3D Printing Info

Filament comparison

ASA-GF vs PPA-CF

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

Glass-fibre ASA (ASA-GF) guidePPA-CF (carbon-fibre polyphthalamide) guide

2 selected · all documented properties

Open these two in the interactive comparisonMore ASA-GF comparisonsMore PPA-CF comparisons
ASA-GF vs PPA-CF — documented properties and sources
PropertyGlass-fibre ASA (ASA-GF)ASAPPA-CF (carbon-fibre polyphthalamide)PA
Market snapshot
Listing priceUSD/kg; dated snapshots$29.95/kg median; $26.99–$33.99/kg across 3 dated product listings$84.99/kg median; $21.99–$266.67/kg across 7 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]Polyphthalamide — semi-aromatic nylon — with 10–15 wt% chopped carbon fibre; Bambu Lab lists the composition as semi-aromatic nylon plus carbon fibre, Raise3D and Siraya Tech state 15 wt%, Flashforge 10 %[3][4][5][6]
Densityg/cm³1.07 (ZYLtech) and 1.11 (Spectrum), ISO 1183[1][2]1.15 (Raise3D) to 1.25 (Bambu Lab and IEMAI 3D), ISO 1183; Flashforge 1.21–1.23[3][4][5][7]
Typical priceUSD/kg1 kg spools cluster near 28[8][9]1 kg-equivalent spools span 22–267; the middle of the market is about 85[10][11][12][13][14][15]
Price range across brandsUSD/kg27–34 across brands; Ambrosia 27, ZYLtech 30, Siraya Tech 34[8][9][16]22–267 across brands; CHCKX 22 on Amazon, IEMAI 3D 51, Siraya Tech 57 and 85, Bambu Lab 200 at 750 g, Raise3D 209, 3DXTech CarbonX HTN+CF 267 at 750 g[10][11][12][17][13][14][15]
Market availability1–5Niche, a handful of specialist brands[8][1][2]Available from several mainstream brands[10][11][12][13][14]
Spool sizes & diameters1.75 and 2.85 mm; 1 kg spools[2][8]1.75 mm; 750 g, 1 kg, 2 kg and 2.5 kg spools[3][12][14]
Typical applicationsOutdoor brackets and mounts that need stiffness and dimensional stability under sun and moisture[1][2]Under-bonnet automotive brackets, jigs and end-use parts that must stay stiff above the 100 °C working ceiling of PA6-CF[4][5]
Diameter tolerance± mm±0.01 at 95 % probability and ±0.02 at 100 % (ZYLtech)[2]0.05 (Bambu Lab and Siraya Tech, 1.75 mm)[3][6]
Printing Parameters
Nozzle temperature°C240–270 (Spectrum); 240–280 (ZYLtech)[1][2]280–310 (Bambu Lab and CHCKX); 280–320 (Siraya Tech)[3][6][15]
Bed temperature°C80–100 (Spectrum); 90–110 on PEI (ZYLtech)[1][2]100–120 (Bambu Lab and CHCKX); Siraya Tech runs cooler at 70–90[3][6][15]
Enclosure / chamber requirement1–5Enclosure recommended[18]Enclosure required (passive) — Bambu Lab specifies a 50–80 °C chamber and Siraya Tech requires an enclosure, while Flashforge states its LUVOCOM-based grade prints on machines with no heated chamber[3][5][12]
Recommended chamber temperature°CNot documented50–80 (Bambu Lab); specimens were printed at a 52 °C chamber and Bambu Lab notes 70–80 °C raises Z properties[3]
Part cooling fan0–20 % (Spectrum)[1]Bambu Lab turns the part fan on; Siraya Tech runs it off[3][6]
Bed surface & adhesion aidPEI sheet, BuildTak or an adhesion aid such as Magigoo (Polymaker); Simplify3D also lists Kapton tape and ASA slurry[19][20]Smooth or textured PEI plate with a glue stick, or a PVP glue coating[3][6]
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][21]8–12 mm³/s at 300–320 °C (Siraya Tech)[6]
Warping tendency1–5Moderate — needs adhesion aid or draught shield[18]Not documented
Bed-adhesion difficulty1–5Needs a specific surface plus adhesive[19]Not documented
Stringing / oozing tendency1–5Slight — Polymaker advises 1–2 mm retraction at 20–30 mm/s[19]Not documented
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; a 320 °C hot end and a hardened nozzle are the entry requirements[3][6]
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 — Siraya Tech and CHCKX specify hardened steel or better, Raise3D warns brass wears quickly[4][6][15]
Abrasiveness1–5Highly abrasive — standard GF composite[1][2]Highly abrasive — standard CF/GF composites and glow fills[4][6]
Nozzle clog risk1–5Moderate — needs dry filament and a clean nozzle; Prusa lists higher risk of nozzle clogging for glass-filled composites[22]Moderate — needs dry filament and a clean nozzle; Siraya Tech states nozzles below 0.4 mm will clog[6][12]
Heat-creep / jam sensitivity1–5Slightly sensitive[20]Not documented
Hotend requirementNo special hotend required[20]Not documented
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[23][24][25]High (0.8–2 %) — 1.30 % saturated at 25 °C / 55 % RH for Bambu Lab and IEMAI 3D against 2.35 % for the same makers' PA6-CF, which is the whole reason to pay for PPA[3][7][26]
Equilibrium moisture content at ~50 % RH%Not documented1.30 saturated at 25 °C / 55 % RH (Bambu Lab and IEMAI 3D) against 2.35 for their PA6-CF; Siraya Tech 1.37 and 1.09 by ISO 62, Raise3D 0.6 by ISO 62 Method 1, Flashforge below 0.1 at 23 °C / 24 h[3][4][5][6][27][7][26]
Drying temperature & timeNot documented100–140 °C for 8–12 h (Bambu Lab, hotter is better within that range); Siraya Tech 100 °C for 4–6 h; Raise3D 80–100 °C for 6–12 h[3][4][6]
Symptoms when wetBubbling and popping at the nozzle, stringing and a rough surface[28]Not documented
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[28]Not documented
Storage requirementSealed with desiccant; Polymaker rates the styrenics moderate-sensitivity[28]Sealed below 20 % RH with desiccant (Bambu Lab); Raise3D keeps the spool in a dry box throughout the print[3][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]95–168 (printed XY, ISO 527): Siraya Tech 95, Flashforge 108–112, Siraya Tech Core 112, Raise3D 122 conditioned and annealed, Bambu Lab and IEMAI 3D 168[3][4][5][6][27][7]
Young's modulusMPa2540–2890 (ZYLtech; specimen type not stated) and 2550 (Spectrum, injection-moulded), ISO 527[2][1]7100–11800 (printed XY): Flashforge 7100–8000, Raise3D and Siraya Tech 7800, Siraya Tech Core 9300, Bambu Lab and IEMAI 3D 11800[3][4][5][6][27][7]
Elongation at break%3.4 at break (ZYLtech; specimen type not stated); Spectrum quotes 2.80 at yield on injection-moulded specimens[2][1]1.9–5 at break (printed XY): Raise3D 1.9, Siraya Tech 2, Siraya Tech Core 2.25, Bambu Lab and IEMAI 3D 3.2, Flashforge 3.5–5[3][4][5][6][27][7]
Flexural strengthMPaNot documented145–221 (printed XY, ISO 178): Siraya Tech 145, Siraya Tech Core 178, Raise3D 190, Bambu Lab and IEMAI 3D 208, Flashforge 210–221[3][4][5][6][27][7]
Flexural modulusMPa2130–2480 flexural modulus, ISO 178 (ZYLtech; specimen type not stated)[2]6500–9860 (printed XY, ISO 178): Flashforge 6500–7000, Siraya Tech 6800, Raise3D 8510, Siraya Tech Core 8700, Bambu Lab and IEMAI 3D 9860[3][4][5][6][27][7]
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]6.5 notched Charpy XY (Bambu Lab and IEMAI 3D, ISO 179); Raise3D 7.8 and Siraya Tech 11 by ISO 179 without stating notched[3][4][6][7]
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]Bambu Lab and IEMAI 3D unnotched Charpy 41.7 kJ/m² XY against 4.3 in Z; Flashforge Izod 9–11 kJ/m² XY against 2.5–3 in Z[3][5][7]
Layer adhesion / Z tensileMPaNot documented57 printed Z (Bambu Lab and IEMAI 3D, ISO 527); Raise3D measures 30.2 by a custom mono-layer method[3][4][7]
Brittleness1–5Brittle — snaps with little warning; elongation at break 3.4 %[2]Brittle — snaps with little warning; 2–3 % elongation at break is typical[3][4][6]
Creep resistance / sustained load1–5Good — no creep test found; chopped glass fibre lifts modulus to 2540–2890 against 2379–2450 for unfilled ASA[2][24][23]Good — Flashforge cites outstanding creep resistance at high temperature and Raise3D high creep resistance, both against other nylons[4][5]
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][24][23]Not documented
Elasticity / flexibility1–5Rigid[2]Rigid[3]
Z strength as % of XY%Not documented34 (Bambu Lab and IEMAI 3D, Z against XY tensile, ISO 527)[3][7]
Thermal Properties
HDT at 0.45 MPa°C100 (Spectrum, injection-moulded, ISO 75 at 0.45 MPa)[1]188–227 (ISO 75 at 0.45 MPa): Raise3D 188, Flashforge 220, Bambu Lab and IEMAI 3D 227; Siraya Tech reaches 192–199 only after annealing, 84.5–97 unannealed[3][4][5][6][27][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]113–196 (ISO 75 at 1.8 MPa): Raise3D 113, Bambu Lab and IEMAI 3D 196; Siraya Tech reaches 119–126 only after annealing, 82.5–84 unannealed[3][4][6][27][7]
Glass transition (Tg)°CNot documented80 (Siraya Tech, ASTM D3418) to 85 (Bambu Lab and IEMAI 3D, DSC)[3][6][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]Melting point 231 (Raise3D) to 258 (Bambu Lab and IEMAI 3D); Vicat softening 230–238 (ISO 306)[3][4][6][27][7]
Continuous service temperature°C93 — Prusa publishes this as the temperature resistance of Prusament ASA[29]120 (Flashforge, IEC 60216, LUVOCOM PPA-CF)[5]
Annealing responseNot documentedBambu Lab anneals at 120–140 °C for 6–12 h; Raise3D at 80–100 °C for 8 h and warns of up to 0.5 % Z shrinkage. On Siraya Tech's grades annealing lifts HDT at 0.45 MPa from 84.5 to 192 °C while notched Charpy falls from 11 to 6.3 kJ/m²[3][4][6]
Flammability / UL 94Flammable; no UL 94 rating published[23]Flammable; Bambu Lab lists water, carbon oxides and nitrogen oxides as combustion products. No UL 94 rating is published for the filament grades surveyed[3]
Environment & Chemical
UV resistance1–5Excellent — designed for permanent outdoor use; Spectrum states the parts resist prolonged UV and moisture exposure[1][30]Not documented
Chemical resistanceGood against weak acids, weak alkalis, oils and grease; dissolved by acetone[24]Better than general nylon against weak acids, weak alkalis, most organic solvents and most oils and greases (Bambu Lab); not resistant to strong acids or strong alkalis[3]
Water / humidity resistance in service1–5Not documentedGood — minor absorption; 1.3 % saturated moisture is roughly half what PA6-CF takes up[3][26]
Food contactNot food safe[19]Not documented
Biodegradability / compostabilityNot biodegradable[19]Not documented
RecyclabilityNot accepted in household plastic collection[19]Not documented
Electrical & ESD propertiesNot documentedFlashforge's data sheet gives a surface resistance of 10³ Ω or below (IEC 60093) for its LUVOCOM-based PPA-CF — the carbon loading makes it conductive rather than merely dissipative[5]
Health & Safety
Fume toxicity1–5High — hazardous VOC such as styrene; enclosure and filtration needed[31][18]Not documented
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[18][31]Not documented
Ventilation / filtration requirement1–5Enclosure with carbon and HEPA filtration[31][18]Not documented
Dust & fibre handling hazardGlass fibre is bound in the matrix; avoid inhaling sanding dust[1]Chopped carbon fibre; dry sanding and cutting release respirable fibre-laden dust[32]
Post-Processing
Sanding & machiningSands well and takes filler before painting[19]Not documented
Painting & finishingPaints readily; ASA holds colour outdoors so many parts are left unpainted[19]Not documented
Gluing & solvent weldingSolvent-welds with acetone[24]Not documented
Vapour / chemical smoothingAcetone vapour smoothing works[24]Not documented
Support material pairingHIPS breaks away or dissolves in d-limonene; Bambu Lab sells a Support for ABS that also serves ASA[18]Bambu Lab pairs it with Support for PA/PET; Raise3D warns that PPA-CF used as its own support bonds permanently to the model once it takes up moisture, so supports must come off before annealing[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][24]Formic acid, phenol, m-cresol and hexafluoroisopropanol dissolve the matrix at 23 °C, leaving the fibre; laboratory reagents.[34]
Softened or crazed byLimonene attacks some grades — Prusa reports Prusament ASA Orange flaking apart as layer adhesion fails.[35]Zinc chloride solutions stress-crack the nylon matrix, alcoholic calcium chloride dissolves it, mineral acids attack it.[34]
Solvent welding & smoothing agentAcetone vapour reaches only the resin fraction, so the fibre is left standing proud of the smoothed surface.[36][24]None — nylon's only solvents (formic acid, phenol, HFIP) degrade the part, and the fibre blocks surface flow anyway.[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. Bambu Filament Technical Data Sheet V1.0 — PPA-CF Bambu Lab · 2026-08 · tds
  4. Raise3D Industrial PPA CF Technical Data Sheet V2.0 Raise3D · 2022-04 · tds
  5. Flashforge PPA-CF Filament Technical Data Sheet (LUVOCOM PPA-CF, 10 % carbon fibre) Flashforge · 2026-08 · tds
  6. Siraya Tech Fibreheart PPA-CF Technical Data Sheet Siraya Tech · 2026-08 · tds
  7. IEMAI 3D CF-PPA Technical Data Sheet IEMAI 3D · 2025-04 · tds
  8. Filastruder product catalogue Filastruder · 2026-08 · vendor
  9. ZYLtech ASA-GF Glass Fiber filament — product page ZYLtech · 2026-08 · vendor
  10. PPA-CF — Bambu Lab US Store Bambu Lab · 2026-08 · vendor
  11. Raise3D Industrial PPA CF Filament 1.75 mm (1 kg) — product listing MatterHackers · 2026-08 · vendor
  12. Fibreheart PPA-CF Filament — product page Siraya Tech · 2026-08 · vendor
  13. IEMAI 3D CF-PPA 3D Printing Filament — store page IEMAI 3D · 2026-08 · vendor
  14. CARBONX HTN+CF — product page 3DXTech · 2026-08 · vendor
  15. CHCKX PPA-CF 3D Printing Filament Matte Black 1 kg 1.75 mm 10 % Carbon Fiber — Amazon listing Amazon.com · 2026-08 · vendor
  16. Siraya Tech Fibreheart ASA-GF Filament product page Siraya Tech · 2026-08 · vendor
  17. Siraya Tech Fibreheart PPA-CF Core Filament — product page Siraya Tech · 2026-08 · vendor
  18. ABS / ASA / PC Usage Guide Bambu Lab Wiki · 2026-08 · doc
  19. ASA — material basics Polymaker Wiki · 2026-08 · doc
  20. ASA — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  21. Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
  22. Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
  23. Bambu Filament Technical Data Sheet V3.0 — ASA Bambu Lab · 2026-08 · tds
  24. PolyLite ASA Technical Data Sheet Polymaker · 2024-11 · tds
  25. Prusament ASA Technical Datasheet v1.1 Prusa Polymers · 2024-05 · tds
  26. Bambu Filament Technical Data Sheet V3.0 — PA6-CF Bambu Lab · 2026-08 · tds
  27. Siraya Tech Fibreheart PPA-CF Core Technical Data Sheet Siraya Tech · 2026-08 · tds
  28. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  29. Prusament ASA — material page Prusa Polymers · 2026-08 · doc
  30. ASA — FDM Material Data Sheet (includes 1000 h QUV exposure results) Stratasys · 2026-08 · tds
  31. 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
  32. PET-CF / PPA-CF / PPS-CF / PA6-CF carbon fibre filament usage guide Bambu Lab Wiki · 2026-08 · doc
  33. Chemical resistance — resistance of Ensinger plastics to chemicals (DIN 50 014, 23/50) Ensinger · 2026-08 · tds
  34. Ultramid Nylon Chemical Resistance guide (unmodified PA6 B27E and PA66 A27E) BASF · 2026-08 · tds
  35. HIPS — Knowledge Base Prusa Research · 2026-08 · doc
  36. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc