3D Printing Info

Filament comparison

PEEK-CF vs POM

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

Fibre-reinforced PEEK guidePOM (acetal) guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PEEK-CF comparisonsMore POM comparisons
PEEK-CF vs POM — documented properties and sources
PropertyFibre-reinforced PEEKHIGHTEMPPOM (acetal)ENGINEERING
Market snapshot
Listing priceUSD/kg; dated snapshots$597.50/kg median; $448.00–$695.00/kg across 5 dated product listingsNot documented
Identity & Market
Base polymer / chemistryShort-fibre reinforced PEEK. 3DXTech's CarbonX grade is nominally 10 wt% carbon and its FibreX grade 20 wt% glass; LEHVOSS Luvocom 3F PEEK CF 9676 is 15 wt% carbon; Ensinger's machining stock runs to 30 wt% carbon[1][2][3][4]Polyoxymethylene, normally the copolymer POM-C. Apium's filament grade is POM-C with antistatic additives; no unfilled POM filament was found on sale[5][6]
Densityg/cm³1.39 (ISO 1183)[1]1.41 (extruded POM-C stock)[5]
Typical priceUSD/kg1 kg-equivalent spools span 448–972; the middle of the market is about 598[2][3][7]Not documented
Price range across brandsUSD/kg448-972 across formats and filler types; IEMAI 3D CF-PEEK and GF-PEEK 448 at 1 kg, 3DXTech CarbonX PEEK+CF10 598 at 2 kg and FibreX PEEK+GF20 695 at 1 kg, Luvocom 3F PEEK CF 9676 648 at 2 kg[2][3][7][8]Not documented
Market availability1–5Niche, a handful of specialist brands[2][3]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[6][9][10][11]
Spool sizes & diameters1.75 and 2.85 mm; 200 g to 2 kg spools[2][3]Not documented
Typical applicationsStiff aerospace and oil-and-gas parts where PEEK alone is not rigid enough[1]Gears, bushings, bearings, conveyor and food-machinery parts; Apium markets its POM-C ESD grade for semiconductor insulators, aerospace fasteners and sliding parts[5][6]
Printing Parameters
Enclosure / chamber requirement1–5Actively heated chamber required[12][13]Not documented
Warping tendency1–5Moderate — needs adhesion aid or draught shield; the fibre cuts PEEK's crystallisation shrinkage[1]Not documented
Overall printing difficulty1–5Expert / industrial hardware only[12][13]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[6]
Hardware Wear & Reliability
Nozzle hardness required1–4Hardened steel required[1]Not documented
Abrasiveness1–5Highly abrasive — standard CF composite[1]Not documented
Nozzle clog risk1–5High — jams from moisture, heat creep or particles; 3DXTech adds a hardened 0.4 mm minimum nozzle and 0.25 mm layers to the mandatory 120 °C pre-dry[14][15]Not documented
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Not documentedLow (0.1-0.3 %) — extruded POM-C stock takes up 0.18 % in 24 h and 0.80 % at saturation (ASTM D570)[5]
Equilibrium moisture content at ~50 % RH%0.06 in 24 h on extruded CF30 stock (ASTM D570)[4]Not documented
Effect of moisture on strengthNo dry-versus-conditioned figures are published; 3DXTech mandates a 120 °C, 4 h pre-dry before every print because trapped water flashes to steam at these nozzle temperatures[14]Not documented
Mechanical Properties
Tensile strength (XY)MPa105 at break (printed XY, ISO 527, CF10); 121 at yield on extruded CF30 stock (ASTM D638)[1][4]66.9 at break and 64.1 at yield (extruded POM-C stock, ASTM D638; converted from 9700 and 9300 psi)[5]
Young's modulusMPa8100 (printed XY, ISO 527, CF10) — more than double unfilled PEEK; 6343 on extruded CF30 stock (ASTM D638)[1][4]2275 (extruded POM-C stock, ASTM D638; converted from 330,000 psi)[5]
Elongation at break%3 at break (printed XY, ISO 527), against 28 for unfilled PEEK[1][16]40 at break and 9 at yield (extruded POM-C stock, ASTM D638)[5]
Flexural strengthMPa136 (printed XY, ISO 178, CF10); 193 on extruded CF30 stock (ASTM D790)[1][4]89.6 (extruded POM-C stock, ASTM D790; converted from 13,000 psi)[5]
Flexural modulusMPa8300 (printed XY, ISO 178, CF10); 7171 on extruded CF30 stock (ASTM D790)[1][4]2758 (extruded POM-C stock, ASTM D790; converted from 400,000 psi)[5]
Other impact dataIzod notched 61.9 J/m on extruded CF30 stock, converted from 1.16 ft-lb/in (ASTM D256)[4]Izod 53 J/m on extruded POM-C stock, converted from 1.0 ft-lb/in[5]
Brittleness1–5Brittle — snaps with little warning; elongation falls from 28 % to 3 %[1][16]Tough — absorbs impact, yields before breaking; extruded stock elongates 40 % before failing. No printed figure is published[5]
Hardness (scale-specific)Shore A / Shore D / RockwellRockwell M107 on extruded PEEK-CF30 stock (ASTM D785), against M100 unfilled[4][17]Rockwell 86 (and R120) — the source names only the R scale on extruded POM-C stock (ASTM D785)[5]
Creep resistance / sustained load1–5Excellent — holds load for years. Ensinger rates carbon-fibre PEEK stock as very highly creep resistant and specifies 260 °C continuous service[4]Not documented
Fatigue / repeated-flex resistance1–5Good. Victrex rates PEEK for long-term fatigue as well as creep; the fibre cuts elongation at break from 28 % to 3 %, which limits repeated large-strain flexing[18][1][16]Not documented
Elasticity / flexibility1–5Rigid[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[5][6]
Thermal Properties
HDT at 0.45 MPa°C265 (printed XY, ISO 75 at 0.45 MPa, CarbonX PEEK+CF10) against 140 for unfilled PEEK[1][16]158 (extruded POM-C stock, ASTM D648 at 66 psi; converted from 316 °F)[5]
HDT at 1.8 MPa°C316 on extruded CF30 stock, converted from 600 °F at 264 psi (ASTM D648)[4]110 (extruded POM-C stock, ASTM D648 at 264 psi; converted from 230 °F)[5]
Glass transition (Tg)°C143 (DSC, CarbonX PEEK+CF10) — the fibre does not move the glass transition[1]Not documented
Melting point / Vicat°C334 melting on extruded CF30 stock, converted from 633 °F[4]165 melting (extruded POM-C stock; converted from 329 °F)[5]
Continuous service temperature°C260 long-term on extruded CF30 stock, converted from 500 °F; 300 short term[4]91 long term and 141 intermittent (extruded POM-C stock; converted from 195 °F and 285 °F)[5]
Thermal expansion (CTE)µm/m·K14.4 (extruded PEEK-CF30 stock, ASTM D696; source states 0.80e-5 in/in/°F) — about a third of unfilled PEEK[4][17]84.6 (extruded POM-C stock, ASTM D696; source states 4.7e-5 in/in/°F)[5]
Flammability / UL 94UL 94 V-0 on the base resin; Ensinger lists extruded PEEK-CF30 stock as inherently flame resistant[16][4]UL 94 HB on extruded POM-C stock[5]
Environment & Chemical
Chemical resistanceNot documentedGood chemical resistance, particularly to bases; Apium lists resistance to bases as a headline property[5][6]
Water / humidity resistance in service1–5Not documentedGood — minor absorption; 0.80 % water at saturation (ASTM D570, extruded stock)[5]
Electrical & ESD propertiesSurface resistance above 10⁹ ohm/sq — not static-dissipative (ASTM D257)[1]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[5][6]
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[19]Not documented
Ventilation / filtration requirement1–5Ventilated room or enclosure recommended[19]Not documented
Dust & fibre handling hazardCarbon fibre is bound in the matrix; sanding dust should not be inhaled[1]Not documented
Post-Processing
Sanding & machiningNot documentedEasy to machine — Ensinger lists machinability as a headline property of POM-C stock[5]
Solvents & Solubility
Soluble in95–98 wt% sulphuric acid dissolves the matrix at 40–70 °C and leaves the fibre. Nothing else touches PEEK.[20][21]Hexafluoroisopropanol dissolves it at room temperature; NMP and DMF only when hot. Laboratory reagents.[22]
Softened or crazed byConcentrated nitric, hydrofluoric, hydrobromic and hydriodic acids attack it; DCM, DMSO and THF swell thin-walled sections.[23][21]Acids, oxidants, halogens and hot concentrated zinc chloride attack it; alcohols, ketones and esters do not.[22][21]
Solvent welding & smoothing agentNone — no solvent softens PEEK, so parts are joined thermally or mechanically, never chemically.[23][21]None — no solvent softens POM below its melting point, which is why it is bolted or heat-welded rather than glued.[22]

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. CarbonX Carbon Fiber PEEK Technical Data Sheet v3 3DXTech · 2026-08 · tds
  2. 3DXTech product catalogue 3DXTech · 2026-08 · vendor
  3. 3D4Makers product catalogue 3D4Makers · 2026-08 · vendor
  4. TECAPEEK CF30 black (PEEK-CF30) — stock shape properties Ensinger · 2026-08 · tds
  5. TECAFORM AH natural (POM-C) — stock shape properties Ensinger · 2026-08 · tds
  6. POM-C ESD 3D printing — material page Apium 3D Technologies · 2026-08 · doc
  7. IEMAI 3D CF-PEEK 3D Printing Filament — store page IEMAI 3D · 2026-08 · vendor
  8. IEMAI 3D GF-PEEK 3D Printing Filament — store page IEMAI 3D · 2026-08 · vendor
  9. 3DJAKE product catalogue 3DJAKE · 2026-08 · vendor
  10. igo3d product sitemap (17452 product URLs) igo3d · 2026-08 · vendor
  11. Printed Solid product catalogue Printed Solid · 2026-08 · vendor
  12. Prusament PEI 1010 Technical Datasheet v1.0 Prusa Polymers · 2024-09 · tds
  13. Prusament PEI 1010 — material page Prusa Polymers · 2026-08 · doc
  14. CARBONX PEEK+CF10 — product page (print recommendations) 3DXTech · 2026-08 · doc
  15. Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
  16. ThermaX PEEK Technical Data Sheet v3 3DXTech · 2026-08 · tds
  17. TECAPEEK natural (PEEK) — stock shape properties Ensinger · 2026-08 · tds
  18. PEEK polymers — product overview Victrex · 2026-08 · doc
  19. 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
  20. The Effects of Sulfonated Poly(ether ether ketone) Ion Exchange Preparation Conditions on Membrane Properties Yee, Zhang & Ladewig, Membranes 3(3) 182–195 · 2013-07 · paper
  21. Chemical resistance — resistance of Ensinger plastics to chemicals (DIN 50 014, 23/50) Ensinger · 2026-08 · tds
  22. Resistance of Ultramid, Ultraform and Ultradur to chemicals (TI-KTU/AS-28 e) BASF · 2000-10 · tds
  23. What solvents are not compatible with PEEK? — fluidics technical FAQ IDEX Health & Science · 2026-08 · doc