]
Post-Processing
Sanding & machiningSands poorly — the material is tough and gums rather than powders[13]Not documented
Gluing & solvent weldingCyanoacrylate; no common solvent welds PETG cleanly[13]Not documented
Vapour / chemical smoothingNo practical vapour smoothing[13]Not documented
Support material pairingPrints its own supports; Polymaker rates PolyDissolve S1 for PETG[13]Not documented
Solvents & Solubility
Soluble inNo common workshop solvent; dichloromethane — a carcinogen — dissolves the matrix surface, 1,2-dichloroethane destroys it in a week.[23][24]None — PPS does not dissolve in any known solvent below 200 °C.[25][26]
Softened or crazed byAcetone (+16 % weight over 1 year at 23 °C), ethyl acetate, toluene and DMF swell and soften it; methanol crazes it.[23]Nothing at 23 °C; Ensinger rates it only conditionally resistant to benzene, dichloromethane, toluene and pyridine.[26]
Solvent welding & smoothing agentDichloromethane reaches only the resin, so the fibre is left standing proud of the surface. Controlled carcinogen.[24]None — no solvent welds or smooths PPS.[25]

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 PET-GF15 Technical Data Sheet V1.0 Polymaker · 2026-08 · tds
  2. Fiberon PPS-CF10 Technical Data Sheet V1.1 Polymaker · 2025-07 · tds
  3. Fiberon PPS-GF20 Technical Data Sheet V1.1 Polymaker · 2025-07 · tds
  4. ELEGOO product catalogue ELEGOO · 2026-08 · vendor
  5. Polymaker product catalogue Polymaker · 2026-08 · vendor
  6. Bambu Lab PPS-CF Black, spool (750 g) 3DJAKE · 2026-08 · vendor
  7. 3D4Makers product catalogue 3D4Makers · 2026-08 · vendor
  8. IEMAI 3D CF-PPS 3D Printing Filament — store page IEMAI 3D · 2026-08 · vendor
  9. Prusament PETG Technical Datasheet v1.1 Prusa Polymers · 2022-02 · tds
  10. PETG — material basics Polymaker Wiki · 2026-08 · doc
  11. Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
  12. PPS — material basics Polymaker Wiki · 2026-08 · doc
  13. PET and PETG — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  14. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  15. TECATRON natural (PPS) — stock shape properties Ensinger · 2026-08 · tds
  16. Extrudr PETG vs PCTG vs XPETG-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  17. Prusament PETG-CF vs PETG V0 vs PETG — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  18. BambuLab PETG Basic vs Translucent vs PETG-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  19. Spectrum PPS AM230 Technical Data Sheet Spectrum Filaments · 2022-04 · tds
  20. Mechanical Properties of Additively Manufactured Polymeric Materials — PLA and PETG — For Biomechanical Applications Polymers 16(13):1868 · 2024-06 · paper
  21. 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
  22. 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
  23. Eastman Spectar copolyester — Chemical resistance (unstressed bars, 1 year at 23 °C) Eastman Chemical Company · 2026-08 · tds
  24. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc
  25. PPS (Polyphenylene sulfide) — Knowledge Base Prusa Research · 2026-08 · doc
  26. Chemical resistance — resistance of Ensinger plastics to chemicals (DIN 50 014, 23/50) Ensinger · 2026-08 · tds