3D Printing Info

Filament comparison

ASA-GF vs PC

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

Glass-fibre ASA (ASA-GF) guidePolycarbonate (PC) guide

2 selected · all documented properties

Open these two in the interactive comparisonMore ASA-GF comparisonsMore PC comparisons
ASA-GF vs PC — documented properties and sources
PropertyGlass-fibre ASA (ASA-GF)ASAPolycarbonate (PC)PC
Market snapshot
Listing priceUSD/kg; dated snapshots$29.95/kg median; $26.99–$33.99/kg across 3 dated product listings$39.99/kg median; $29.99–$92.00/kg across 9 dated product listings
Identity & Market
Base polymer / chemistryASA reinforced with chopped glass fibre — 10 wt% (Spectrum ASA-X GF10), 15 wt% (ZYLtech ASA-GF)[1][2]Bisphenol-A polycarbonate — an amorphous engineering thermoplastic[3][4]
Densityg/cm³1.07 (ZYLtech) and 1.11 (Spectrum), ISO 1183[1][2]1.19 (Polymaker) to 1.22 (Prusament), ISO 1183; Bambu Lab 1.20; Stratasys specific gravity 1.20 (ASTM D792)[3][5][6][7]
Typical priceUSD/kg1 kg spools cluster near 28[8][9]1 kg spools cluster near 40[6][10][11]
Price range across brandsUSD/kg27–34 across brands; Ambrosia 27, ZYLtech 30, Siraya Tech 34[8][9][12]30–92 across brands; Polymaker PolyLite 30, Bambu Lab 40, Polymaker PolyMax 52, Prusament 59, 3DXTech ezPC 64 and 3DXMAX PC 92[10][6][11][13]
Market availability1–5Niche, a handful of specialist brands[8][1][2]Available from several mainstream brands[6][10][13][11]
Spool sizes & diameters1.75 and 2.85 mm; 1 kg spools[2][8]1.75 and 2.85 mm; 0.5, 0.75, 0.9, 1 and 3 kg spools[10][13][11]
Typical applicationsOutdoor brackets and mounts that need stiffness and dimensional stability under sun and moisture[1][2]Light guides, lenses, under-bonnet automotive parts and impact-loaded housings that must hold shape above 110 °C[4][3]
Diameter tolerance± mm±0.01 at 95 % probability and ±0.02 at 100 % (ZYLtech)[2]±0.03 (Prusament PC Blend)[5]
Printing Parameters
Nozzle temperature°C240–270 (Spectrum); 240–280 (ZYLtech)[1][2]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][3][4]
Bed temperature°C80–100 (Spectrum); 90–110 on PEI (ZYLtech)[1][2]90–115; Prusament 110 ± 10, Bambu Lab 90–110, Polymaker 90–105[5][6][3]
Enclosure / chamber requirement1–5Enclosure recommended[14]Enclosure required (passive) — Polymaker specifies a 70–100 °C chamber, Bambu Lab 45–60 °C and rules out its P1P and A-series machines[3][6][14]
Recommended chamber temperature°CNot documented70–100 (Polymaker); 45–60 (Bambu Lab)[3][6]
Part cooling fan0–20 % (Spectrum)[1]Off or very low — Polymaker specifies off, Prusament 20 % within a 0–30 % range, Bambu Lab 0–60 %[3][5][6]
Bed surface & adhesion aidPEI sheet, BuildTak or an adhesion aid such as Magigoo (Polymaker); Simplify3D also lists Kapton tape and ASA slurry[15][16]Textured PEI with glue when needed (Polymaker); smooth or textured PEI (Bambu Lab)[3][17]
Maximum volumetric flow (mm³/s; see test conditions)mm³/s2.4–5.6 at Spectrum's 30–70 mm/s on a 0.4 mm nozzle at 0.2 mm layer; ZYLtech allows up to 200 mm/s[1][2][18]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][3][4][18]
Warping tendency1–5Moderate — needs adhesion aid or draught shield[14]Severe — heated chamber needed[3][4][14]
Bed-adhesion difficulty1–5Needs a specific surface plus adhesive[15]Needs a specific surface plus adhesive[3][14]
Stringing / oozing tendency1–5Slight — Polymaker advises 1–2 mm retraction at 20–30 mm/s[15]Moderate — retraction tuning needed[4]
Overall printing difficulty1–5Intermediate — dry filament and a tuned profile; ZYLtech requires a hardened nozzle of 0.6 mm or larger[2][1]Advanced — enclosure, hardware upgrades, tuning[4][14]
Extruder requirementZYLtech specifies a hardened nozzle 0.6 mm or larger; Spectrum bases its settings on a 0.5 mm nozzle[2][1]All-metal hotend rated to 300 °C; Polymaker advises larger nozzles and high chamber temperatures to improve bonding[4]
Hardware Wear & Reliability
Nozzle hardness required1–4Hardened steel required — Spectrum recommends ruby or hardened, ZYLtech requires hardened[1][2]Brass fine indefinitely[14]
Abrasiveness1–5Highly abrasive — standard GF composite[1][2]Non-abrasive[3]
Nozzle clog risk1–5Moderate — needs dry filament and a clean nozzle; Prusa lists higher risk of nozzle clogging for glass-filled composites[19]Moderate — needs dry filament and a clean nozzle[4]
Heat-creep / jam sensitivity1–5Slightly sensitive[16]Slightly sensitive[20]
Hotend requirementNo special hotend required[16]All-metal hot end required (Simplify3D); Polymaker advises a hot end rated above 300 °C[20][4]
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Moderate — the ASA matrix takes up 0.40–0.45 % saturated at 25 °C / 55 % RH; no glass-filled grade publishes its own figure[21][22][23]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][4]
Equilibrium moisture content at ~50 % RH%Not documented0.25 saturated at 25 °C / 55 % RH (Bambu Lab); 0.15 after 7 days at 24 °C / 22 % RH (Prusa)[6][5]
Drying temperature & timeNot documented80 °C for 8 h (Bambu Lab); 75 °C for 6 h (Polymaker); 70–80 °C for 6–8 h (Polymaker material guide)[6][3][4]
Symptoms when wetBubbling and popping at the nozzle, stringing and a rough surface[24]Bubbling and popping at the nozzle, stringing, rough surface and weak layers[24]
Effect of moisture on strengthNo dry-versus-conditioned figures are published; Polymaker groups the styrenics as moderate-sensitivity and absorbed water shows as bubbling and poor layer adhesion[24]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[4][24]
Storage requirementSealed with desiccant; Polymaker rates the styrenics moderate-sensitivity[24]Airtight containers with desiccant to prevent reabsorption[4]
Mechanical Properties
Tensile strength (XY)MPa33–36 at break, ISO 527 (ZYLtech; specimen type not stated); Spectrum quotes 55 at break on injection-moulded specimens[2][1]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)[3][25][6][5][26][7]
Young's modulusMPa2540–2890 (ZYLtech; specimen type not stated) and 2550 (Spectrum, injection-moulded), ISO 527[2][1]2110 (Bambu Lab) to 2497 (PolyLite) printed XY, ISO 527; Prusament 1900, 3DXTech 2180[6][3][5][26]
Elongation at break%3.4 at break (ZYLtech; specimen type not stated); Spectrum quotes 2.80 at yield on injection-moulded specimens[2][1]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][3][26][5]
Flexural strengthMPaNot documented81.3 (PolyMax) to 108 (Bambu Lab) printed XY, ISO 178; Prusament 88 ± 1, PolyLite 106.1[25][6][5][3]
Flexural modulusMPa2130–2480 flexural modulus, ISO 178 (ZYLtech; specimen type not stated)[2]2050 (PolyMax) to 2640 (PolyLite) printed XY, ISO 178; Prusament 2100[25][3][5]
Charpy impact, notchedkJ/m²8.3 notched Charpy at 23 °C on injection-moulded specimens (Spectrum, ISO 179-1eA); ZYLtech publishes notched Izod 6.9 by ISO 180 instead[1][2]4.1 (PolyLite) to 21.3 (PolyMax) printed XY, ISO 179, notched; Prusament 12 ± 1[3][25][5]
Other impact dataCharpy unnotched 25 kJ/m² at 23 °C on injection-moulded specimens (Spectrum, ISO 179-1eU); ZYLtech notched Izod 6.9 kJ/m² (ISO 180)[1][2]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][25][7]
Layer adhesion / Z tensileMPaNot documented37.1-45.3 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][25][6][7]
Brittleness1–5Brittle — snaps with little warning; elongation at break 3.4 %[2]Tough — absorbs impact, yields before breaking[4][5]
Hardness (scale-specific)Shore A / Shore D / RockwellNot documentedShore 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][27]
Creep resistance / sustained load1–5Good — no creep test found; chopped glass fibre lifts modulus to 2540–2890 against 2379–2450 for unfilled ASA[2][22][21]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)[28]
Fatigue / repeated-flex resistance1–5Below average — no GF-grade S-N curve; elongation at break falls to 3.4 % against 6.7–9.2 % for unfilled ASA[2][22][21]Good[5][4]
Elasticity / flexibility1–5Rigid[2]Rigid[3]
Z strength as % of XY%Not documented59-73 (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][3][7]
Thermal Properties
HDT at 0.45 MPa°C100 (Spectrum, injection-moulded, ISO 75 at 0.45 MPa)[1]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)[25][3][6][5][7]
HDT at 1.8 MPa°C97–99 unannealed (ZYLtech, ISO 75 at 1.8 MPa; specimen type not stated); Spectrum 90 on injection-moulded specimens[2][1]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][3][25][7]
Glass transition (Tg)°CNot documented113 (Polymaker, DSC), 142.5 (Stratasys, ASTM D7426 inflection point) and 145 (Bambu Lab, DSC); Polymaker's material guide quotes 150[3][6][4][7]
Melting point / Vicat°CAmorphous ASA matrix; Vicat 98 (Spectrum, ISO 306). ZYLtech quotes a 210–220 °C melting range by ISO 11357 for its grade[1][2]Amorphous — no melting point; Vicat 117–120 (Polymaker, ISO 306); decomposition above 360 °C[3][25]
Continuous service temperature°C93 — Prusa publishes this as the temperature resistance of Prusament ASA[29]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][27]
Annealing responseNot documented90 °C for 2 h (Polymaker)[3]
Thermal expansion (CTE)µm/m·KNot documented51.6 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][27]
Flammability / UL 94Flammable; no UL 94 rating published[21]Flammable; no UL 94 rating on standard PC, though V-0 grades exist[30][3]
Environment & Chemical
UV resistance1–5Excellent — designed for permanent outdoor use; Spectrum states the parts resist prolonged UV and moisture exposure[1][31]Degrades within weeks outdoors — unstabilised PC yellows and embrittles under UV[4]
Chemical resistanceGood against weak acids, weak alkalis, oils and grease; dissolved by acetone[22]Withstands oils, solvents and fuels; Polymaker rates it good against weak acids[4]
Water / humidity resistance in service1–5Not documentedGood — minor absorption[6]
Food contactNot food safe[15]Bisphenol-A polycarbonate is not offered as food-contact filament[4]
Biodegradability / compostabilityNot biodegradable[15]Not biodegradable[4]
RecyclabilityNot accepted in household plastic collection[15]Mechanically recyclable but not accepted in household plastic collection[4]
Electrical & ESD propertiesNot documentedSurface resistance above 10¹³ ohm/sq — an electrical insulator, which Polymaker lists as a headline advantage[26][4]
Health & Safety
Fume toxicity1–5High — hazardous VOC such as styrene; enclosure and filtration needed[32][14]Moderate — measurable VOCs and UFPs, ventilation advised[32]
Ultrafine-particle emission rateparticles/minNot documented≈4 × 10¹⁰ median — the highest ultrafine-particle rate of the nine filaments in the chamber study, above every ABS tested[32]
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[14][32]Not documented
Ventilation / filtration requirement1–5Enclosure with carbon and HEPA filtration[32][14]Ventilated room or enclosure recommended[32][14]
Dust & fibre handling hazardGlass fibre is bound in the matrix; avoid inhaling sanding dust[1]Not documented
Post-Processing
Sanding & machiningSands well and takes filler before painting[15]Sands and machines well; the toughness means it cuts rather than chips[20]
Painting & finishingPaints readily; ASA holds colour outdoors so many parts are left unpainted[15]Optical clarity survives printing, so transparent parts are usually left unpainted[4]
Gluing & solvent weldingSolvent-welds with acetone[22]Cyanoacrylate; dichloromethane solvent-welds PC but is a laboratory reagent[20]
Vapour / chemical smoothingAcetone vapour smoothing works[22]No practical vapour smoothing[20]
Support material pairingHIPS breaks away or dissolves in d-limonene; Bambu Lab sells a Support for ABS that also serves ASA[14]Prints its own supports; 3DXTech sells a dedicated PC break-away support[20]
Dimensional accuracy & detailNot documentedWarping is the dominant accuracy limit; light transmission 89 % on PolyLite PC (GB/T 2410)[3][4]
Solvents & Solubility
Soluble inAcetone dissolves the resin and leaves the fibre; MEK, THF, ethyl acetate and chlorinated solvents attack the styrenic backbone.[33][22]Dichloromethane, chloroform, DMF and dioxane dissolve it outright (Covestro, 6 days at 23 °C). Laboratory reagents.[34]
Softened or crazed byLimonene attacks some grades — Prusa reports Prusament ASA Orange flaking apart as layer adhesion fails.[35]Methanol, butyl acetate, ether, 1 % NaOH and phthalate plasticisers stress-crack it; acetone, MEK and xylene swell it.[34]
Solvent welding & smoothing agentAcetone vapour reaches only the resin fraction, so the fibre is left standing proud of the smoothed surface.[36][22]Dichloromethane cement welds PC — 16.5 MPa lap shear at one week (IPS Weld-On 3). A controlled carcinogen.[37]

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. Spectrum ASA-X GF10 Technical Data Sheet (mechanical and thermal data marked injection-moulded) Spectrum Filaments · 2026-08 · tds
  2. ZYLtech ASA-GF Filament Technical Data Sheet v1 ZYLtech · 2026-08 · tds
  3. PolyLite PC Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
  4. PC — material basics Polymaker Wiki · 2026-08 · doc
  5. Prusament PC Blend Technical Datasheet v1.1 Prusa Polymers · 2022-02 · tds
  6. Bambu Filament Technical Data Sheet V2.0 — PC Bambu Lab · 2026-08 · tds
  7. PC (Polycarbonate) — FDM Material Data Sheet Stratasys · 2026-04 · tds
  8. Filastruder product catalogue Filastruder · 2026-08 · vendor
  9. ZYLtech ASA-GF Glass Fiber filament — product page ZYLtech · 2026-08 · vendor
  10. Polymaker product catalogue Polymaker · 2026-08 · vendor
  11. Printed Solid product catalogue Printed Solid · 2026-08 · vendor
  12. Siraya Tech Fibreheart ASA-GF Filament product page Siraya Tech · 2026-08 · vendor
  13. 3DXTech product catalogue 3DXTech · 2026-08 · vendor
  14. ABS / ASA / PC Usage Guide Bambu Lab Wiki · 2026-08 · doc
  15. ASA — material basics Polymaker Wiki · 2026-08 · doc
  16. ASA — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  17. Bambu Filament Technical Data Sheet V1.0 — PC FR Bambu Lab · 2026-08 · tds
  18. Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
  19. Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
  20. Polycarbonate — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  21. Bambu Filament Technical Data Sheet V3.0 — ASA Bambu Lab · 2026-08 · tds
  22. PolyLite ASA Technical Data Sheet Polymaker · 2024-11 · tds
  23. Prusament ASA Technical Datasheet v1.1 Prusa Polymers · 2024-05 · tds
  24. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  25. PolyMax PC Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
  26. ezPC Polycarbonate Technical Data Sheet 3DXTech · 2026-08 · tds
  27. TECANAT natural (PC) — stock shape properties Ensinger · 2026-08 · tds
  28. Experimental data for creep and dynamic mechanical properties of polycarbonate and polycarbonate/ABS Data in Brief 42:108264 · 2022-06 · paper
  29. Prusament ASA — material page Prusa Polymers · 2026-08 · doc
  30. PolyMax PC-FR Technical Data Sheet V5.5 Polymaker · 2024-11 · tds
  31. ASA — FDM Material Data Sheet (includes 1000 h QUV exposure results) Stratasys · 2026-08 · tds
  32. 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
  33. Chemical resistance — resistance of Ensinger plastics to chemicals (DIN 50 014, 23/50) Ensinger · 2026-08 · tds
  34. Makrolon — The chemical resistance (Makrolon 2800, 6 days at 23 °C and 50 °C) Covestro · 2016-12 · tds
  35. HIPS — Knowledge Base Prusa Research · 2026-08 · doc
  36. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc
  37. Weld-On 3 Acrylic Plastic Cement — technical data sheet (shipped as dichloromethane) IPS Corporation · 2002-07 · tds