3D Printing InfoFilament comparison
PC vs PC-CF
Compare printing settings, strength, heat resistance, dated prices and sources.
2 selected · all documented properties
| Property | Polycarbonate (PC)PC | Carbon-fibre PC (PC-CF)PC |
|---|---|---|
| Market snapshot | ||
| Listing priceUSD/kg; dated snapshots | $39.99/kg median; $29.99–$92.00/kg across 9 dated product listings | $62.58/kg median; $34.99–$117.33/kg across 6 dated product listings |
| Identity & Market | ||
| Base polymer / chemistry | Bisphenol-A polycarbonate — an amorphous engineering thermoplastic[1][2] | Polycarbonate reinforced with chopped carbon fibre[3][4] |
| Densityg/cm³ | 1.19 (Polymaker) to 1.22 (Prusament), ISO 1183; Bambu Lab 1.20; Stratasys specific gravity 1.20 (ASTM D792)[1][5][6][7] | 1.22 (Prusament) and 1.36 (3DXTech), ISO 1183[3][4] |
| Typical priceUSD/kg | 1 kg spools cluster near 40[6][8][9] | 1 kg-equivalent spools span 35–117; the middle of the market is about 63[9][10][11][12][13] |
| Price range across brandsUSD/kg | 30–92 across brands; Polymaker PolyLite 30, Bambu Lab 40, Polymaker PolyMax 52, Prusament 59, 3DXTech ezPC 64 and 3DXMAX PC 92[8][6][9][11] | 35–117 across brands; Ambrosia 35, IEMAI 39, YXPOLYER 55, Spectrum PC CF 70, Prusament 94, 3DXTech 117[9][10][11][12][13] |
| Market availability1–5 | Available from several mainstream brands[6][8][11][9] | Available from several mainstream brands[9][11][14] |
| Spool sizes & diameters | 1.75 and 2.85 mm; 0.5, 0.75, 0.9, 1 and 3 kg spools[8][11][9] | 1.75 and 2.85 mm; 0.75, 0.8 and 1 kg spools[9][11] |
| Typical applications | Light guides, lenses, under-bonnet automotive parts and impact-loaded housings that must hold shape above 110 °C[2][1] | Stiff high-temperature structural parts — jigs, drone frames and under-bonnet brackets[3][4] |
| Diameter tolerance± mm | ±0.03 (Prusament PC Blend)[5] | ±0.04 (Prusament PC Blend Carbon Fiber)[3] |
| Printing Parameters | ||
| Nozzle temperature°C | 250–280 across brands; Prusament 275 ± 10, Bambu Lab 260–280, Polymaker 250–270. Polymaker's material guide gives a wider 260–310 for PC and its composites[5][6][1][2] | 285 ± 10 (Prusament)[3] |
| Bed temperature°C | 90–115; Prusament 110 ± 10, Bambu Lab 90–110, Polymaker 90–105[5][6][1] | 110 ± 10 (Prusament)[3] |
| Enclosure / chamber requirement1–5 | Enclosure required (passive) — Polymaker specifies a 70–100 °C chamber, Bambu Lab 45–60 °C and rules out its P1P and A-series machines[1][6][15] | Enclosure required (passive)[3][15] |
| Recommended chamber temperature°C | 70–100 (Polymaker); 45–60 (Bambu Lab)[1][6] | Not documented |
| Part cooling fan | Off or very low — Polymaker specifies off, Prusament 20 % within a 0–30 % range, Bambu Lab 0–60 %[1][5][6] | Off — Prusa allows 0–20 % and warns cooling significantly reduces interlayer adhesion[3] |
| Bed surface & adhesion aid | Textured PEI with glue when needed (Polymaker); smooth or textured PEI (Bambu Lab)[1][16] | PEI with a glue stick or a commercial adhesive[17] |
| Maximum volumetric flow (mm³/s; see test conditions)mm³/s | 24 at Bambu Lab's 300 mm/s cap on a 0.4 mm nozzle at 0.2 mm layer; Polymaker allows 50–200 mm/s and its material guide advises 30–60 for layer adhesion[6][1][2][18] | Not documented |
| Warping tendency1–5 | Severe — heated chamber needed[1][2][15] | High — enclosure needed for reliable large parts; the fibre reduces warping against unfilled PC[3][15] |
| Bed-adhesion difficulty1–5 | Needs a specific surface plus adhesive[1][15] | Needs a specific surface plus adhesive[17][2] |
| Stringing / oozing tendency1–5 | Moderate — retraction tuning needed[2] | Moderate — retraction tuning needed; Polymaker flags stringing as a common PC problem[2] |
| Overall printing difficulty1–5 | Advanced — enclosure, hardware upgrades, tuning[2][15] | Advanced — enclosure, hardware upgrades, tuning; hardened nozzle mandatory[15][3] |
| Extruder requirement | All-metal hotend rated to 300 °C; Polymaker advises larger nozzles and high chamber temperatures to improve bonding[2] | Not documented |
| Hardware Wear & Reliability | ||
| Nozzle hardness required1–4 | Brass fine indefinitely[15] | Hardened steel required[15] |
| Abrasiveness1–5 | Non-abrasive[1] | Highly abrasive — standard CF composite[15] |
| Nozzle clog risk1–5 | Moderate — needs dry filament and a clean nozzle[2] | High — jams from moisture, heat creep or particles; PC already absorbs water from the air and 3DXTech adds a hardened 0.4 mm minimum nozzle, 0.25 mm layers and a 120 °C pre-dry[19][17][20] |
| Heat-creep / jam sensitivity1–5 | Slightly sensitive[17] | Slightly sensitive[17] |
| Hotend requirement | All-metal hot end required (Simplify3D); Polymaker advises a hot end rated above 300 °C[17][2] | All-metal hot end required (Simplify3D)[17] |
| Moisture Behaviour | ||
| Moisture absorption (hygroscopicity)1–5 | Low — 0.25 % saturated at 25 °C / 55 % RH (Bambu Lab); Prusa measures 0.15 % after 7 days at 22 % RH. Polymaker nonetheless calls PC highly hygroscopic in service[6][5][2] | Low (0.1–0.3 %) — the PC matrix takes up 0.15–0.25 % and 3DXTech specifies a 120 °C, 4 h pre-dry[6][5][19] |
| Equilibrium moisture content at ~50 % RH% | 0.25 saturated at 25 °C / 55 % RH (Bambu Lab); 0.15 after 7 days at 24 °C / 22 % RH (Prusa)[6][5] | 0.11 after 7 days at 24 °C / 22 % RH (Prusa Polymers)[3] |
| Drying temperature & time | 80 °C for 8 h (Bambu Lab); 75 °C for 6 h (Polymaker); 70–80 °C for 6–8 h (Polymaker material guide)[6][1][2] | Not documented |
| Symptoms when wet | Bubbling and popping at the nozzle, stringing, rough surface and weak layers[21] | Bubbling and popping at the nozzle, stringing and a rough surface[21] |
| Effect of moisture on strength | No dry-versus-conditioned figures are published. Polymaker calls PC highly hygroscopic and requires a 70–80 °C dry for 6–8 h; run wet, the loss shows as surface defects and poor layer adhesion[2][21] | No dry-versus-conditioned figures are published. Polymaker calls PC highly hygroscopic and requires a 70–80 °C dry for 6–8 h; run wet, the loss shows as surface defects and poor layer adhesion[2][21] |
| Storage requirement | Airtight containers with desiccant to prevent reabsorption[2] | Airtight containers with desiccant to prevent reabsorption[2] |
| Mechanical Properties | ||
| Tensile strength (XY)MPa | 53.4 (PolyMax) to 69.1 (PolyLite) printed XY, ISO 527; Bambu Lab 62 +/- 2 and Prusament 63 +/- 1 at yield; Stratasys 62.3-64.6 at yield printed XZ, ASTM D638 (its PC White table duplicates the Antero 840CN03 figures and was not used)[1][22][6][5][23][7] | 64 ± 3 printed horizontal and 70 ± 3 printed vertical at yield, ISO 527-1 (Prusament); 3DXTech quotes 73 at break[3][4] |
| Young's modulusMPa | 2110 (Bambu Lab) to 2497 (PolyLite) printed XY, ISO 527; Prusament 1900, 3DXTech 2180[6][1][5][23] | 2600 printed horizontal and 3200 printed vertical, ISO 527-1 (Prusament); 3DXTech quotes 6980[3][4] |
| Elongation at break% | 3.8 (Bambu Lab) to 4.8 (PolyLite) at break, printed XY, ISO 527; 3DXTech quotes 14 at break, Prusament 5.8 at yield[6][1][23][5] | 4.6 at yield printed horizontal (Prusament); 3DXTech quotes 2.1 at break[3][4] |
| Flexural strengthMPa | 81.3 (PolyMax) to 108 (Bambu Lab) printed XY, ISO 178; Prusament 88 ± 1, PolyLite 106.1[22][6][5][1] | 94 ± 3 printed horizontal and 130 ± 2 printed vertical, ISO 178 (Prusament); 3DXTech quotes 85[3][4] |
| Flexural modulusMPa | 2050 (PolyMax) to 2640 (PolyLite) printed XY, ISO 178; Prusament 2100[22][1][5] | 3500 printed horizontal and 4200 printed vertical, ISO 178 (Prusament); 3DXTech quotes 6540[3][4] |
| Charpy impact, notchedkJ/m² | 4.1 (PolyLite) to 21.3 (PolyMax) printed XY, ISO 179, notched; Prusament 12 ± 1[1][22][5] | 12 ± 1 printed horizontal and 17 ± 2 printed vertical, ISO 179-1 notched (Prusament)[3] |
| Other impact data | Charpy unnotched does not break on Prusa's pendulum in either orientation (ISO 179-1); PolyMax PC retains 9.2 kJ/m2 notched at -30 °C. Stratasys PC Black gives 85.3 MPa flexural strength at break in ZX against no break in XZ (ASTM D790, printed)[5][22][7] | Charpy unnotched 32 ± 5 printed horizontal and 35 ± 4 printed vertical (Prusament, ISO 179-1)[3] |
| Layer adhesion / Z tensileMPa | 37.1-45.3 at yield printed ZX (Stratasys PC Black and Red, ASTM D638); 41.4 (PolyMax) to 56 (Bambu Lab) printed Z; Prusa's interlayer adhesion test gives 21 +/- 2[5][22][6][7] | 23 ± 2 (Prusa Polymers interlayer adhesion test) — above the 21 ± 2 of unfilled Prusament PC Blend[3][5] |
| Brittleness1–5 | Tough — absorbs impact, yields before breaking[2][5] | Moderate[3][4] |
| Hardness (scale-specific)Shore A / Shore D / Rockwell | Shore D 79 (Prusa Polymers method) and Shore D 79 on extruded PC stock (ASTM D2240); Rockwell 70 (118) — the source does not name the scales[5][24] | 83 Shore D (Prusa Polymers method), against 79 for unfilled Prusament PC Blend[3][5] |
| Creep resistance / sustained load1–5 | Excellent — holds load for years. Room-temperature tensile creep of moulded PC was still running unbroken at 41 MPa when the experiment was stopped for time; specimens failed within the test window only at 47-52 MPa (ASTM D638)[25] | Excellent — holds load for years. Room-temperature tensile creep of moulded unfilled PC ran unbroken at 41 MPa until the test was stopped; short carbon fibre raises the flexural modulus from about 2.1 to 3.5-6.5 GPa, which reduces creep strain further[25][3] |
| Fatigue / repeated-flex resistance1–5 | Good[5][2] | Good. No fatigue test data was found for a carbon-fibre PC filament; the unfilled polymer is rated Good on the same scale[25] |
| Elasticity / flexibility1–5 | Rigid[1] | Rigid[3] |
| Z strength as % of XY% | 59-73 (Stratasys PC Black and Red, ZX against XZ tensile yield, ASTM D638); 76 for PolyLite PC and 90 for Bambu Lab (printed Z against XY tensile)[6][1][7] | Not documented |
| Thermal Properties | ||
| HDT at 0.45 MPa°C | 110 (PolyMax PC-FR) to 114 (PolyMax PC), ISO 75 at 0.45 MPa; Bambu Lab 112, PolyLite 111, Prusament 113. Stratasys FDM PC reaches 144 printed (ASTM D648 Method B at 66 psi)[22][1][6][5][7] | 114 (ISO 75, 0.45 MPa, Prusament)[3] |
| HDT at 1.8 MPa°C | 93 (Prusament) to 117 (Bambu Lab), ISO 75 at 1.8 MPa; PolyLite 107, PolyMax 99. Stratasys FDM PC reaches 141 printed (ASTM D648 Method B at 264 psi)[5][6][1][22][7] | 106 (ISO 75, 1.8 MPa, Prusament), against 93 for unfilled Prusament PC Blend[3][5] |
| Glass transition (Tg)°C | 113 (Polymaker, DSC), 142.5 (Stratasys, ASTM D7426 inflection point) and 145 (Bambu Lab, DSC); Polymaker's material guide quotes 150[1][6][2][7] | 127 (3DXTech, DSC)[4] |
| Melting point / Vicat°C | Amorphous — no melting point; Vicat 117–120 (Polymaker, ISO 306); decomposition above 360 °C[1][22] | Not documented |
| Continuous service temperature°C | 113 — Prusa publishes this as the temperature resistance of Prusament PC Blend; extruded PC stock is rated 121 long term (converted from 250 °F)[5][24] | 113 — Prusa publishes this as the temperature resistance of Prusament PC Blend[5] |
| Annealing response | 90 °C for 2 h (Polymaker)[1] | Not documented |
| Thermal expansion (CTE)µm/m·K | 51.6 in XY over -50 to 30 °C, falling to 35.8 over 30-75 °C and 11.5 over 75-130 °C; 49.2 in XZ over -50 to 120 °C (printed, ASTM E831). Extruded PC stock gives 68.4 (ASTM D696)[7][24] | Not documented |
| Flammability / UL 94 | Flammable; no UL 94 rating on standard PC, though V-0 grades exist[26][1] | Not documented |
| Environment & Chemical | ||
| UV resistance1–5 | Degrades within weeks outdoors — unstabilised PC yellows and embrittles under UV[2] | Degrades within weeks outdoors unless stabilised[2] |
| Chemical resistance | Withstands oils, solvents and fuels; Polymaker rates it good against weak acids[2] | Withstands oils, solvents and fuels; Polymaker rates it good against weak acids[2] |
| Water / humidity resistance in service1–5 | Good — minor absorption[6] | Not documented |
| Food contact | Bisphenol-A polycarbonate is not offered as food-contact filament[2] | Bisphenol-A polycarbonate is not offered as food-contact filament[2] |
| Biodegradability / compostability | Not biodegradable[2] | Not biodegradable[2] |
| Recyclability | Mechanically recyclable but not accepted in household plastic collection[2] | Mechanically recyclable but not accepted in household plastic collection[2] |
| Electrical & ESD properties | Surface resistance above 10¹³ ohm/sq — an electrical insulator, which Polymaker lists as a headline advantage[23][2] | Surface resistance above 10⁹ ohm/sq — not static-dissipative (3DXTech, ASTM D257)[4] |
| Health & Safety | ||
| Fume toxicity1–5 | Moderate — measurable VOCs and UFPs, ventilation advised[27] | Moderate — measurable VOCs and UFPs, ventilation advised[27] |
| Ultrafine-particle emission rateparticles/min | ≈4 × 10¹⁰ median — the highest ultrafine-particle rate of the nine filaments in the chamber study, above every ABS tested[27] | ≈4 × 10¹⁰ median — the highest ultrafine-particle rate of the nine filaments in the chamber study, above every ABS tested[27] |
| Ventilation / filtration requirement1–5 | Ventilated room or enclosure recommended[27][15] | Ventilated room or enclosure recommended[27][15] |
| Dust & fibre handling hazard | Not documented | Carbon fibre is bound in the matrix; sanding dust should not be inhaled[4] |
| Post-Processing | ||
| Sanding & machining | Sands and machines well; the toughness means it cuts rather than chips[17] | Sands and machines well; the toughness means it cuts rather than chips[17] |
| Painting & finishing | Optical clarity survives printing, so transparent parts are usually left unpainted[2] | Not documented |
| Gluing & solvent welding | Cyanoacrylate; dichloromethane solvent-welds PC but is a laboratory reagent[17] | Cyanoacrylate; dichloromethane solvent-welds PC but is a laboratory reagent[17] |
| Vapour / chemical smoothing | No practical vapour smoothing[17] | No practical vapour smoothing[17] |
| Support material pairing | Prints its own supports; 3DXTech sells a dedicated PC break-away support[17] | Prints its own supports; 3DXTech sells a dedicated PC break-away support[17] |
| Dimensional accuracy & detail | Warping is the dominant accuracy limit; light transmission 89 % on PolyLite PC (GB/T 2410)[1][2] | Not documented |
| Solvents & Solubility | ||
| Soluble in | Dichloromethane, chloroform, DMF and dioxane dissolve it outright (Covestro, 6 days at 23 °C). Laboratory reagents.[28] | Dichloromethane and chloroform dissolve the matrix and leave the fibre; DMF and dioxane do the same (Covestro).[28] |
| Softened or crazed by | Methanol, butyl acetate, ether, 1 % NaOH and phthalate plasticisers stress-crack it; acetone, MEK and xylene swell it.[28] | Methanol, butyl acetate, ether, 1 % NaOH and phthalate plasticisers stress-crack it; acetone, MEK and xylene swell it.[28] |
| Solvent welding & smoothing agent | Dichloromethane cement welds PC — 16.5 MPa lap shear at one week (IPS Weld-On 3). A controlled carcinogen.[29] | Dichloromethane cement welds the resin, but the fibre keeps the joint from flowing closed. Controlled carcinogen.[29] |
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
- PolyLite PC Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
- PC — material basics Polymaker Wiki · 2026-08 · doc
- Prusament PC Blend Carbon Fiber Technical Datasheet v2.0 Prusa Polymers · 2023-04 · tds
- CarbonX Carbon Fiber ezPC Polycarbonate Technical Data Sheet 3DXTech · 2026-08 · tds
- Prusament PC Blend Technical Datasheet v1.1 Prusa Polymers · 2022-02 · tds
- Bambu Filament Technical Data Sheet V2.0 — PC Bambu Lab · 2026-08 · tds
- PC (Polycarbonate) — FDM Material Data Sheet Stratasys · 2026-04 · tds
- Polymaker product catalogue Polymaker · 2026-08 · vendor
- Printed Solid product catalogue Printed Solid · 2026-08 · vendor
- Spectrum PC CF Carbon Black, 1.75 mm / 250 g 3DJAKE · 2026-08 · vendor
- 3DXTech product catalogue 3DXTech · 2026-08 · vendor
- IEMAI CF-PC 3D Printing Filament product page IEMAI 3D · 2026-08 · vendor
- YXPOLYER PC CF product page YXPOLYER · 2026-08 · vendor
- Filastruder product catalogue Filastruder · 2026-08 · vendor
- ABS / ASA / PC Usage Guide Bambu Lab Wiki · 2026-08 · doc
- Bambu Filament Technical Data Sheet V1.0 — PC FR Bambu Lab · 2026-08 · tds
- Polycarbonate — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
- Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
- CARBONX ezPC+CF — product page (print recommendations) 3DXTech · 2026-08 · doc
- Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
- Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
- PolyMax PC Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
- ezPC Polycarbonate Technical Data Sheet 3DXTech · 2026-08 · tds
- TECANAT natural (PC) — stock shape properties Ensinger · 2026-08 · tds
- Experimental data for creep and dynamic mechanical properties of polycarbonate and polycarbonate/ABS Data in Brief 42:108264 · 2022-06 · paper
- PolyMax PC-FR Technical Data Sheet V5.5 Polymaker · 2024-11 · tds
- 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
- Makrolon — The chemical resistance (Makrolon 2800, 6 days at 23 °C and 50 °C) Covestro · 2016-12 · tds
- Weld-On 3 Acrylic Plastic Cement — technical data sheet (shipped as dichloromethane) IPS Corporation · 2002-07 · tds