3D Printing Info

Filament comparison

POM vs PPA-CF

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

POM (acetal) guidePPA-CF (carbon-fibre polyphthalamide) guide

2 selected · all documented properties

Open these two in the interactive comparisonMore POM comparisonsMore PPA-CF comparisons
POM vs PPA-CF — documented properties and sources
PropertyPOM (acetal)ENGINEERINGPPA-CF (carbon-fibre polyphthalamide)PA
Market snapshot
Listing priceUSD/kg; dated snapshotsNot documented$84.99/kg median; $21.99–$266.67/kg across 7 dated product listings
Identity & Market
Base polymer / chemistryPolyoxymethylene, normally the copolymer POM-C. Apium's filament grade is POM-C with antistatic additives; no unfilled POM filament was found on sale[1][2]Polyphthalamide — semi-aromatic nylon — with 10–15 wt% chopped carbon fibre; Bambu Lab lists the composition as semi-aromatic nylon plus carbon fibre, Raise3D and Siraya Tech state 15 wt%, Flashforge 10 %[3][4][5][6]
Densityg/cm³1.41 (extruded POM-C stock)[1]1.15 (Raise3D) to 1.25 (Bambu Lab and IEMAI 3D), ISO 1183; Flashforge 1.21–1.23[3][4][5][7]
Typical priceUSD/kgNot documented1 kg-equivalent spools span 22–267; the middle of the market is about 85[8][9][10][11][12][13]
Price range across brandsUSD/kgNot documented22–267 across brands; CHCKX 22 on Amazon, IEMAI 3D 51, Siraya Tech 57 and 85, Bambu Lab 200 at 750 g, Raise3D 209, 3DXTech CarbonX HTN+CF 267 at 750 g[8][9][10][14][11][12][13]
Market availability1–5Special 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[2][15][16][17]Available from several mainstream brands[8][9][10][11][12]
Spool sizes & diametersNot documented1.75 mm; 750 g, 1 kg, 2 kg and 2.5 kg spools[3][10][12]
Typical applicationsGears, bushings, bearings, conveyor and food-machinery parts; Apium markets its POM-C ESD grade for semiconductor insulators, aerospace fasteners and sliding parts[1][2]Under-bonnet automotive brackets, jigs and end-use parts that must stay stiff above the 100 °C working ceiling of PA6-CF[4][5]
Diameter tolerance± mmNot documented0.05 (Bambu Lab and Siraya Tech, 1.75 mm)[3][6]
Printing Parameters
Nozzle temperature°CNot documented280–310 (Bambu Lab and CHCKX); 280–320 (Siraya Tech)[3][6][13]
Bed temperature°CNot documented100–120 (Bambu Lab and CHCKX); Siraya Tech runs cooler at 70–90[3][6][13]
Enclosure / chamber requirement1–5Not documentedEnclosure required (passive) — Bambu Lab specifies a 50–80 °C chamber and Siraya Tech requires an enclosure, while Flashforge states its LUVOCOM-based grade prints on machines with no heated chamber[3][5][10]
Recommended chamber temperature°CNot documented50–80 (Bambu Lab); specimens were printed at a 52 °C chamber and Bambu Lab notes 70–80 °C raises Z properties[3]
Part cooling fanNot documentedBambu Lab turns the part fan on; Siraya Tech runs it off[3][6]
Bed surface & adhesion aidNot documentedSmooth or textured PEI plate with a glue stick, or a PVP glue coating[3][6]
Maximum volumetric flow (mm³/s; see test conditions)mm³/sNot documented8–12 mm³/s at 300–320 °C (Siraya Tech)[6]
Overall printing difficulty1–5Not documentedAdvanced — enclosure, hardware upgrades, tuning; a 320 °C hot end and a hardened nozzle are the entry requirements[3][6]
Extruder requirementApium 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[2]Not documented
Hardware Wear & Reliability
Nozzle hardness required1–4Not documentedHardened steel required — Siraya Tech and CHCKX specify hardened steel or better, Raise3D warns brass wears quickly[4][6][13]
Abrasiveness1–5Not documentedHighly abrasive — standard CF/GF composites and glow fills[4][6]
Nozzle clog risk1–5Not documentedModerate — needs dry filament and a clean nozzle; Siraya Tech states nozzles below 0.4 mm will clog[6][10]
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Low (0.1-0.3 %) — extruded POM-C stock takes up 0.18 % in 24 h and 0.80 % at saturation (ASTM D570)[1]High (0.8–2 %) — 1.30 % saturated at 25 °C / 55 % RH for Bambu Lab and IEMAI 3D against 2.35 % for the same makers' PA6-CF, which is the whole reason to pay for PPA[3][7][18]
Equilibrium moisture content at ~50 % RH%Not documented1.30 saturated at 25 °C / 55 % RH (Bambu Lab and IEMAI 3D) against 2.35 for their PA6-CF; Siraya Tech 1.37 and 1.09 by ISO 62, Raise3D 0.6 by ISO 62 Method 1, Flashforge below 0.1 at 23 °C / 24 h[3][4][5][6][19][7][18]
Drying temperature & timeNot documented100–140 °C for 8–12 h (Bambu Lab, hotter is better within that range); Siraya Tech 100 °C for 4–6 h; Raise3D 80–100 °C for 6–12 h[3][4][6]
Storage requirementNot documentedSealed below 20 % RH with desiccant (Bambu Lab); Raise3D keeps the spool in a dry box throughout the print[3][4]
Mechanical Properties
Tensile strength (XY)MPa66.9 at break and 64.1 at yield (extruded POM-C stock, ASTM D638; converted from 9700 and 9300 psi)[1]95–168 (printed XY, ISO 527): Siraya Tech 95, Flashforge 108–112, Siraya Tech Core 112, Raise3D 122 conditioned and annealed, Bambu Lab and IEMAI 3D 168[3][4][5][6][19][7]
Young's modulusMPa2275 (extruded POM-C stock, ASTM D638; converted from 330,000 psi)[1]7100–11800 (printed XY): Flashforge 7100–8000, Raise3D and Siraya Tech 7800, Siraya Tech Core 9300, Bambu Lab and IEMAI 3D 11800[3][4][5][6][19][7]
Elongation at break%40 at break and 9 at yield (extruded POM-C stock, ASTM D638)[1]1.9–5 at break (printed XY): Raise3D 1.9, Siraya Tech 2, Siraya Tech Core 2.25, Bambu Lab and IEMAI 3D 3.2, Flashforge 3.5–5[3][4][5][6][19][7]
Flexural strengthMPa89.6 (extruded POM-C stock, ASTM D790; converted from 13,000 psi)[1]145–221 (printed XY, ISO 178): Siraya Tech 145, Siraya Tech Core 178, Raise3D 190, Bambu Lab and IEMAI 3D 208, Flashforge 210–221[3][4][5][6][19][7]
Flexural modulusMPa2758 (extruded POM-C stock, ASTM D790; converted from 400,000 psi)[1]6500–9860 (printed XY, ISO 178): Flashforge 6500–7000, Siraya Tech 6800, Raise3D 8510, Siraya Tech Core 8700, Bambu Lab and IEMAI 3D 9860[3][4][5][6][19][7]
Charpy impact, notchedkJ/m²Not documented6.5 notched Charpy XY (Bambu Lab and IEMAI 3D, ISO 179); Raise3D 7.8 and Siraya Tech 11 by ISO 179 without stating notched[3][4][6][7]
Other impact dataIzod 53 J/m on extruded POM-C stock, converted from 1.0 ft-lb/in[1]Bambu Lab and IEMAI 3D unnotched Charpy 41.7 kJ/m² XY against 4.3 in Z; Flashforge Izod 9–11 kJ/m² XY against 2.5–3 in Z[3][5][7]
Layer adhesion / Z tensileMPaNot documented57 printed Z (Bambu Lab and IEMAI 3D, ISO 527); Raise3D measures 30.2 by a custom mono-layer method[3][4][7]
Brittleness1–5Tough — absorbs impact, yields before breaking; extruded stock elongates 40 % before failing. No printed figure is published[1]Brittle — snaps with little warning; 2–3 % elongation at break is typical[3][4][6]
Hardness (scale-specific)Shore A / Shore D / RockwellRockwell 86 (and R120) — the source names only the R scale on extruded POM-C stock (ASTM D785)[1]Not documented
Creep resistance / sustained load1–5Not documentedGood — Flashforge cites outstanding creep resistance at high temperature and Raise3D high creep resistance, both against other nylons[4][5]
Elasticity / flexibility1–5Not documentedRigid[3]
Z strength as % of XY%Not documented34 (Bambu Lab and IEMAI 3D, Z against XY tensile, ISO 527)[3][7]
Wear resistance & frictionWear 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[1][2]Not documented
Thermal Properties
HDT at 0.45 MPa°C158 (extruded POM-C stock, ASTM D648 at 66 psi; converted from 316 °F)[1]188–227 (ISO 75 at 0.45 MPa): Raise3D 188, Flashforge 220, Bambu Lab and IEMAI 3D 227; Siraya Tech reaches 192–199 only after annealing, 84.5–97 unannealed[3][4][5][6][19][7]
HDT at 1.8 MPa°C110 (extruded POM-C stock, ASTM D648 at 264 psi; converted from 230 °F)[1]113–196 (ISO 75 at 1.8 MPa): Raise3D 113, Bambu Lab and IEMAI 3D 196; Siraya Tech reaches 119–126 only after annealing, 82.5–84 unannealed[3][4][6][19][7]
Glass transition (Tg)°CNot documented80 (Siraya Tech, ASTM D3418) to 85 (Bambu Lab and IEMAI 3D, DSC)[3][6][7]
Melting point / Vicat°C165 melting (extruded POM-C stock; converted from 329 °F)[1]Melting point 231 (Raise3D) to 258 (Bambu Lab and IEMAI 3D); Vicat softening 230–238 (ISO 306)[3][4][6][19][7]
Continuous service temperature°C91 long term and 141 intermittent (extruded POM-C stock; converted from 195 °F and 285 °F)[1]120 (Flashforge, IEC 60216, LUVOCOM PPA-CF)[5]
Annealing responseNot documentedBambu Lab anneals at 120–140 °C for 6–12 h; Raise3D at 80–100 °C for 8 h and warns of up to 0.5 % Z shrinkage. On Siraya Tech's grades annealing lifts HDT at 0.45 MPa from 84.5 to 192 °C while notched Charpy falls from 11 to 6.3 kJ/m²[3][4][6]
Thermal expansion (CTE)µm/m·K84.6 (extruded POM-C stock, ASTM D696; source states 4.7e-5 in/in/°F)[1]Not documented
Flammability / UL 94UL 94 HB on extruded POM-C stock[1]Flammable; Bambu Lab lists water, carbon oxides and nitrogen oxides as combustion products. No UL 94 rating is published for the filament grades surveyed[3]
Environment & Chemical
Chemical resistanceGood chemical resistance, particularly to bases; Apium lists resistance to bases as a headline property[1][2]Better than general nylon against weak acids, weak alkalis, most organic solvents and most oils and greases (Bambu Lab); not resistant to strong acids or strong alkalis[3]
Water / humidity resistance in service1–5Good — minor absorption; 0.80 % water at saturation (ASTM D570, extruded stock)[1]Good — minor absorption; 1.3 % saturated moisture is roughly half what PA6-CF takes up[3][18]
Electrical & ESD propertiesVolume 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[1][2]Flashforge's data sheet gives a surface resistance of 10³ Ω or below (IEC 60093) for its LUVOCOM-based PPA-CF — the carbon loading makes it conductive rather than merely dissipative[5]
Health & Safety
Dust & fibre handling hazardNot documentedChopped carbon fibre; dry sanding and cutting release respirable fibre-laden dust[20]
Post-Processing
Sanding & machiningEasy to machine — Ensinger lists machinability as a headline property of POM-C stock[1]Not documented
Support material pairingNot documentedBambu Lab pairs it with Support for PA/PET; Raise3D warns that PPA-CF used as its own support bonds permanently to the model once it takes up moisture, so supports must come off before annealing[3][4]
Solvents & Solubility
Soluble inHexafluoroisopropanol dissolves it at room temperature; NMP and DMF only when hot. Laboratory reagents.[21]Formic acid, phenol, m-cresol and hexafluoroisopropanol dissolve the matrix at 23 °C, leaving the fibre; laboratory reagents.[22]
Softened or crazed byAcids, oxidants, halogens and hot concentrated zinc chloride attack it; alcohols, ketones and esters do not.[21][23]Zinc chloride solutions stress-crack the nylon matrix, alcoholic calcium chloride dissolves it, mineral acids attack it.[22]
Solvent welding & smoothing agentNone — no solvent softens POM below its melting point, which is why it is bolted or heat-welded rather than glued.[21]None — nylon's only solvents (formic acid, phenol, HFIP) degrade the part, and the fibre blocks surface flow anyway.[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. TECAFORM AH natural (POM-C) — stock shape properties Ensinger · 2026-08 · tds
  2. POM-C ESD 3D printing — material page Apium 3D Technologies · 2026-08 · doc
  3. Bambu Filament Technical Data Sheet V1.0 — PPA-CF Bambu Lab · 2026-08 · tds
  4. Raise3D Industrial PPA CF Technical Data Sheet V2.0 Raise3D · 2022-04 · tds
  5. Flashforge PPA-CF Filament Technical Data Sheet (LUVOCOM PPA-CF, 10 % carbon fibre) Flashforge · 2026-08 · tds
  6. Siraya Tech Fibreheart PPA-CF Technical Data Sheet Siraya Tech · 2026-08 · tds
  7. IEMAI 3D CF-PPA Technical Data Sheet IEMAI 3D · 2025-04 · tds
  8. PPA-CF — Bambu Lab US Store Bambu Lab · 2026-08 · vendor
  9. Raise3D Industrial PPA CF Filament 1.75 mm (1 kg) — product listing MatterHackers · 2026-08 · vendor
  10. Fibreheart PPA-CF Filament — product page Siraya Tech · 2026-08 · vendor
  11. IEMAI 3D CF-PPA 3D Printing Filament — store page IEMAI 3D · 2026-08 · vendor
  12. CARBONX HTN+CF — product page 3DXTech · 2026-08 · vendor
  13. CHCKX PPA-CF 3D Printing Filament Matte Black 1 kg 1.75 mm 10 % Carbon Fiber — Amazon listing Amazon.com · 2026-08 · vendor
  14. Siraya Tech Fibreheart PPA-CF Core Filament — product page Siraya Tech · 2026-08 · vendor
  15. 3DJAKE product catalogue 3DJAKE · 2026-08 · vendor
  16. igo3d product sitemap (17452 product URLs) igo3d · 2026-08 · vendor
  17. Printed Solid product catalogue Printed Solid · 2026-08 · vendor
  18. Bambu Filament Technical Data Sheet V3.0 — PA6-CF Bambu Lab · 2026-08 · tds
  19. Siraya Tech Fibreheart PPA-CF Core Technical Data Sheet Siraya Tech · 2026-08 · tds
  20. PET-CF / PPA-CF / PPS-CF / PA6-CF carbon fibre filament usage guide Bambu Lab Wiki · 2026-08 · doc
  21. Resistance of Ultramid, Ultraform and Ultradur to chemicals (TI-KTU/AS-28 e) BASF · 2000-10 · tds
  22. Ultramid Nylon Chemical Resistance guide (unmodified PA6 B27E and PA66 A27E) BASF · 2026-08 · tds
  23. Chemical resistance — resistance of Ensinger plastics to chemicals (DIN 50 014, 23/50) Ensinger · 2026-08 · tds