3D Printing Info

Filament comparison

PETG-CF vs POM

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

Carbon-fibre PETG (PETG-CF) guidePOM (acetal) guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PETG-CF comparisonsMore POM comparisons
PETG-CF vs POM — documented properties and sources
PropertyCarbon-fibre PETG (PETG-CF)PETGPOM (acetal)ENGINEERING
Market snapshot
Listing priceUSD/kg; dated snapshots$29.99/kg median; $16.00–$74.22/kg across 11 dated product listingsNot documented
Identity & Market
Base polymer / chemistryPETG reinforced with chopped carbon fibre[1][2]Polyoxymethylene, normally the copolymer POM-C. Apium's filament grade is POM-C with antistatic additives; no unfilled POM filament was found on sale[3][4]
Densityg/cm³1.25 (Bambu Lab) to 1.34 (3DXTech), ISO 1183; Prusament 1.27[1][5][2]1.41 (extruded POM-C stock)[3]
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]Not documented
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[13][1][14][6][7][8][9][10][11][12]Not documented
Market availability1–5Stocked by most mainstream brands[1][14][6][13]Special order, 1-2 makers worldwide — Apium sells a POM-C ESD filament through its own shop and states its printers are the only ones able to process POM-C; no POM filament appears in the 3DJAKE or igo3d product sitemaps, at MatterHackers or at Printed Solid[4][15][16][6]
Spool sizes & diameters1.75 and 2.85 mm; 0.75 and 1 kg spools[14][1]Not documented
Typical applicationsStiff functional parts and fixtures where PETG's toughness is traded for rigidity and a matte finish[1][2]Gears, bushings, bearings, conveyor and food-machinery parts; Apium markets its POM-C ESD grade for semiconductor insulators, aerospace fasteners and sliding parts[3][4]
Diameter tolerance± mm±0.02 (Prusament)[2]Not documented
Printing Parameters
Nozzle temperature°C240–270 (Bambu Lab); 265 ± 10 (Prusament)[1][2]Not documented
Bed temperature°C65–75 (Bambu Lab); 90 ± 10 (Prusament)[1][2]Not documented
Enclosure / chamber requirement1–5Open frame fine; draught shield helps — Bambu Lab specifies a 35–50 °C chamber[1]Not documented
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]Not documented
Maximum volumetric flow (mm³/s; see test conditions)mm³/s11.5 on My Tech Fun's Bambu Lab PETG-CF profile[17]Not documented
Bed-adhesion difficulty1–5Needs the right surface or a thin adhesive[1]Not documented
Stringing / oozing tendency1–5Slight — the fibre reduces stringing against unfilled PETG[1][18]Not documented
Overall printing difficulty1–5Intermediate — dry filament and a tuned profile; hardened nozzle mandatory[1]Not documented
Extruder requirementNot documentedApium states that the adaptive heating system on its industrial machines is what makes POM-C printable, and that no other 3D printer can process it[4]
Hardware Wear & Reliability
Nozzle hardness required1–4Hardened steel required[1]Not documented
Abrasiveness1–5Highly abrasive — standard CF composite[1]Not documented
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[19][20]Not documented
Heat-creep / jam sensitivity1–5Slightly sensitive[18]Not documented
Hotend requirementHardened steel nozzle; no high-temperature hot-end needed[1][18]Not documented
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Low — 0.30 % saturated at 25 °C / 55 % RH (Bambu Lab)[1]Low (0.1-0.3 %) — extruded POM-C stock takes up 0.18 % in 24 h and 0.80 % at saturation (ASTM D570)[3]
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]Not documented
Drying temperature & time65 °C for 8 h (Bambu Lab)[1]Not documented
Symptoms when wetBubbling and popping at the nozzle, stringing and a rough surface[21]Not documented
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][21]Not documented
Storage requirementSealed with desiccant; Bambu Lab says store dry after use[1][21]Not documented
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]66.9 at break and 64.1 at yield (extruded POM-C stock, ASTM D638; converted from 9700 and 9300 psi)[3]
Young's modulusMPa2460 ± 230 (Bambu Lab) and 1700 (Prusament) printed XY, ISO 527[1][2]2275 (extruded POM-C stock, ASTM D638; converted from 330,000 psi)[3]
Elongation at break%4.3 at yield (Prusament, printed XY, ISO 527); 3 at break for 3DXTech[2][5]40 at break and 9 at yield (extruded POM-C stock, ASTM D638)[3]
Flexural strengthMPa68 ± 3 printed horizontal, ISO 178 (Prusament)[2]89.6 (extruded POM-C stock, ASTM D790; converted from 13,000 psi)[3]
Flexural modulusMPa2300 printed horizontal, 3100 printed vertical, ISO 178 (Prusament)[2]2758 (extruded POM-C stock, ASTM D790; converted from 400,000 psi)[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][17]Izod 53 J/m on extruded POM-C stock, converted from 1.0 ft-lb/in[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][17]Not documented
Brittleness1–5Brittle — snaps with little warning[5]Tough — absorbs impact, yields before breaking; extruded stock elongates 40 % before failing. No printed figure is published[3]
Hardness (scale-specific)Shore A / Shore D / Rockwell77 Shore D (Prusa Polymers method)[2]Rockwell 86 (and R120) — the source names only the R scale on extruded POM-C stock (ASTM D785)[3]
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[17]Not documented
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[22]Not documented
Elasticity / flexibility1–5Rigid[1]Not documented
Z strength as % of XY%83 (Bambu Lab, printed Z against XY tensile)[1]Not documented
Wear resistance & frictionNot documentedWear factor 65e-10 in3*min/(ft*lb*h) and a dynamic coefficient of friction of 0.21 at 40 psi and 50 fpm (ASTM D3702, extruded stock) — the properties that make acetal the default gear and bushing plastic; Apium lists good sliding properties as the reason for its grade[3][4]
Thermal Properties
HDT at 0.45 MPa°C74 (Bambu Lab) and 96 (Prusament), ISO 75 at 0.45 MPa[1][2]158 (extruded POM-C stock, ASTM D648 at 66 psi; converted from 316 °F)[3]
HDT at 1.8 MPa°C68 (Bambu Lab) and 80 (Prusament), ISO 75 at 1.8 MPa[1][2]110 (extruded POM-C stock, ASTM D648 at 264 psi; converted from 230 °F)[3]
Glass transition (Tg)°C68 (Bambu Lab) and 80 (3DXTech), DSC[1][5]Not documented
Melting point / Vicat°C225 melting (Bambu Lab, DSC) — the carbon fibre lets the PET fraction crystallise[1]165 melting (extruded POM-C stock; converted from 329 °F)[3]
Continuous service temperature°C77 — loaded bars begin to move at this temperature, against 61 for Bambu Lab PETG Basic[17]91 long term and 141 intermittent (extruded POM-C stock; converted from 195 °F and 285 °F)[3]
Thermal expansion (CTE)µm/m·KNot documented84.6 (extruded POM-C stock, ASTM D696; source states 4.7e-5 in/in/°F)[3]
Flammability / UL 94Flammable; no UL 94 rating published[1]UL 94 HB on extruded POM-C stock[3]
Environment & Chemical
UV resistance1–5Moderate — a season or two; the carbon fibre does not add UV stabilisation[23]Not documented
Chemical resistanceWithstands acids, alkalis, oils and UV exposure, as for unfilled PETG[23]Good chemical resistance, particularly to bases; Apium lists resistance to bases as a headline property[3][4]
Water / humidity resistance in service1–5Not documentedGood — minor absorption; 0.80 % water at saturation (ASTM D570, extruded stock)[3]
Food contactNot certified for food contact[23]Not documented
Biodegradability / compostabilityNot biodegradable[23]Not documented
RecyclabilityFibre-filled PETG is not accepted in household plastic collection[23]Not documented
Electrical & ESD propertiesSurface resistance above 10⁹ ohm/sq — carbon fibre at this loading is not static-dissipative (3DXTech)[5]Volume resistance 1e14 ohm-cm, dielectric strength 500 V/mil and dielectric constant 3.7 at 60 Hz on extruded stock (ASTM D257, D149, D150); Apium's filament grade adds antistatic agents[3][4]
Health & Safety
Fume toxicity1–5Moderate — measurable VOCs and UFPs, ventilation advised[24]Not documented
Ventilation / filtration requirement1–5Open a window / occasional ventilation[24]Not documented
Dust & fibre handling hazardCarbon fibre is bound in the matrix; sanding dust should not be inhaled[5]Not documented
Post-Processing
Sanding & machiningSands to a matte finish more readily than unfilled PETG[18]Easy to machine — Ensinger lists machinability as a headline property of POM-C stock[3]
Gluing & solvent weldingCyanoacrylate; no common solvent welds it[18]Not documented
Vapour / chemical smoothingNo practical vapour smoothing[18]Not documented
Support material pairingSupport for PLA or its own material (Bambu Lab)[1]Not documented
Dimensional accuracy & detailMatte finish hides layer lines; stringing is reduced against unfilled PETG[1]Not documented
Solvents & Solubility
Soluble inNo common workshop solvent; dichloromethane — a carcinogen — dissolves the matrix surface, 1,2-dichloroethane destroys it in a week.[25][26]Hexafluoroisopropanol dissolves it at room temperature; NMP and DMF only when hot. Laboratory reagents.[27]
Softened or crazed byAcetone (+16 % weight over 1 year at 23 °C), ethyl acetate, toluene and DMF swell and soften it; methanol crazes it.[25]Acids, oxidants, halogens and hot concentrated zinc chloride attack it; alcohols, ketones and esters do not.[27][28]
Solvent welding & smoothing agentDichloromethane reaches only the resin, so the fibre is left standing proud of the surface. Controlled carcinogen.[26]None — no solvent softens POM below its melting point, which is why it is bolted or heat-welded rather than glued.[27]

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. TECAFORM AH natural (POM-C) — stock shape properties Ensinger · 2026-08 · tds
  4. POM-C ESD 3D printing — material page Apium 3D Technologies · 2026-08 · doc
  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. ELEGOO product catalogue ELEGOO · 2026-08 · vendor
  14. 3DXTech product catalogue 3DXTech · 2026-08 · vendor
  15. 3DJAKE product catalogue 3DJAKE · 2026-08 · vendor
  16. igo3d product sitemap (17452 product URLs) igo3d · 2026-08 · vendor
  17. BambuLab PETG Basic vs Translucent vs PETG-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  18. PET and PETG — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  19. CARBONX PETG+CF — product page (print recommendations) 3DXTech · 2026-08 · doc
  20. Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
  21. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  22. Mechanical Properties of Additively Manufactured Polymeric Materials — PLA and PETG — For Biomechanical Applications Polymers 16(13):1868 · 2024-06 · paper
  23. PETG — material basics Polymaker Wiki · 2026-08 · doc
  24. 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
  25. Eastman Spectar copolyester — Chemical resistance (unstressed bars, 1 year at 23 °C) Eastman Chemical Company · 2026-08 · tds
  26. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc
  27. Resistance of Ultramid, Ultraform and Ultradur to chemicals (TI-KTU/AS-28 e) BASF · 2000-10 · tds
  28. Chemical resistance — resistance of Ensinger plastics to chemicals (DIN 50 014, 23/50) Ensinger · 2026-08 · tds