3D Printing Info

Filament comparison

ASA-GF vs PC-ESD

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

Glass-fibre ASA (ASA-GF) guideESD-safe PC guide

2 selected · all documented properties

Open these two in the interactive comparisonMore ASA-GF comparisonsMore PC-ESD comparisons
ASA-GF vs PC-ESD — documented properties and sources
PropertyGlass-fibre ASA (ASA-GF)ASAESD-safe PCPC
Market snapshot
Listing priceUSD/kg; dated snapshots$29.95/kg median; $26.99–$33.99/kg across 3 dated product listings$180.00/kg median; $180.00–$180.00/kg across 1 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]Polycarbonate compounded with a conductive filler for static-dissipative parts[3]
Densityg/cm³1.07 (ZYLtech) and 1.11 (Spectrum), ISO 1183[1][2]1.24 (ISO 1183, 3DXTech); Stratasys specific gravity 1.195 (ASTM D792)[3][4]
Typical priceUSD/kg1 kg spools cluster near 28[5][6]1 kg-equivalent spools cluster near 180[7]
Price range across brandsUSD/kg27–34 across brands; Ambrosia 27, ZYLtech 30, Siraya Tech 34[5][6][8]180 at 3DXTech's 750 g pricing — the most expensive material in this group[7]
Market availability1–5Niche, a handful of specialist brands[5][1][2]Special order, 1–2 makers worldwide[7]
Spool sizes & diameters1.75 and 2.85 mm; 1 kg spools[2][5]1.75 and 2.85 mm; 750 g spools plus Stratasys-compatible cartridges[7]
Typical applicationsOutdoor brackets and mounts that need stiffness and dimensional stability under sun and moisture[1][2]Electronics fixtures and trays that need PC heat resistance and static dissipation together[3]
Diameter tolerance± mm±0.01 at 95 % probability and ±0.02 at 100 % (ZYLtech)[2]Not documented
Printing Parameters
Nozzle temperature°C240–270 (Spectrum); 240–280 (ZYLtech)[1][2]Not documented
Bed temperature°C80–100 (Spectrum); 90–110 on PEI (ZYLtech)[1][2]Not documented
Enclosure / chamber requirement1–5Enclosure recommended[9]Enclosure required (passive)[9][10]
Part cooling fan0–20 % (Spectrum)[1]Not documented
Bed surface & adhesion aidPEI sheet, BuildTak or an adhesion aid such as Magigoo (Polymaker); Simplify3D also lists Kapton tape and ASA slurry[11][12]PEI with a glue stick or a commercial adhesive[13]
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][14]Not documented
Warping tendency1–5Moderate — needs adhesion aid or draught shield[9]Severe — heated chamber needed[9][10]
Bed-adhesion difficulty1–5Needs a specific surface plus adhesive[11]Needs a specific surface plus adhesive[13][15]
Stringing / oozing tendency1–5Slight — Polymaker advises 1–2 mm retraction at 20–30 mm/s[11]Moderate — retraction tuning needed; Polymaker flags stringing as a common PC problem[15]
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[9]
Extruder requirementZYLtech specifies a hardened nozzle 0.6 mm or larger; Spectrum bases its settings on a 0.5 mm nozzle[2][1]Not documented
Hardware Wear & Reliability
Nozzle hardness required1–4Hardened steel required — Spectrum recommends ruby or hardened, ZYLtech requires hardened[1][2]Hardened steel required[3]
Abrasiveness1–5Highly abrasive — standard GF composite[1][2]Moderately abrasive — conductive carbon filler[3]
Nozzle clog risk1–5Moderate — needs dry filament and a clean nozzle; Prusa lists higher risk of nozzle clogging for glass-filled composites[16]Moderate — needs dry filament and a clean nozzle; 3DXTech lists no special nozzle concerns but a 120 °C pre-dry[17]
Heat-creep / jam sensitivity1–5Slightly sensitive[12]Slightly sensitive[13]
Hotend requirementNo special hotend required[12]All-metal hot end required (Simplify3D)[13]
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[18][19][20]Low (0.1–0.3 %) — the PC matrix takes up 0.15–0.25 % and 3DXTech specifies a 120 °C, 4 h pre-dry[21][22][17]
Symptoms when wetBubbling and popping at the nozzle, stringing and a rough surface[23]Bubbling and popping at the nozzle, stringing and a rough surface[23]
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[23]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[15][23]
Storage requirementSealed with desiccant; Polymaker rates the styrenics moderate-sensitivity[23]Airtight containers with desiccant to prevent reabsorption[15]
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]68 at break (printed XY, ISO 527, 3DXTech) — above the 58 of 3DXTech's unfilled ezPC; Stratasys prints 47.6-49.4 at yield in XZ (ASTM D638)[3][24][4]
Young's modulusMPa2540–2890 (ZYLtech; specimen type not stated) and 2550 (Spectrum, injection-moulded), ISO 527[2][1]2300 (printed XY, ISO 527); Stratasys prints 1960 in XZ and 1810-1910 in ZX (ASTM D638)[3][4]
Elongation at break%3.4 at break (ZYLtech; specimen type not stated); Spectrum quotes 2.80 at yield on injection-moulded specimens[2][1]6 at break (printed XY, ISO 527), against 14 for the unfilled grade[3][24]
Flexural strengthMPaNot documented95 (printed XY, ISO 178); Stratasys prints 82.6-83.2 at break in XZ against 46.3-49.5 in ZX (ASTM D790)[3][4]
Flexural modulusMPa2130–2480 flexural modulus, ISO 178 (ZYLtech; specimen type not stated)[2]2310 (printed XY, ISO 178)[3]
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]Not documented
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]Not documented
Layer adhesion / Z tensileMPaNot documented32.5-37.9 at yield printed ZX (Stratasys, ASTM D638 on the Fortus 450mc and F900)[4]
Brittleness1–5Brittle — snaps with little warning; elongation at break 3.4 %[2]Moderate[3]
Hardness (scale-specific)Shore A / Shore D / RockwellNot documentedRockwell 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 an ESD grade[25]
Creep resistance / sustained load1–5Good — no creep test found; chopped glass fibre lifts modulus to 2540–2890 against 2379–2450 for unfilled ASA[2][19][18]Excellent — holds load for years. Moulded unfilled PC was still running unbroken under 41 MPa tensile creep at room temperature when the test was stopped, and the conductive filler leaves the glass transition unchanged at 142 °C, so the creep mechanism is polycarbonate's[26][4]
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][19][18]Not documented
Elasticity / flexibility1–5Rigid[2]Rigid[3]
Z strength as % of XY%Not documented68-77 (Stratasys ZX against XZ tensile yield, ASTM D638)[4]
Thermal Properties
HDT at 0.45 MPa°C100 (Spectrum, injection-moulded, ISO 75 at 0.45 MPa)[1]143-146 printed in XY, XZ and ZX (Stratasys, ASTM D648 Method B at 66 psi); 135 moulded[4]
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]140-144 printed in XY, XZ and ZX (Stratasys, ASTM D648 Method B at 264 psi); 124 moulded[4]
Glass transition (Tg)°CNot documented143 (DSC, 3DXTech) and 142 (Stratasys, ASTM D7426)[3][4]
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]Not documented
Continuous service temperature°C93 — Prusa publishes this as the temperature resistance of Prusament ASA[27]113 — Prusa publishes this as the temperature resistance of Prusament PC Blend[22]
Thermal expansion (CTE)µm/m·KNot documented68.4 on extruded unfilled PC stock (ASTM D696; source states 3.8e-5 in/in/°F); no figure is published for a conductive-filled grade[25]
Flammability / UL 94Flammable; no UL 94 rating published[18]Not documented
Environment & Chemical
UV resistance1–5Excellent — designed for permanent outdoor use; Spectrum states the parts resist prolonged UV and moisture exposure[1][28]Not documented
Chemical resistanceGood against weak acids, weak alkalis, oils and grease; dissolved by acetone[19]Withstands oils, solvents and fuels; Polymaker rates it good against weak acids[15]
Food contactNot food safe[11]Bisphenol-A polycarbonate is not offered as food-contact filament[15]
Biodegradability / compostabilityNot biodegradable[11]Not biodegradable[15]
RecyclabilityNot accepted in household plastic collection[11]Mechanically recyclable but not accepted in household plastic collection[15]
Electrical & ESD propertiesNot documentedSurface resistance 10⁷–10⁹ ohm/sq, the static-dissipative band (ASTM D257), against above 10¹³ for unfilled ezPC[3][24]
Health & Safety
Fume toxicity1–5High — hazardous VOC such as styrene; enclosure and filtration needed[29][9]Moderate — measurable VOCs and UFPs, ventilation advised[29]
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[29]
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[9][29]Not documented
Ventilation / filtration requirement1–5Enclosure with carbon and HEPA filtration[29][9]Ventilated room or enclosure recommended[29][9]
Dust & fibre handling hazardGlass fibre is bound in the matrix; avoid inhaling sanding dust[1]Conductive carbon filler is bound in the matrix; avoid inhaling sanding dust[3]
Post-Processing
Sanding & machiningSands well and takes filler before painting[11]Sands and machines well; the toughness means it cuts rather than chips[13]
Painting & finishingPaints readily; ASA holds colour outdoors so many parts are left unpainted[11]Not documented
Gluing & solvent weldingSolvent-welds with acetone[19]Cyanoacrylate; dichloromethane solvent-welds PC but is a laboratory reagent[13]
Vapour / chemical smoothingAcetone vapour smoothing works[19]No practical vapour smoothing[13]
Support material pairingHIPS breaks away or dissolves in d-limonene; Bambu Lab sells a Support for ABS that also serves ASA[9]Prints its own supports; 3DXTech sells a dedicated PC break-away support[13]
Solvents & Solubility
Soluble inAcetone dissolves the resin and leaves the fibre; MEK, THF, ethyl acetate and chlorinated solvents attack the styrenic backbone.[30][19]Dichloromethane, chloroform, DMF and dioxane dissolve it outright (Covestro, 6 days at 23 °C). Laboratory reagents.[31]
Softened or crazed byLimonene attacks some grades — Prusa reports Prusament ASA Orange flaking apart as layer adhesion fails.[32]Methanol, butyl acetate, ether, 1 % NaOH and phthalate plasticisers stress-crack it; acetone, MEK and xylene swell it.[31]
Solvent welding & smoothing agentAcetone vapour reaches only the resin fraction, so the fibre is left standing proud of the smoothed surface.[33][19]Dichloromethane cement welds PC — 16.5 MPa lap shear at one week (IPS Weld-On 3). A controlled carcinogen.[34]

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