3D Printing Info

Filament comparison

PA-CF ESD vs PPA-CF

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

ESD-safe CF nylon guidePPA-CF (carbon-fibre polyphthalamide) guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PA-CF ESD comparisonsMore PPA-CF comparisons
PA-CF ESD vs PPA-CF — documented properties and sources
PropertyESD-safe CF nylonPAPPA-CF (carbon-fibre polyphthalamide)PA
Market snapshot
Listing priceUSD/kg; dated snapshots$129.98/kg median; $129.98–$129.98/kg across 1 dated product listings$84.99/kg median; $21.99–$266.67/kg across 7 dated product listings
Identity & Market
Base polymer / chemistryCarbon-filled polyamide compounded to a static-dissipative resistivity — Polymaker's grade uses a PA612 matrix[1]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 %[2][3][4][5]
Densityg/cm³1.10 (ISO 1183)[1]1.15 (Raise3D) to 1.25 (Bambu Lab and IEMAI 3D), ISO 1183; Flashforge 1.21–1.23[2][3][4][6]
Typical priceUSD/kg1 kg-equivalent spools cluster near 130[7]1 kg-equivalent spools span 22–267; the middle of the market is about 85[8][9][10][11][12][13]
Price range across brandsUSD/kg130 at Polymaker's 0.5 kg pricing[7]22–267 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[7]Available from several mainstream brands[8][9][10][11][12]
Spool sizes & diameters1.75 mm; 0.5 kg spools[7]1.75 mm; 750 g, 1 kg, 2 kg and 2.5 kg spools[2][10][12]
Typical applicationsElectronics jigs and trays that also need nylon toughness and heat resistance[1]Under-bonnet automotive brackets, jigs and end-use parts that must stay stiff above the 100 °C working ceiling of PA6-CF[3][4]
Diameter tolerance± mmNot documented0.05 (Bambu Lab and Siraya Tech, 1.75 mm)[2][5]
Printing Parameters
Nozzle temperature°CNot documented280–310 (Bambu Lab and CHCKX); 280–320 (Siraya Tech)[2][5][13]
Bed temperature°CNot documented100–120 (Bambu Lab and CHCKX); Siraya Tech runs cooler at 70–90[2][5][13]
Enclosure / chamber requirement1–5Enclosure required (passive)[15]Enclosure 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[2][4][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[2]
Part cooling fanNot documentedBambu Lab turns the part fan on; Siraya Tech runs it off[2][5]
Bed surface & adhesion aidPEI sheet with a glue stick, or a dedicated adhesive such as Magigoo[16][15]Smooth or textured PEI plate with a glue stick, or a PVP glue coating[2][5]
Maximum volumetric flow (mm³/s; see test conditions)mm³/sNot documented8–12 mm³/s at 300–320 °C (Siraya Tech)[5]
Bed-adhesion difficulty1–5Needs a specific surface plus adhesive[16]Not documented
Stringing / oozing tendency1–5Moderate — retraction tuning needed[15]Not documented
Overall printing difficulty1–5Expert / industrial hardware only[15][17]Advanced — enclosure, hardware upgrades, tuning; a 320 °C hot end and a hardened nozzle are the entry requirements[2][5]
Hardware Wear & Reliability
Nozzle hardness required1–4Hardened steel required — Polymaker measures brass nozzle life at about 9 h on PA612-ESD and recommends hardened steel or ruby[1]Hardened steel required — Siraya Tech and CHCKX specify hardened steel or better, Raise3D warns brass wears quickly[3][5][13]
Abrasiveness1–5Highly abrasive — carbon-filled nylon composite; Polymaker puts brass nozzle life at roughly 9 h on PA612-ESD[1]Highly abrasive — standard CF/GF composites and glow fills[3][5]
Nozzle clog risk1–5High — jams from moisture, heat creep or particles[17]Moderate — needs dry filament and a clean nozzle; Siraya Tech states nozzles below 0.4 mm will clog[5][10]
Heat-creep / jam sensitivity1–5Moderate — good heatbreak cooling needed[16]Not documented
Hotend requirementMay require an all-metal hot end (Simplify3D)[16]Not documented
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5High (0.8–2 %) — the PA612 matrix sits between PA6 and PA12[18][19]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[2][6][20]
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[2][3][4][5][21][6][20]
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[2][3][5]
Effect of moisture on strengthPolymaker publishes dry and wet printed blocks for PA612-ESD itself: at 4.64 % moisture tensile falls 84.3 → 73.6 MPa and modulus 4294 → 3731 MPa[1][19]Not documented
Storage requirementSealed below 20 % RH with desiccant[17]Sealed below 20 % RH with desiccant (Bambu Lab); Raise3D keeps the spool in a dry box throughout the print[2][3]
Hydrolysis at melt temperaturePolymaker specifies an 80–100 °C dry and storage below 20 % RH; no molecular-weight loss figure is published, and the wet data it does publish is conditioning rather than melt hydrolysis[22][23]Not documented
Mechanical Properties
Tensile strength (XY)MPa84.3 ± 2.3 printed XY dry (annealed 100 °C/16 h), 73.6 ± 2.3 conditioned to 4.64 % moisture, ISO 527[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[2][3][4][5][21][6]
Young's modulusMPa4293.7 ± 116.4 printed XY dry and 3730.8 ± 156.2 conditioned, ISO 527[1]7100–11800 (printed XY): Flashforge 7100–8000, Raise3D and Siraya Tech 7800, Siraya Tech Core 9300, Bambu Lab and IEMAI 3D 11800[2][3][4][5][21][6]
Elongation at break%3.0 ± 0.1 printed XY dry and 4.2 ± 0.4 conditioned, ISO 527[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[2][3][4][5][21][6]
Flexural strengthMPaNot documented145–221 (printed XY, ISO 178): Siraya Tech 145, Siraya Tech Core 178, Raise3D 190, Bambu Lab and IEMAI 3D 208, Flashforge 210–221[2][3][4][5][21][6]
Flexural modulusMPaNot documented6500–9860 (printed XY, ISO 178): Flashforge 6500–7000, Siraya Tech 6800, Raise3D 8510, Siraya Tech Core 8700, Bambu Lab and IEMAI 3D 9860[2][3][4][5][21][6]
Charpy impact, notchedkJ/m²5.9 ± 0.4 printed XY dry and 4.9 ± 0.3 conditioned, ISO 179 notched[1]6.5 notched Charpy XY (Bambu Lab and IEMAI 3D, ISO 179); Raise3D 7.8 and Siraya Tech 11 by ISO 179 without stating notched[2][3][5][6]
Other impact dataCharpy unnotched 24.1 ± 2.4 printed XY and 4.5 ± 0.2 printed Z (ISO 179)[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[2][4][6]
Layer adhesion / Z tensileMPa21.5 ± 2.7 printed Z dry — only a quarter of XY, the most anisotropic nylon composite here; 19.2 ± 1.6 conditioned[1]57 printed Z (Bambu Lab and IEMAI 3D, ISO 527); Raise3D measures 30.2 by a custom mono-layer method[2][3][6]
Brittleness1–5Brittle — snaps with little warning; elongation 3.0 % in XY and 1.4 % in Z[1]Brittle — snaps with little warning; 2–3 % elongation at break is typical[2][3][5]
Hardness (scale-specific)Shore A / Shore D / RockwellRockwell M88 / R117 on extruded PA66-GF30 stock (ASTM D785); no figure is published for a conductive carbon-filled nylon filament[24]Not documented
Creep resistance / sustained load1–5Good. Ensinger rates its PA66-CF30 compound for sustained static and dynamic load at 110 °C continuous service; the PA612 matrix here still takes up 4.64 % moisture at conditioning, which softens it[25][1]Good — Flashforge cites outstanding creep resistance at high temperature and Raise3D high creep resistance, both against other nylons[3][4]
Fatigue / repeated-flex resistance1–5Good. Ensinger states carbon-filled PA66 compounds have improved fatigue strength in tension, flexure and compression[25]Not documented
Elasticity / flexibility1–5Rigid[1]Rigid[2]
Z strength as % of XY%26 (printed Z against XY tensile)[1]34 (Bambu Lab and IEMAI 3D, Z against XY tensile, ISO 527)[2][6]
Thermal Properties
HDT at 0.45 MPa°C157.0 (ISO 75, 0.45 MPa)[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[2][3][4][5][21][6]
HDT at 1.8 MPa°C125.4 (ISO 75, 1.8 MPa)[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[2][3][5][21][6]
Glass transition (Tg)°C41.8 (DSC)[1]80 (Siraya Tech, ASTM D3418) to 85 (Bambu Lab and IEMAI 3D, DSC)[2][5][6]
Melting point / Vicat°C187.3 melting (DSC); Vicat 190.0 (ISO 306)[1]Melting point 231 (Raise3D) to 258 (Bambu Lab and IEMAI 3D); Vicat softening 230–238 (ISO 306)[2][3][5][21][6]
Continuous service temperature°CNot documented120 (Flashforge, IEC 60216, LUVOCOM PPA-CF)[4]
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[2][3][5]
Flammability / UL 94Flammable; no UL 94 rating published for the grades surveyed[22]Flammable; Bambu Lab lists water, carbon oxides and nitrogen oxides as combustion products. No UL 94 rating is published for the filament grades surveyed[2]
Environment & Chemical
UV resistance1–5Months outdoors before embrittlement — unstabilised polyamide yellows under UV[15]Not documented
Chemical resistanceWithstands oils, fuels and alkalis[15]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[2]
Water / humidity resistance in service1–5Not documentedGood — minor absorption; 1.3 % saturated moisture is roughly half what PA6-CF takes up[2][20]
Food contactNot food-contact certified as filament[15]Not documented
Biodegradability / compostabilityNot biodegradable[15]Not documented
RecyclabilityNot accepted in household plastic collection[15]Not documented
Electrical & ESD propertiesStatic-dissipative — the reason the grade exists; Polymaker's insulating nylon composites sit above 10¹² ohm by contrast[1][18]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[4]
Health & Safety
Fume toxicity1–5Moderate — measurable VOCs and UFPs, ventilation advised[26]Not documented
VOC emission rateµg/minUp to 180 caprolactam, the dominant VOC from nylon and the largest single-VOC rate in the study[26]Not documented
Ultrafine-particle emission rateparticles/min≈2 × 10⁸ median for nylon — low for particles despite the highest VOC mass measured[26]Not documented
Hazardous species emittedCaprolactam, at up to 180 µg/min from nylon filament[26]Not documented
Ventilation / filtration requirement1–5Ventilated room or enclosure recommended[26]Not documented
Dust & fibre handling hazardFibre is bound in the matrix; sanding dust should not be inhaled[22]Chopped carbon fibre; dry sanding and cutting release respirable fibre-laden dust[27]
Post-Processing
Sanding & machiningSands poorly — gums rather than powders[16]Not documented
Gluing & solvent weldingCyanoacrylate; no common solvent welds polyamide[16]Not documented
Vapour / chemical smoothingNo practical vapour smoothing[16]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[2][3]
Solvents & Solubility
Soluble inFormic acid, phenol, m-cresol and hexafluoroisopropanol dissolve the matrix at 23 °C, leaving the fibre; laboratory reagents.[28]Formic acid, phenol, m-cresol and hexafluoroisopropanol dissolve the matrix at 23 °C, leaving the fibre; laboratory reagents.[28]
Softened or crazed byZinc chloride solutions stress-crack the nylon matrix, alcoholic calcium chloride dissolves it, mineral acids attack it.[28]Zinc chloride solutions stress-crack the nylon matrix, alcoholic calcium chloride dissolves it, mineral acids attack it.[28]
Solvent welding & smoothing agentNone — nylon's only solvents (formic acid, phenol, HFIP) degrade the part, and the fibre blocks surface flow anyway.[28]None — nylon's only solvents (formic acid, phenol, HFIP) degrade the part, and the fibre blocks surface flow anyway.[28]

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 PA612-ESD Technical Data Sheet V1.0 Polymaker · 2025-06 · tds
  2. Bambu Filament Technical Data Sheet V1.0 — PPA-CF Bambu Lab · 2026-08 · tds
  3. Raise3D Industrial PPA CF Technical Data Sheet V2.0 Raise3D · 2022-04 · tds
  4. Flashforge PPA-CF Filament Technical Data Sheet (LUVOCOM PPA-CF, 10 % carbon fibre) Flashforge · 2026-08 · tds
  5. Siraya Tech Fibreheart PPA-CF Technical Data Sheet Siraya Tech · 2026-08 · tds
  6. IEMAI 3D CF-PPA Technical Data Sheet IEMAI 3D · 2025-04 · tds
  7. Polymaker product catalogue Polymaker · 2026-08 · vendor
  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. PA (Nylon) — material basics Polymaker Wiki · 2026-08 · doc
  16. Nylon — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  17. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  18. Fiberon PA612-CF15 Technical Data Sheet V1.1 Polymaker · 2024-12 · tds
  19. Moisture Conditioning — effect on printed nylon properties Polymaker Wiki · 2026-08 · doc
  20. Bambu Filament Technical Data Sheet V3.0 — PA6-CF Bambu Lab · 2026-08 · tds
  21. Siraya Tech Fibreheart PPA-CF Core Technical Data Sheet Siraya Tech · 2026-08 · tds
  22. Fiberon PA6-CF20 Technical Data Sheet V1.1 Polymaker · 2024-12 · tds
  23. PolyMide CoPA Technical Data Sheet V5.4 (dry and wet status blocks) Polymaker · 2024-11 · tds
  24. TECAMID 66 GF30 black (PA66-GF30) — stock shape properties Ensinger · 2026-08 · tds
  25. TECACOMP PA66 CF30 black — injection-moulding compound Ensinger · 2026-08 · tds
  26. 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
  27. PET-CF / PPA-CF / PPS-CF / PA6-CF carbon fibre filament usage guide Bambu Lab Wiki · 2026-08 · doc
  28. Ultramid Nylon Chemical Resistance guide (unmodified PA6 B27E and PA66 A27E) BASF · 2026-08 · tds