3D Printing Info

Filament comparison

PC-ABS vs PLA-CF

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

PC/ABS blend guideCarbon-fibre PLA (PLA-CF) guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PC-ABS comparisonsMore PLA-CF comparisons
PC-ABS vs PLA-CF — documented properties and sources
PropertyPC/ABS blendPCCarbon-fibre PLA (PLA-CF)PLA
Market snapshot
Listing priceUSD/kg; dated snapshots$45.99/kg median; $34.99–$84.00/kg across 5 dated product listings$29.99/kg median; $19.00–$79.98/kg across 9 dated product listings
Identity & Market
Base polymer / chemistryPolycarbonate/ABS alloy — PC stiffness and heat resistance with ABS processability[1][2]PLA filled with chopped carbon fibre — 5–10 wt% (Bambu Lab SDS), 8 wt% (Polymaker)[3][4]
Densityg/cm³1.10 (Polymaker) and 1.24 (3DXTech FR grade), ISO 1183; Stratasys specific gravity 1.10 (ASTM D792)[1][2][5]1.22 (Bambu Lab) to 1.29 (Polymaker, 3DXTech), ISO 1183[6][4][7]
Typical priceUSD/kg1 kg spools cluster near 50[8][9]1 kg spools span 19–80; the middle of the market is about 31[10][11][7][12][13]
Price range across brandsUSD/kg35–84 across brands; Reli3D 35, SUNLU 46, Polymaker 50, 3DXMAX 84[8][9][14][15]19–80 across brands; IEMAI 19, LANDU 24, SUNLU 27, Polymaker 30, Bambu Lab 32, 3DXTech 47, Proto-pasta 80[11][10][7][16][12][17][13]
Market availability1–5Available from several mainstream brands[8][9]Stocked by most mainstream brands[10][11][7][16]
Spool sizes & diameters1.75 and 2.85 mm; 0.5 and 1 kg spools[8][9]1.75 and 2.85 mm; 0.5, 0.75, 1 and 3 kg spools[16][7][8]
Typical applicationsAutomotive interior and electronics housings that need PC heat resistance without PC's warping[1]Stiff jigs, drone and RC frames, tool holders — matte black finish, no gain in tensile strength[6][4]
Diameter tolerance± mmNot documented±0.03 (Bambu Lab)[10]
Printing Parameters
Nozzle temperature°C250–270 (Polymaker)[1]210–240 (Bambu Lab); 190–230 (Polymaker)[6][4]
Bed temperature°C90–105 (Polymaker)[1]35–45 (Bambu Lab); 25–60 (Polymaker)[6][4]
Enclosure / chamber requirement1–5Enclosure required (passive) — Polymaker specifies a 90–100 °C chamber[1]Open frame is fine[4]
Recommended chamber temperature°C90–100 (Polymaker)[1]Not documented
Part cooling fanOff (Polymaker)[1]Fan on[6][4]
Bed surface & adhesion aidPEI with a glue stick or a commercial adhesive[18]Not documented
Maximum volumetric flow (mm³/s; see test conditions)mm³/s20 at Polymaker's 250 mm/s cap on a 0.4 mm nozzle at 0.2 mm layer[1][19]16 at Bambu Lab's 200 mm/s cap and 24 at Polymaker's 300 mm/s, on a 0.4 mm nozzle at 0.2 mm layer; Bambu Lab's own filament guide says 250 mm/s where its TDS says 200[6][20][4][19]
Warping tendency1–5High — enclosure needed for reliable large parts[1][21]None[6]
Bed-adhesion difficulty1–5Needs a specific surface plus adhesive[18][22]Not documented
Stringing / oozing tendency1–5Moderate — retraction tuning needed; Polymaker flags stringing as a common PC problem[22]Slight[4]
Overall printing difficulty1–5Advanced — enclosure, hardware upgrades, tuning[1][21]Easy — minor profile tuning; needs a hardened nozzle and 0.4 mm or larger[20][4]
Extruder requirementNot documentedNozzles below 0.4 mm are not compatible (Bambu Lab)[20]
Hardware Wear & Reliability
Nozzle hardness required1–4Brass fine indefinitely[21]Hardened steel required[20][4]
Abrasiveness1–5Non-abrasive[1]Highly abrasive — standard CF composite[20][23]
Nozzle clog risk1–5Moderate — needs dry filament and a clean nozzle; 3DXTech lists no special nozzle concerns but a 120 °C pre-dry of 4 h or more[24]Moderate — needs dry filament and a clean nozzle[20]
Heat-creep / jam sensitivity1–5Slightly sensitive[18]Not documented
Hotend requirementAll-metal hot end required (Simplify3D)[18]Hardened steel nozzle; Bambu Lab lists PLA-CF among the filaments its hardened-steel nozzle exists for[23][20]
Other hardware wearNot documentedBambu Lab reports AMS wear; Polymaker advises against running PLA-CF through an AMS at all[20][4]
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Low (0.1–0.3 %) — the PC matrix takes up 0.15–0.25 % and 3DXTech specifies a 120 °C, 4 h or more pre-dry[25][26][24]Moderate — 0.42 % saturated at 25 °C / 55 % RH (Bambu Lab); 0.38 % equilibrium (Polymaker)[6][4]
Equilibrium moisture content at ~50 % RH%Not documented0.42 saturated at 25 °C / 55 % RH (Bambu Lab); 0.38 equilibrium (Polymaker)[6][4]
Drying temperature & time75 °C for 6 h (Polymaker)[1]55 °C for 6–8 h[6][4]
Symptoms when wetBubbling and popping at the nozzle, stringing and a rough surface[27]Not documented
Effect of moisture on strengthNo 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[22][27]Polymaker rates PLA low-sensitivity and publishes no dry-versus-conditioned figures for this grade; absorbed water flashes to steam and shows as bubbling and poor layer adhesion[27]
Storage requirementAirtight containers with desiccant to prevent reabsorption[22]Not documented
Mechanical Properties
Tensile strength (XY)MPa39.9 ± 1.0 printed XY, ISO 527 (Polymaker); 3DXTech quotes 60 at break for its FR PC/ABS[1][2]31.2 (Polymaker) to 38 (Bambu Lab) printed XY, ISO 527; 48 at break for 3DXTech[6][4][7]
Young's modulusMPa1835 ± 65 printed XY, ISO 527 (Polymaker); 3DXTech quotes 2250[1][2]2790 (Bambu Lab) to 3281 (Polymaker) printed XY, ISO 527; 4950 for 3DXTech[6][4][7]
Elongation at break%4.2 ± 0.3 printed XY, ISO 527 (Polymaker); 3DXTech quotes 10 at break[1][2]8.4 (Bambu Lab) and 13.2 (Polymaker) printed XY, ISO 527; 2 for 3DXTech[6][4][7]
Flexural strengthMPa66.3 ± 0.9 printed XY, ISO 178 (Polymaker); 3DXTech quotes 85[1][2]51.7 (Polymaker) to 89 (Bambu Lab) printed XY, ISO 178[6][4]
Flexural modulusMPa2081 ± 106 printed XY, ISO 178 (Polymaker); 3DXTech quotes 2300[1][2]3381 (Polymaker) to 3950 (Bambu Lab) printed XY, ISO 178; 6320 for 3DXTech[6][4][7]
Charpy impact, notchedkJ/m²25.8 ± 1.3 printed XY, ISO 179, notched (Polymaker) — above both unfilled PC and ABS[1]5.5 (Polymaker) and 7.6 (Bambu Lab) printed XY, ISO 179, notched[6][4]
Other impact dataNotched Charpy still 13 ± 2 kJ/m² at −30 °C printed XY (Polymaker, ISO 179-1/1eA), against 1.5 in Z. Stratasys prints Izod notched at 241 J/m XZ against 34.0 J/m ZX, and unnotched 655 against 101 J/m (ASTM D256, F900 T16).[1][5]Charpy unnotched 23.2 printed XY (Bambu Lab, ISO 179)[6]
Layer adhesion / Z tensileMPa25.9-30.2 at break printed ZX (Stratasys, ASTM D638 on the F900 and Fortus 450mc); 22.9 +/- 1.2 printed Z, ISO 527 (Polymaker)[1][5]15.1 (Polymaker) to 26 (Bambu Lab) printed Z, ISO 527[6][4]
Brittleness1–5Tough — absorbs impact, yields before breaking[1]Brittle — snaps with little warning; elongation in Z falls to 0.9 % (Polymaker)[4][6]
Hardness (scale-specific)Shore A / Shore D / RockwellRockwell 70 (118) — the source does not name the scales and Shore D 79 on extruded unfilled PC stock (ASTM D785, D2240); no figure is published for a PC/ABS filament[28]71.5 Shore D measured on printed bars for Sunlu CF PLA (My Tech Fun), against 75.3 for the same maker's unfilled PLA[29]
Creep resistance / sustained load1–5Good. Room-temperature tensile creep of moulded PC/ABS was still running unbroken at 30 MPa when the experiment was stopped for time; specimens failed within the test window at 39-47 MPa (ASTM D638)[30]Poor — 12 mm bars sagged to 15.1, 19.8 and 21.3 mm over 5 days at 1.25 kg across three brands, against 16.2–21.8 mm for their unfilled PLA[31][32][29]
Fatigue / repeated-flex resistance1–5Not documentedPoor — no CF-grade S-N curve; plain printed PLA ran 38 000–49 000 cycles at 30 % of tensile strength and elongation in Z falls to 0.9 %[33][4]
Elasticity / flexibility1–5Rigid[1]Rigid[4]
Z strength as % of XY%75-86 (Stratasys ZX against XZ tensile at break, ASTM D638) against 57 (Polymaker, printed Z against XY tensile)[1][5]48 (Polymaker) to 68 (Bambu Lab), printed[6][4]
Thermal Properties
HDT at 0.45 MPa°C112 (ISO 75 at 0.45 MPa, Polymaker); Stratasys prints 117.9 in XY and 126.1 in XZ (ASTM D648 Method B at 66 psi), against 125.0 moulded[1][5]54 (Polymaker) to 55 (Bambu Lab), ISO 75 at 0.45 MPa[6][4]
HDT at 1.8 MPa°C106 (ISO 75 at 1.8 MPa, Polymaker); Stratasys prints 107.5 in XY and 112.0 in XZ (ASTM D648 Method B at 264 psi), against 102.9 moulded[1][5]50 (Polymaker) to 54 (Bambu Lab), ISO 75 at 1.8 MPa[6][4]
Glass transition (Tg)°C109 (Polymaker) and 137 (3DXTech FR grade), DSC; Stratasys measures 105.3 (ASTM D7426 inflection point)[1][2][5]62–63 (DSC)[6][4]
Melting point / Vicat°CAmorphous — no melting point; Vicat 135 (Polymaker, ISO 306)[1]162–165 peak melt (DSC); Vicat 64 °C (Polymaker)[6][4]
Continuous service temperature°C113 — Prusa publishes this as the temperature resistance of Prusament PC Blend[26]50–61 — loaded bars begin to move at this temperature across three brands (Sunlu 50, Bambu Lab and Polymaker 61)[31][32][29]
Annealing response90 °C for 2 h (Polymaker)[1]Not documented
Thermal expansion (CTE)µm/m·K59.9 over -50 to 35 °C and 73.0 over -50 to 95 °C (printed XY, ASTM E831)[5]Not documented
Environment & Chemical
UV resistance1–5Degrades within weeks outdoors[22]Degrades within weeks outdoors[34]
Chemical resistanceWithstands oils, solvents and fuels; Polymaker rates it good against weak acids[22]Good against weak acids, oils and grease; poor against strong acids and alkalis[4]
Food contactBisphenol-A polycarbonate is not offered as food-contact filament[22]Not documented
Biodegradability / compostabilityNot biodegradable[22]Not documented
RecyclabilityMechanically recyclable but not accepted in household plastic collection[22]Not documented
Health & Safety
Fume toxicity1–5Moderate — measurable VOCs and UFPs, ventilation advised[35]Low hazard — minimal VOC and particle emission[35]
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[35]Not documented
Ventilation / filtration requirement1–5Ventilated room or enclosure recommended[35][21]None needed in a normal room[35]
Dust & fibre handling hazardNot documentedCarbon fibre is bound in the matrix; sanding dust should not be inhaled[3]
Post-Processing
Sanding & machiningSands and machines well; the toughness means it cuts rather than chips[18]Not documented
Gluing & solvent weldingCyanoacrylate; dichloromethane solvent-welds PC but is a laboratory reagent[18]Not documented
Vapour / chemical smoothingAcetone attacks the ABS phase, so surface smoothing is partial rather than full[1]Not documented
Support material pairingPrints its own supports; 3DXTech sells a dedicated PC break-away support[18]Support for PLA (Bambu Lab); PolySupport and PolyDissolve S1 (Polymaker)[6][4]
Dimensional accuracy & detailNot documentedMatte finish hides layer lines; stiffness is the gain — tensile strength stays at or below Bambu Lab PLA Basic's 35 MPa and Polymaker PolyLite PLA's 52.3 MPa[6][4][36][37]
Solvents & Solubility
Soluble inDichloromethane and chloroform dissolve the PC phase; acetone, MEK and THF dissolve the ABS phase.[38][39]Chloroform dissolves the PLA matrix (10 % w/v, 2–4 h at 23 °C) and leaves the filler as loose sludge; laboratory reagent.[40]
Softened or crazed byPetrol, esters, ether and 1 % alkali stress-crack the PC phase; aromatics and esters soften the ABS phase.[38][39]Acetone, ethyl acetate and toluene plasticise the matrix but dissolve <1 % even at 65 °C; acetone submersion crazes parts.[40][41]
Solvent welding & smoothing agentAcetone attacks only the ABS phase, so smoothing is partial; a dichloromethane cement welds the whole section.[1][42]Chloroform vapour attacks only the resin fraction, so the filler is left standing proud; no workshop-safe agent exists.[43][41]

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. Polymaker PC-ABS Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
  2. Firewire Flame Retardant PC/ABS Technical Data Sheet Rev 3.0 3DXTech · 2026-08 · tds
  3. Safety Data Sheet SDS20251127A50 — Bambu PLA-CF Bambu Lab · 2025-11 · msds
  4. PolyLite PLA-CF Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
  5. PC-ABS — FDM Material Data Sheet Stratasys · 2023-08 · tds
  6. Bambu Filament Technical Data Sheet V4.0 — PLA-CF Bambu Lab · 2026-08 · tds
  7. CarbonX PLA+CF Technical Data Sheet v3 3DXTech · 2026-08 · tds
  8. Polymaker product catalogue Polymaker · 2026-08 · vendor
  9. 3DXTech product catalogue 3DXTech · 2026-08 · vendor
  10. PLA-CF — product page Bambu Lab US Store · 2026-08 · vendor
  11. PolyLite PLA-CF — product page Polymaker Shop · 2026-08 · vendor
  12. IEMAI CF-PLA 3D Printing Filament product page IEMAI 3D · 2026-08 · vendor
  13. SUNLU PLA-CF Carbon Fiber 3D Printer Filament 1 kg SUNLU · 2026-08 · vendor
  14. Reli3D PC-ABS Filament, Black, 1000 g spool Reli3D (Amazon US) · 2026-08 · vendor
  15. SUNLU PC-ABS 3D Printer Filament 1 kg SUNLU · 2026-08 · vendor
  16. Proto-pasta product catalogue Proto-pasta · 2026-08 · vendor
  17. LANDU Carbon Fiber PLA Filament 1.75 mm Black 1 kg LANDU (Amazon US) · 2026-08 · vendor
  18. Polycarbonate — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  19. Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
  20. PLA Usage Guide Bambu Lab Wiki · 2026-08 · doc
  21. ABS / ASA / PC Usage Guide Bambu Lab Wiki · 2026-08 · doc
  22. PC — material basics Polymaker Wiki · 2026-08 · doc
  23. Nozzles — material and compatibility Bambu Lab Wiki · 2026-08 · doc
  24. 3DXTech 3DXMAX ABS product page 3DXTech · 2026-08 · vendor
  25. Bambu Filament Technical Data Sheet V2.0 — PC Bambu Lab · 2026-08 · tds
  26. Prusament PC Blend Technical Datasheet v1.1 Prusa Polymers · 2022-02 · tds
  27. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  28. TECANAT natural (PC) — stock shape properties Ensinger · 2026-08 · tds
  29. Carbon Fiber PLA vs META-PLA vs PLA+ vs PLA by Sunlu — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  30. Experimental data for creep and dynamic mechanical properties of polycarbonate and polycarbonate/ABS Data in Brief 42:108264 · 2022-06 · paper
  31. BambuLab PLA Basic vs PLA Tough vs PLA-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  32. Polymaker PLA Pro vs PLA-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  33. Mechanical Properties of Additively Manufactured Polymeric Materials — PLA and PETG — For Biomechanical Applications Polymers 16(13):1868 · 2024-06 · paper
  34. PLA — material guide Prusa Knowledge Base · 2026-08 · doc
  35. 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
  36. PolyLite PLA Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
  37. Bambu Filament Technical Data Sheet V3.0 — PLA Basic Bambu Lab · 2026-08 · tds
  38. Makrolon — The chemical resistance (Makrolon 2800, 6 days at 23 °C and 50 °C) Covestro · 2016-12 · tds
  39. Chemical resistance — resistance of Ensinger plastics to chemicals (DIN 50 014, 23/50) Ensinger · 2026-08 · tds
  40. Solubility Study of Ingeo Biopolymer Grades in Common Organic Solvents (NWPD003) NatureWorks · 2019-10 · tds
  41. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc
  42. Weld-On 3 Acrylic Plastic Cement — technical data sheet (shipped as dichloromethane) IPS Corporation · 2002-07 · tds
  43. Effect of vapour smoothing in trichloromethane on 3D printed PLA — surface, mechanical and chemical structure Pitale, Keche & Chopra, Engineering Research Express 6(4) 045579 · 2024-12 · paper