3D Printing Info

Filament comparison

ASA vs PC-CF

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

ASA guideCarbon-fibre PC (PC-CF) guide

2 selected · all documented properties

Open these two in the interactive comparisonMore ASA comparisonsMore PC-CF comparisons
ASA vs PC-CF — documented properties and sources
PropertyASAASACarbon-fibre PC (PC-CF)PC
Market snapshot
Listing priceUSD/kg; dated snapshots$28.98/kg median; $17.99–$50.00/kg across 14 dated product listings$62.58/kg median; $34.99–$117.33/kg across 6 dated product listings
Identity & Market
Base polymer / chemistryAcrylonitrile styrene acrylate — ABS with the butadiene rubber phase replaced by an acrylate rubber that has no UV-vulnerable double bonds[1][2]Polycarbonate reinforced with chopped carbon fibre[3][4]
Densityg/cm³1.05 (Bambu Lab) to 1.13 (PolyLite ASA), ISO 1183; Prusament 1.07[5][6][2]1.22 (Prusament) and 1.36 (3DXTech), ISO 1183[3][4]
Typical priceUSD/kg1 kg spools cluster near 30[7][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/kg18–50 across brands; IEMAI 18, SUNLU 18, Ambrosia 23, Polymaker 26, Bambu Lab 30, YXPOLYER 30, Prusament 41, 3DXTech 50[14][8][7][15][9][11][16][17][18]35–117 across brands; Ambrosia 35, IEMAI 39, YXPOLYER 55, Spectrum PC CF 70, Prusament 94, 3DXTech 117[9][10][11][12][13]
Market availability1–5Stocked by most mainstream brands[7][8][11][9]Available from several mainstream brands[9][11][14]
Spool sizes & diameters1.75 and 2.85 mm; 0.8, 1, 4 and 10 kg spools[11][9][7]1.75 and 2.85 mm; 0.75, 0.8 and 1 kg spools[9][11]
Typical applicationsOutdoor fittings, signage, automotive exterior trim and anything that has to hold colour and strength in sunlight[19][1]Stiff high-temperature structural parts — jigs, drone frames and under-bonnet brackets[3][4]
Diameter tolerance± mm±0.04 (Prusament)[2]±0.04 (Prusament PC Blend Carbon Fiber)[3]
Printing Parameters
Nozzle temperature°C230–270 across brands; Prusament 260 ± 10, Bambu Lab 240–270, PolyLite 230–260[5][6][2]285 ± 10 (Prusament)[3]
Bed temperature°C75–110; Prusament 110 ± 5, Bambu Lab 80–100, PolyLite 75–95[5][6][2]110 ± 10 (Prusament)[3]
Enclosure / chamber requirement1–5Enclosure recommended — Polymaker calls a chamber needed at ambient temperature, Bambu Lab requires an enclosed printer and rules out its P1P and A-series machines[6][20]Enclosure required (passive)[3][20]
Recommended chamber temperature°C45–60 (Bambu Lab)[5]Not documented
Part cooling fanLow — Prusament 30 % within a 0–50 % range, Bambu Lab 0–80 %, PolyLite off[2][5][6]Off — Prusa allows 0–20 % and warns cooling significantly reduces interlayer adhesion[3]
Bed surface & adhesion aidSatin, smooth PEI or powder-coated sheet with a glue stick; Prusa advises a 3 mm or taller brim on large parts[2][20]PEI with a glue stick or a commercial adhesive[21]
Maximum volumetric flow (mm³/s; see test conditions)mm³/s10–16 (PrusaSlicer guidance for ABS/ASA)[22]Not documented
Warping tendency1–5High — enclosure needed for reliable large parts; Prusa recommends a tall brim and Bambu Lab attributes cracking to cooling stress exceeding interlayer adhesion[2][20]High — enclosure needed for reliable large parts; the fibre reduces warping against unfilled PC[3][20]
Bed-adhesion difficulty1–5Needs a specific surface plus adhesive[2][20]Needs a specific surface plus adhesive[21][23]
Stringing / oozing tendency1–5Slight[6]Moderate — retraction tuning needed; Polymaker flags stringing as a common PC problem[23]
Overall printing difficulty1–5Intermediate — dry filament and a tuned profile[20][2]Advanced — enclosure, hardware upgrades, tuning; hardened nozzle mandatory[20][3]
Hardware Wear & Reliability
Nozzle hardness required1–4Brass fine indefinitely[20]Hardened steel required[20]
Abrasiveness1–5Non-abrasive[20]Highly abrasive — standard CF composite[20]
Nozzle clog risk1–5Low — no special hot-end required and clogging is not among the listed drawbacks; Prusa lists no drybox and no hardened nozzle[24][25]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[26][21][27]
Heat-creep / jam sensitivity1–5Slightly sensitive[24]Slightly sensitive[21]
Hotend requirementNo special hot-end required[24]All-metal hot end required (Simplify3D)[21]
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Moderate — 0.45 % saturated at 25 °C / 55 % RH (Bambu Lab) and 0.40 % equilibrium (Polymaker); Prusa measures only 0.17 % after 7 days at 22 % RH[5][6][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[28][29][26]
Equilibrium moisture content at ~50 % RH%0.45 saturated at 25 °C / 55 % RH (Bambu Lab); 0.40 equilibrium (Polymaker); 0.17 after 7 days at 24 °C / 22 % RH (Prusa)[5][6][2]0.11 after 7 days at 24 °C / 22 % RH (Prusa Polymers)[3]
Drying temperature & time80 °C for 8 h (Bambu Lab); 70 °C for 7 h (Polymaker)[5][6]Not documented
Symptoms when wetBubbling and popping at the nozzle, stringing, rough surface and weak layers[30]Bubbling and popping at the nozzle, stringing and a rough surface[30]
Effect of moisture on strengthNo dry-versus-conditioned figures are published for ASA; Polymaker groups the styrenics as moderate-sensitivity and the loss shows as poor layer adhesion rather than a stated strength delta[30]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[23][30]
Storage requirementSealed with desiccant; Polymaker rates the styrenics moderate-sensitivity[30]Airtight containers with desiccant to prevent reabsorption[23]
Mechanical Properties
Tensile strength (XY)MPa37 ± 3 (Bambu Lab) to 43.8 (PolyLite) printed XY, ISO 527; Prusament 42 ± 1 at yield; Formfutura quotes 47.5 at yield[5][6][2][31]64 ± 3 printed horizontal and 70 ± 3 printed vertical at yield, ISO 527-1 (Prusament); 3DXTech quotes 73 at break[3][4]
Young's modulusMPa2379 (PolyLite) to 2450 (Bambu Lab) printed XY, ISO 527; Prusament 1600, Formfutura 2020[5][6][2][31]2600 printed horizontal and 3200 printed vertical, ISO 527-1 (Prusament); 3DXTech quotes 6980[3][4]
Elongation at break%6.7 (PolyLite) to 9.2 (Bambu Lab) at break, printed XY, ISO 527; Formfutura quotes 15 at break, Prusament 3.4 at yield[5][6][31][2]4.6 at yield printed horizontal (Prusament); 3DXTech quotes 2.1 at break[3][4]
Flexural strengthMPa64 ± 1 printed horizontal (Prusament, ISO 178); Bambu Lab 65 ± 5, PolyLite 73.4[2][5][6]94 ± 3 printed horizontal and 130 ± 2 printed vertical, ISO 178 (Prusament); 3DXTech quotes 85[3][4]
Flexural modulusMPa1920 ± 130 (Bambu Lab) to 3206 (PolyLite) printed XY, ISO 178; Prusament 2000[5][6][2]3500 printed horizontal and 4200 printed vertical, ISO 178 (Prusament); 3DXTech quotes 6540[3][4]
Charpy impact, notchedkJ/m²10.3 (PolyLite) to 19.6 (Bambu Lab) printed XY, ISO 179, notched; Prusament 12 ± 1, Formfutura 18[6][5][2][31]12 ± 1 printed horizontal and 17 ± 2 printed vertical, ISO 179-1 notched (Prusament)[3]
Other impact dataCharpy unnotched 25 ± 3 printed horizontal and 38 ± 11 printed vertical (Prusament, ISO 179-1); Bambu Lab 41.0 ± 2.3 printed XY[2][5]Charpy unnotched 32 ± 5 printed horizontal and 35 ± 4 printed vertical (Prusament, ISO 179-1)[3]
Layer adhesion / Z tensileMPa11 ± 1 (Prusa interlayer adhesion test); 31 ± 4 (Bambu Lab) and 32 (PolyLite) printed Z tensile, ISO 527[2][5][6]23 ± 2 (Prusa Polymers interlayer adhesion test) — above the 21 ± 2 of unfilled Prusament PC Blend[3][29]
Brittleness1–5Tough — absorbs impact, yields before breaking[5][2]Moderate[3][4]
Hardness (scale-specific)Shore A / Shore D / Rockwell78 Shore D (Prusa Polymers method)[2]83 Shore D (Prusa Polymers method), against 79 for unfilled Prusament PC Blend[3][29]
Creep resistance / sustained load1–5Moderate — no printed-ASA creep test found; Tg of 98 °C keeps room-temperature service far below softening, unlike PLA[6][2]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[32][3]
Fatigue / repeated-flex resistance1–5Moderate — fatigue limit at 25 % of tensile strength (8 MPa) on printed specimens, the best of the four polymers in that study[33]Good. No fatigue test data was found for a carbon-fibre PC filament; the unfilled polymer is rated Good on the same scale[32]
Elasticity / flexibility1–5Rigid[5]Rigid[3]
Z strength as % of XY%84 (Bambu Lab, printed Z against XY tensile); 73 for PolyLite ASA[5][6]Not documented
Thermal Properties
HDT at 0.45 MPa°C93 (Prusament) to 103 (PolyLite), ISO 75 at 0.45 MPa; Bambu Lab 100[2][6][5]114 (ISO 75, 0.45 MPa, Prusament)[3]
HDT at 1.8 MPa°C86 (Prusament) to 100 (PolyLite), ISO 75 at 1.8 MPa; Bambu Lab 92[2][6][5]106 (ISO 75, 1.8 MPa, Prusament), against 93 for unfilled Prusament PC Blend[3][29]
Glass transition (Tg)°C98 (PolyLite, DSC)[6]127 (3DXTech, DSC)[4]
Melting point / Vicat°CAmorphous — no melting point; Vicat 105 (PolyLite, ISO 306)[6]Not documented
Continuous service temperature°C93 — Prusa publishes this as the temperature resistance of Prusament ASA[34]113 — Prusa publishes this as the temperature resistance of Prusament PC Blend[29]
Thermal expansion (CTE)µm/m·K69 ± 17 in XY and 115 ± 24 in the build direction (printed, TMA, 40–70 °C)[35]Not documented
Flammability / UL 94Flammable; no UL 94 rating published for standard ASA[5]Not documented
Environment & Chemical
UV resistance1–5Excellent — designed for permanent outdoor use. After 1000 h of QUV exposure to ASTM G154 Stratasys measured yield strength falling only from 30.5 to 30.3 MPa and stress at break by 3.0 %[19]Degrades within weeks outdoors unless stabilised[23]
Outdoor durability1000 h QUV per ASTM G154, cycling 8 h at 60 °C and 4 h at 50 °C with condensation: yield 30.5 → 30.3 MPa, stress at break 30.5 → 29.5 MPa, elongation 2.8 → 2.3 %, modulus 1.82 → 1.95 GPa[19]Not documented
Chemical resistanceGood against weak acids, weak alkalis, oils and grease; dissolved by acetone[6]Withstands oils, solvents and fuels; Polymaker rates it good against weak acids[23]
Water / humidity resistance in service1–5Good — minor absorption[5]Not documented
Food contactNot food safe[1]Bisphenol-A polycarbonate is not offered as food-contact filament[23]
Biodegradability / compostabilityNot biodegradable[1]Not biodegradable[23]
RecyclabilityNot accepted in household plastic collection[1]Mechanically recyclable but not accepted in household plastic collection[23]
Electrical & ESD propertiesNot documentedSurface resistance above 10⁹ ohm/sq — not static-dissipative (3DXTech, ASTM D257)[4]
Health & Safety
Fume toxicity1–5High — hazardous VOC such as styrene; enclosure and filtration needed[36][20]Moderate — measurable VOCs and UFPs, ventilation advised[36]
VOC emission rateµg/min12–113 styrene, the range measured across the styrenic filaments tested; ASA itself was not among them[36]Not documented
Ultrafine-particle emission rateparticles/min2 × 10¹⁰ to 9 × 10¹⁰ median for ABS, the closest styrenic tested; ASA itself was not measured[36]≈4 × 10¹⁰ median — the highest ultrafine-particle rate of the nine filaments in the chamber study, above every ABS tested[36]
Hazardous species emittedStyrene. Bambu Lab states ABS and ASA release harmful gases such as styrene at printing temperature, which can be toxic and cause dizziness or nausea. Azimi et al. measured styrene from every styrenic filament tested but did not test ASA itself[20][36]Not documented
Ventilation / filtration requirement1–5Enclosure with carbon and HEPA filtration[36][20]Ventilated room or enclosure recommended[36][20]
Dust & fibre handling hazardNot documentedCarbon fibre is bound in the matrix; sanding dust should not be inhaled[4]
Post-Processing
Sanding & machiningSands well and takes filler before painting[1]Sands and machines well; the toughness means it cuts rather than chips[21]
Gluing & solvent weldingSolvent-welds with acetone[6]Cyanoacrylate; dichloromethane solvent-welds PC but is a laboratory reagent[21]
Vapour / chemical smoothingAcetone vapour smoothing works — ASA dissolves in acetone[6]No practical vapour smoothing[21]
Support material pairingHIPS breaks away or dissolves in d-limonene; Bambu Lab sells a dedicated Support for ABS that also serves ASA[20]Prints its own supports; 3DXTech sells a dedicated PC break-away support[21]
Dimensional accuracy & detailWarping and cooling-stress cracking are the accuracy limits; Stratasys notes the matte finish as a deliberate aesthetic advantage[20][19]Not documented
Solvents & Solubility
Soluble inAcetone dissolves it (Polymaker); MEK, THF, ethyl acetate and the chlorinated solvents dissolve the styrenic backbone.[37][6]Dichloromethane and chloroform dissolve the matrix and leave the fibre; DMF and dioxane do the same (Covestro).[38]
Softened or crazed byLimonene attacks some grades — Prusa reports Prusament ASA Orange flaking apart as layer adhesion fails.[39]Methanol, butyl acetate, ether, 1 % NaOH and phthalate plasticisers stress-crack it; acetone, MEK and xylene swell it.[38]
Solvent welding & smoothing agentAcetone vapour, ~20 min at 80 °C over 5 mm of liquid (15–40 min across brands); layer adhesion up, tensile slightly down.[40]Dichloromethane cement welds the resin, but the fibre keeps the joint from flowing closed. Controlled carcinogen.[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. ASA — material basics Polymaker Wiki · 2026-08 · doc
  2. Prusament ASA Technical Datasheet v1.1 Prusa Polymers · 2024-05 · tds
  3. Prusament PC Blend Carbon Fiber Technical Datasheet v2.0 Prusa Polymers · 2023-04 · tds
  4. CarbonX Carbon Fiber ezPC Polycarbonate Technical Data Sheet 3DXTech · 2026-08 · tds
  5. Bambu Filament Technical Data Sheet V3.0 — ASA Bambu Lab · 2026-08 · tds
  6. PolyLite ASA Technical Data Sheet Polymaker · 2024-11 · tds
  7. ASA — product page Bambu Lab US Store · 2026-08 · vendor
  8. Polymaker product catalogue Polymaker · 2026-08 · vendor
  9. Printed Solid product catalogue Printed Solid · 2026-08 · vendor
  10. Spectrum PC CF Carbon Black, 1.75 mm / 250 g 3DJAKE · 2026-08 · vendor
  11. 3DXTech product catalogue 3DXTech · 2026-08 · vendor
  12. IEMAI CF-PC 3D Printing Filament product page IEMAI 3D · 2026-08 · vendor
  13. YXPOLYER PC CF product page YXPOLYER · 2026-08 · vendor
  14. Filastruder product catalogue Filastruder · 2026-08 · vendor
  15. ZYLtech ASA-GF Glass Fiber filament — product page ZYLtech · 2026-08 · vendor
  16. IEMAI ASA 3D Printing Filament product page IEMAI 3D · 2026-08 · vendor
  17. SUNLU ASA 3D Printer Filament 1 kg SUNLU · 2026-08 · vendor
  18. YXPOLYER ASA Purple product page YXPOLYER · 2026-08 · vendor
  19. ASA — FDM Material Data Sheet (includes 1000 h QUV exposure results) Stratasys · 2026-08 · tds
  20. ABS / ASA / PC Usage Guide Bambu Lab Wiki · 2026-08 · doc
  21. Polycarbonate — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  22. Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
  23. PC — material basics Polymaker Wiki · 2026-08 · doc
  24. ASA — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  25. Filament Material Guide Prusa Knowledge Base · 2026-08 · doc
  26. CARBONX ezPC+CF — product page (print recommendations) 3DXTech · 2026-08 · doc
  27. Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
  28. Bambu Filament Technical Data Sheet V2.0 — PC Bambu Lab · 2026-08 · tds
  29. Prusament PC Blend Technical Datasheet v1.1 Prusa Polymers · 2022-02 · tds
  30. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  31. ApolloX Technical Data Sheet Formfutura · 2026-08 · tds
  32. Experimental data for creep and dynamic mechanical properties of polycarbonate and polycarbonate/ABS Data in Brief 42:108264 · 2022-06 · paper
  33. Mechanical, Fatigue, and Thermal Characterization of ASA, Nylon 12, PC and PC-ABS Manufactured by Fused Filament Fabrication (FFF) Polymers 18(2):302 · 2026-01 · paper
  34. Prusament ASA — material page Prusa Polymers · 2026-08 · doc
  35. Basalt Fiber Composites with Reduced Thermal Expansion for Additive Manufacturing Polymers 14(15):3216 · 2022-08 · paper
  36. 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
  37. Chemical resistance — resistance of Ensinger plastics to chemicals (DIN 50 014, 23/50) Ensinger · 2026-08 · tds
  38. Makrolon — The chemical resistance (Makrolon 2800, 6 days at 23 °C and 50 °C) Covestro · 2016-12 · tds
  39. HIPS — Knowledge Base Prusa Research · 2026-08 · doc
  40. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc
  41. Weld-On 3 Acrylic Plastic Cement — technical data sheet (shipped as dichloromethane) IPS Corporation · 2002-07 · tds