3D Printing Info

Filament comparison

PEBA vs PLA-CF

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

PEBA (polyether block amide) guideCarbon-fibre PLA (PLA-CF) guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PEBA comparisonsMore PLA-CF comparisons
PEBA vs PLA-CF — documented properties and sources
PropertyPEBA (polyether block amide)FLEXCarbon-fibre PLA (PLA-CF)PLA
Market snapshot
Listing priceUSD/kg; dated snapshots$60.99/kg median; $60.99–$60.99/kg across 1 dated product listings$29.99/kg median; $19.00–$79.98/kg across 9 dated product listings
Identity & Market
Base polymer / chemistryPolyether block amide: rigid polyamide and flexible polyether blocks.[1]PLA filled with chopped carbon fibre — 5–10 wt% (Bambu Lab SDS), 8 wt% (Polymaker)[2][3]
Densityg/cm³1.01 g/cm³ (GB/T 1033; eSUN manufacturer data)[1]1.22 (Bambu Lab) to 1.29 (Polymaker, 3DXTech), ISO 1183[4][3][5]
Typical priceUSD/kgNot documented1 kg spools span 19–80; the middle of the market is about 31[6][7][5][8][9]
Price range across brandsUSD/kgNot documented19–80 across brands; IEMAI 19, LANDU 24, SUNLU 27, Polymaker 30, Bambu Lab 32, 3DXTech 47, Proto-pasta 80[7][6][5][10][8][11][9]
Market availability1–5Not documentedStocked by most mainstream brands[6][7][5][10]
Spool sizes & diameters1.75 mm diameter, 1 kg spool.[12]1.75 and 2.85 mm; 0.5, 0.75, 1 and 3 kg spools[10][5][13]
Typical applicationsManufacturer applications include footwear, sports equipment and cushioning.[1]Stiff jigs, drone and RC frames, tool holders — matte black finish, no gain in tensile strength[4][3]
Diameter tolerance± mmNot documented±0.03 (Bambu Lab)[6]
Printing Parameters
Nozzle temperature°C230–260 °C; 240 °C recommended.[1]210–240 (Bambu Lab); 190–230 (Polymaker)[4][3]
Bed temperature°C60–90 °C[1]35–45 (Bambu Lab); 25–60 (Polymaker)[4][3]
Enclosure / chamber requirement1–5Not documentedOpen frame is fine[3]
Part cooling fan10–50% fan recommended; mechanical-test specimens used 50–100%.[1]Fan on[4][3]
Bed surface & adhesion aidPEI build plate[1]Not documented
Maximum volumetric flow (mm³/s; see test conditions)mm³/s9 mm³/s maximum in eSUN spiral-vase test; mechanical specimens used 2 mm³/s. Linear recommendation 25–110 mm/s is a separate quantity.[1]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[4][14][3][15]
Warping tendency1–5Not documentedNone[4]
Stringing / oozing tendency1–5Not documentedSlight[3]
Overall printing difficulty1–5Not documentedEasy — minor profile tuning; needs a hardened nozzle and 0.4 mm or larger[14][3]
Extruder requirementNot documentedNozzles below 0.4 mm are not compatible (Bambu Lab)[14]
Hardware Wear & Reliability
Nozzle hardness required1–4Not documentedHardened steel required[14][3]
Abrasiveness1–5Not documentedHighly abrasive — standard CF composite[14][16]
Nozzle clog risk1–5Not documentedModerate — needs dry filament and a clean nozzle[14]
Hotend requirementNot documentedHardened steel nozzle; Bambu Lab lists PLA-CF among the filaments its hardened-steel nozzle exists for[16][14]
Other hardware wearNot documentedBambu Lab reports AMS wear; Polymaker advises against running PLA-CF through an AMS at all[14][3]
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Not documentedModerate — 0.42 % saturated at 25 °C / 55 % RH (Bambu Lab); 0.38 % equilibrium (Polymaker)[4][3]
Equilibrium moisture content at ~50 % RH%Not documented0.42 saturated at 25 °C / 55 % RH (Bambu Lab); 0.38 equilibrium (Polymaker)[4][3]
Drying temperature & time70–75 °C for 6–8 h; re-dry after receiving or extended exposure.[1]55 °C for 6–8 h[4][3]
Effect of moisture on strengthNot documentedPolymaker 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[17]
Mechanical Properties
Tensile strength (XY)MPa>16.5 MPa printed XY, GB/T 1040; manufacturer lower bound, not an exact measurement.[1]31.2 (Polymaker) to 38 (Bambu Lab) printed XY, ISO 527; 48 at break for 3DXTech[4][3][5]
Young's modulusMPaNot documented2790 (Bambu Lab) to 3281 (Polymaker) printed XY, ISO 527; 4950 for 3DXTech[4][3][5]
Elongation at break%>520% printed XY, GB/T 1040; manufacturer lower bound.[1]8.4 (Bambu Lab) and 13.2 (Polymaker) printed XY, ISO 527; 2 for 3DXTech[4][3][5]
Flexural strengthMPaNot documented51.7 (Polymaker) to 89 (Bambu Lab) printed XY, ISO 178[4][3]
Flexural modulusMPaNot documented3381 (Polymaker) to 3950 (Bambu Lab) printed XY, ISO 178; 6320 for 3DXTech[4][3][5]
Charpy impact, notchedkJ/m²Not documented5.5 (Polymaker) and 7.6 (Bambu Lab) printed XY, ISO 179, notched[4][3]
Other impact dataNot documentedCharpy unnotched 23.2 printed XY (Bambu Lab, ISO 179)[4]
Layer adhesion / Z tensileMPa7.5 MPa printed Z, GB/T 1040 (manufacturer test)[1]15.1 (Polymaker) to 26 (Bambu Lab) printed Z, ISO 527[4][3]
Brittleness1–5Not documentedBrittle — snaps with little warning; elongation in Z falls to 0.9 % (Polymaker)[3][4]
Hardness (scale-specific)Shore A / Shore D / Rockwell90 Shore A nominal grade designation; do not compare numerically with Shore D or Rockwell.[12]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[18]
Creep resistance / sustained load1–5Not documentedPoor — 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[19][20][18]
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 %[21][3]
Elasticity / flexibility1–5Not documentedRigid[3]
Z strength as % of XY%Not documented48 (Polymaker) to 68 (Bambu Lab), printed[4][3]
Thermal Properties
HDT at 0.45 MPa°CNot documented54 (Polymaker) to 55 (Bambu Lab), ISO 75 at 0.45 MPa[4][3]
HDT at 1.8 MPa°CNot documented50 (Polymaker) to 54 (Bambu Lab), ISO 75 at 1.8 MPa[4][3]
Glass transition (Tg)°CNot documented62–63 (DSC)[4][3]
Melting point / Vicat°C110 °C Vicat softening (GB/T 1633, 120 °C/h, 10 N); not HDT or a continuous-use rating.[1]162–165 peak melt (DSC); Vicat 64 °C (Polymaker)[4][3]
Continuous service temperature°CNot documented50–61 — loaded bars begin to move at this temperature across three brands (Sunlu 50, Bambu Lab and Polymaker 61)[19][20][18]
Environment & Chemical
UV resistance1–5Not documentedDegrades within weeks outdoors[22]
Chemical resistanceNot documentedGood against weak acids, oils and grease; poor against strong acids and alkalis[3]
Health & Safety
Fume toxicity1–5Not documentedLow hazard — minimal VOC and particle emission[23]
Ventilation / filtration requirement1–5Not documentedNone needed in a normal room[23]
Dust & fibre handling hazardNot documentedCarbon fibre is bound in the matrix; sanding dust should not be inhaled[2]
Post-Processing
Support material pairingNot documentedSupport for PLA (Bambu Lab); PolySupport and PolyDissolve S1 (Polymaker)[4][3]
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[4][3][24][25]
Solvents & Solubility
Soluble inNot documentedChloroform dissolves the PLA matrix (10 % w/v, 2–4 h at 23 °C) and leaves the filler as loose sludge; laboratory reagent.[26]
Softened or crazed byNot documentedAcetone, ethyl acetate and toluene plasticise the matrix but dissolve <1 % even at 65 °C; acetone submersion crazes parts.[26][27]
Solvent welding & smoothing agentNot documentedChloroform vapour attacks only the resin fraction, so the filler is left standing proud; no workshop-safe agent exists.[28][27]

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. eSUN PEBA-90A Technical Data Sheet v1.0 (Aug 2025), checked 2026-10-17 eSUN · 2025-08 · tds
  2. Safety Data Sheet SDS20251127A50 — Bambu PLA-CF Bambu Lab · 2025-11 · msds
  3. PolyLite PLA-CF Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
  4. Bambu Filament Technical Data Sheet V4.0 — PLA-CF Bambu Lab · 2026-08 · tds
  5. CarbonX PLA+CF Technical Data Sheet v3 3DXTech · 2026-08 · tds
  6. PLA-CF — product page Bambu Lab US Store · 2026-08 · vendor
  7. PolyLite PLA-CF — product page Polymaker Shop · 2026-08 · vendor
  8. IEMAI CF-PLA 3D Printing Filament product page IEMAI 3D · 2026-08 · vendor
  9. SUNLU PLA-CF Carbon Fiber 3D Printer Filament 1 kg SUNLU · 2026-08 · vendor
  10. Proto-pasta product catalogue Proto-pasta · 2026-08 · vendor
  11. LANDU Carbon Fiber PLA Filament 1.75 mm Black 1 kg LANDU (Amazon US) · 2026-08 · vendor
  12. eSUN PEBA-90A official product page: 1 kg price and product identity eSUN · 2026-10-17 · vendor
  13. Polymaker product catalogue Polymaker · 2026-08 · vendor
  14. PLA Usage Guide Bambu Lab Wiki · 2026-08 · doc
  15. Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
  16. Nozzles — material and compatibility Bambu Lab Wiki · 2026-08 · doc
  17. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  18. Carbon Fiber PLA vs META-PLA vs PLA+ vs PLA by Sunlu — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  19. BambuLab PLA Basic vs PLA Tough vs PLA-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  20. Polymaker PLA Pro vs PLA-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  21. Mechanical Properties of Additively Manufactured Polymeric Materials — PLA and PETG — For Biomechanical Applications Polymers 16(13):1868 · 2024-06 · paper
  22. PLA — material guide Prusa Knowledge Base · 2026-08 · doc
  23. 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
  24. PolyLite PLA Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
  25. Bambu Filament Technical Data Sheet V3.0 — PLA Basic Bambu Lab · 2026-08 · tds
  26. Solubility Study of Ingeo Biopolymer Grades in Common Organic Solvents (NWPD003) NatureWorks · 2019-10 · tds
  27. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc
  28. 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