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ASA · Material guide

Carbon-fibre ASA (ASA-CF)

ASA with chopped carbon fibre: Young's modulus rises from 2450 to 4200 MPa and HDT from 100 to 110 °C, while notched Charpy falls to a third and a hardened nozzle becomes mandatory.

5 product listings5 brands
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Understand the material

At a glance

Before you print

Setup difficulty
Intermediate — dry filament and a tuned profile; hardened nozzle mandatory
Nozzle wear
Highly abrasive — standard CF composite
Read conditions and sources ↓
Read the full material overview

ASA with chopped carbon fibre: Young's modulus rises from 2450 to 4200 MPa and HDT from 100 to 110 °C, while notched Charpy falls to a third and a hardened nozzle becomes mandatory.

Applications

ASA-CF combines the outdoor durability of ASA with increased stiffness and dimensional stability. The category is relevant to exposed mechanical mounts and structural fittings where deflection matters more than elastic compliance. 3DXTech markets CarbonX ASA+CF for high-modulus outdoor structural components, and its matte surface is useful on visible equipment parts.

The tradeoff is reduced tolerance for impact and concentrated strain, not a universal improvement over ordinary ASA. Bambu’s grade comparison shows substantially lower notched impact resistance, while the composite remains direction-dependent across layers. Carbon reinforcement also does not establish ESD performance. Use the actual grade’s properties and mount geometry rather than transferring strength or fibre content between manufacturers.

  • Outdoor structural components ↗

    FDM · 3DXTech CarbonX ASA+CF; 15% carbon fibre on the source page · Manufacturer-listed applications

    3DXTech explicitly combines outdoor suitability with high modulus and dimensional stability for CarbonX ASA+CF. It does not identify a particular customer mount or establish a load rating for arbitrary printed geometry.

Sources
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Properties & source data

65 documented fields

Open a topic to explore the complete data. Each value keeps its original conditions, units and dated sources.

Material & market7 fields
Carbon-fibre ASA (ASA-CF) — Identity & Market
Property and unitPublished value and conditionsSources and dates
Base polymer / chemistryASA reinforced with chopped carbon fibre — Formfutura's ApolloX CF10 is 10 wt%
3 sources
Density (g/cm³)1.02 (Bambu Lab), 1.1 (Formfutura ApolloX CF10) and 1.11 (3DXTech), ISO 1183
3 sources
Typical price (USD/kg)1 kg spools cluster near 37
2 sources
Price range across brands (USD/kg)25–90 across brands; IEMAI 25, Ambrosia 33, Bambu Lab 37, Polymaker Fiberon 40, 3DXTech 90
5 sources
Market availability (1–5)Available from several mainstream brands
4 sources
Spool sizes & diameters1.75 and 2.85 mm; 0.5, 0.75 and 1 kg spools
3 sources
Typical applicationsOutdoor structural parts, drone and antenna mounts where stiffness and UV stability both matter
2 sources
Print settings11 fields
Carbon-fibre ASA (ASA-CF) — Printing Parameters
Property and unitPublished value and conditionsSources and dates
Nozzle temperature (°C)250–280 (Bambu Lab)
1 source
Bed temperature (°C)80–100 (Bambu Lab)
1 source
Enclosure / chamber requirement (1–5)Enclosure recommended — Bambu Lab specifies a 45–60 °C chamber
2 sources
Recommended chamber temperature (°C)45–60 (Bambu Lab)
1 source
Part cooling fanFan on (Bambu Lab)
1 source
Bed surface & adhesion aidPEI sheet, BuildTak or an adhesion aid such as Magigoo (Polymaker); Simplify3D also lists Kapton tape and ASA slurry
2 sources
Maximum volumetric flow (mm³/s; see test conditions) (mm³/s)20 at Bambu Lab's 250 mm/s cap on a 0.4 mm nozzle at 0.2 mm layer
2 sources
Warping tendency (1–5)Moderate — needs adhesion aid or draught shield; the fibre reduces warping against unfilled ASA
1 source
Bed-adhesion difficulty (1–5)Needs a specific surface plus adhesive
1 source
Stringing / oozing tendency (1–5)Slight — Polymaker advises 1–2 mm retraction at 20–30 mm/s
1 source
Overall printing difficulty (1–5)Intermediate — dry filament and a tuned profile; hardened nozzle mandatory
1 source
Nozzle wear & reliability5 fields
Carbon-fibre ASA (ASA-CF) — Hardware Wear & Reliability
Property and unitPublished value and conditionsSources and dates
Nozzle hardness required (1–4)Hardened steel required
1 source
Abrasiveness (1–5)Highly abrasive — standard CF composite
1 source
Nozzle clog risk (1–5)Moderate — needs dry filament and a clean nozzle; Prusa lists higher risk of nozzle clogging for fibre-filled composites and Simplify3D a higher tendency to clog
2 sources
Heat-creep / jam sensitivity (1–5)Slightly sensitive
1 source
Hotend requirementNo special hotend required
1 source
Moisture & drying6 fields
Carbon-fibre ASA (ASA-CF) — Moisture Behaviour
Property and unitPublished value and conditionsSources and dates
Moisture absorption (hygroscopicity) (1–5)Moderate — 0.33 % saturated at 25 °C / 55 % RH (Bambu Lab)
1 source
Equilibrium moisture content at ~50 % RH (%)0.33 saturated at 25 °C / 55 % RH (Bambu Lab)
1 source
Drying temperature & time80 °C for 8 h (Bambu Lab)
1 source
Symptoms when wetBubbling and popping at the nozzle, stringing and a rough surface
1 source
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
1 source
Storage requirementSealed with desiccant; Polymaker rates the styrenics moderate-sensitivity
1 source
Strength & mechanical properties13 fields
Carbon-fibre ASA (ASA-CF) — Mechanical Properties
Property and unitPublished value and conditionsSources and dates
Tensile strength (XY) (MPa)34 ± 3 printed XY, ISO 527 (Bambu Lab); 3DXTech quotes 48 at break and Formfutura 79 at 23 °C
3 sources
Young's modulus (MPa)4200 ± 270 printed XY, ISO 527 (Bambu Lab); 3DXTech quotes 5355 and Formfutura 7580
3 sources
Elongation at break (%)9.6 ± 1.4 printed XY, ISO 527 (Bambu Lab); 3DXTech quotes 3 at break and Formfutura 1.8
3 sources
Flexural strength (MPa)72 ± 5 printed XY, ISO 178 (Bambu Lab); 3DXTech quotes 78
2 sources
Flexural modulus (MPa)3740 ± 130 printed XY, ISO 178 (Bambu Lab); 3DXTech quotes 5210
2 sources
Charpy impact, notched (kJ/m²)6.2 ± 1.4 printed XY, ISO 179, notched (Bambu Lab) — a third of unfilled Bambu Lab ASA's 19.6
2 sources
Other impact dataCharpy unnotched 14.0 ± 2.2 printed XY (Bambu Lab, ISO 179), against 41.0 for unfilled Bambu Lab ASA
2 sources
Layer adhesion / Z tensile (MPa)30 ± 4 printed Z, ISO 527 (Bambu Lab); flexural Z falls to 33 against 72 in XY
1 source
Brittleness (1–5)Brittle — snaps with little warning
2 sources
Creep resistance / sustained load (1–5)Good — no creep test found; chopped carbon fibre lifts modulus to 4200 MPa against 2379–2450 for unfilled ASA
2 sources
Fatigue / repeated-flex resistance (1–5)Below average — no CF-grade S-N curve; notched Charpy falls to 6.2 kJ/m² against 19.6 for unfilled Bambu Lab ASA
2 sources
Elasticity / flexibility (1–5)Rigid
1 source
Z strength as % of XY (%)88 by tensile, 46 by flexural (printed, Bambu Lab)
1 source
Heat & temperature4 fields
Carbon-fibre ASA (ASA-CF) — Thermal Properties
Property and unitPublished value and conditionsSources and dates
HDT at 0.45 MPa (°C)110 (ISO 75, 0.45 MPa, Bambu Lab) against 100 for unfilled Bambu Lab ASA
2 sources
HDT at 1.8 MPa (°C)102 (ISO 75, 1.8 MPa, Bambu Lab) against 92 for unfilled Bambu Lab ASA
2 sources
Continuous service temperature (°C)93 — Prusa publishes this as the temperature resistance of Prusament ASA
1 source
Flammability / UL 94Flammable; no UL 94 rating published
1 source
Weather & chemical resistance6 fields
Carbon-fibre ASA (ASA-CF) — Environment & Chemical
Property and unitPublished value and conditionsSources and dates
UV resistance (1–5)Excellent — designed for permanent outdoor use; the acrylate rubber phase is unchanged by the fibre
2 sources
Chemical resistanceGood against weak acids, weak alkalis, oils and grease; dissolved by acetone
1 source
Food contactNot food safe
1 source
Biodegradability / compostabilityNot biodegradable
1 source
RecyclabilityNot accepted in household plastic collection
1 source
Electrical & ESD propertiesSurface resistance above 10⁹ ohm/sq — not static-dissipative (3DXTech, ASTM D257)
1 source
Health & safety4 fields
Carbon-fibre ASA (ASA-CF) — Health & Safety
Property and unitPublished value and conditionsSources and dates
Fume toxicity (1–5)High — hazardous VOC such as styrene; enclosure and filtration needed
2 sources
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
2 sources
Ventilation / filtration requirement (1–5)Enclosure with carbon and HEPA filtration
2 sources
Dust & fibre handling hazardCarbon fibre is bound in the matrix; sanding dust should not be inhaled
1 source
Finishing & post-processing6 fields
Carbon-fibre ASA (ASA-CF) — Post-Processing
Property and unitPublished value and conditionsSources and dates
Sanding & machiningSands well and takes filler before painting
1 source
Painting & finishingPaints readily; ASA holds colour outdoors so many parts are left unpainted
1 source
Gluing & solvent weldingSolvent-welds with acetone
1 source
Vapour / chemical smoothingAcetone vapour smoothing works
1 source
Support material pairingHIPS breaks away or dissolves in d-limonene; Bambu Lab sells a Support for ABS that also serves ASA
1 source
Dimensional accuracy & detailMatte fibre-filled finish hides layer lines
1 source
Solvents & solubility3 fields
Carbon-fibre ASA (ASA-CF) — Solvents & Solubility
Property and unitPublished value and conditionsSources and dates
Soluble inAcetone dissolves the resin and leaves the fibre; MEK, THF, ethyl acetate and chlorinated solvents attack the styrenic backbone.
2 sources
Softened or crazed byLimonene attacks some grades — Prusa reports Prusament ASA Orange flaking apart as layer adhesion fails.
1 source
Solvent welding & smoothing agentAcetone vapour reaches only the resin fraction, so the fibre is left standing proud of the smoothed surface.
2 sources
How to read these values

Values describe representative grades, not every spool. Manufacturer datasheets and independent tests retain their source labels and dates. Printed orientation, test method, conditioning and formulation can change results. Unknown values are —. A listed use is not a certification. Shore A, Shore D and Rockwell hardness are separate scales.

Find a specific filament

Product listings and datasheets

5 listings

Historical USD/kg snapshots. Read each listing’s sale/from qualifiers, spool mass, source date, shipping and tax notes. Product figures are separate from the material summary.

Browse 5 products from 5 brands
IEMAI 3DCF-ASA25.00 USD/kg

$25.00 / 1 kg spool, store.iemai3d.com, Aug 2026 (regular price $26.00)

Hardened steel nozzle required. TDS gives XY and Z figures separately.

Open product listing ↗
IEMAI 3D CF-ASA — product-specific figures
Density (g/cm³)1.02 (ISO 1183)
Nozzle temperature (°C)240-260
Equilibrium moisture content at ~50 % RH (%)0.33 (saturated at 25 C, 55 % RH)
Tensile strength (XY) (MPa)34 +/- 3 (printed XY, ISO 527)
Young's modulus (MPa)4200 +/- 270 (printed XY, ISO 527)
Elongation at break (%)9.6 +/- 1.4 (printed XY, ISO 527)
Flexural strength (MPa)72 +/- 5 (printed XY, ISO 178)
Flexural modulus (MPa)3740 +/- 130 (printed XY, ISO 178)
Charpy impact, notched (kJ/m²)6.2 +/- 1.4 (printed XY, ISO 179, notched)
Layer adhesion / Z tensile (MPa)30 +/- 4 (printed Z, ISO 527)
HDT at 0.45 MPa (°C)110 (ISO 75, 0.45 MPa)
HDT at 1.8 MPa (°C)102 (ISO 75, 1.8 MPa)
Glass transition (Tg) (°C)105 (DSC)
AmbrosiaASA-CF32.99 USD/kg

$32.99 / 1 kg spool; $44.99 for the 2 kg variant = $22.50/kg, filastruder.com, Aug 2026

Handle ambrosia-asa-cf-filament.

Open product listing ↗
Ambrosia ASA-CF — product-specific figures
Density (g/cm³)1.09–1.10 (ISO 1183)
Spool sizes & diameters1 kg and 2 kg spools; 1.75 mm
Diameter tolerance (± mm)0.03
Nozzle temperature (°C)250–280 (Ambrosia recommends 270)
Bed temperature (°C)100–120 (Ambrosia recommends 110)
Recommended chamber temperature (°C)40–120 (Ambrosia recommends 45)
Part cooling fan0–70 %, depending on cooling capability
Tensile strength (XY) (MPa)39–42 (ISO 527; specimen type not stated)
Elongation at break (%)15.5–17.5 (ISO 527; specimen type not stated)
Flexural strength (MPa)80–82.5 (ISO 178; specimen type not stated)
Flexural modulus (MPa)850–900 (specimen type not stated)
Other impact dataIzod impact 10.5–12 kJ/m² (ISO 180; specimen type not stated)
HDT at 0.45 MPa (°C)88 (ISO 75, 0.455 MPa)
Bambu LabASA-CF36.99 USD/kg

$36.99 / 1 kg spool, us.store.bambulab.com, Aug 2026

Young's modulus 4200 MPa against 2450 unfilled; notched Charpy drops from 19.6 to 6.2 kJ/m².

Open product listing ↗
Bambu Lab ASA-CF — product-specific figures
Density (g/cm³)1.02 (ISO 1183)
Young's modulus (MPa)4200 ± 270 (printed XY, ISO 527)
Charpy impact, notched (kJ/m²)6.2 ± 1.4 (printed XY, ISO 179, notched)
HDT at 0.45 MPa (°C)110 (ISO 75, 0.45 MPa)
PolymakerFiberon ASA-CF0839.98 USD/kg

$19.99 / 0.5 kg spool = $39.98/kg, Polymaker product catalogue, Aug 2026

Handle fiberon-asa-cf08.

Open product listing ↗
Polymaker Fiberon ASA-CF08 — product-specific figures
Base polymer / chemistryASA with 8 % chopped carbon fibre
Density (g/cm³)1.09 at 23 °C (ISO 1183)
Nozzle temperature (°C)260–280
Bed temperature (°C)90–100
Part cooling fanOff
Nozzle hardness required (1–4)Hardened steel required — brass nozzle life about 9 h
Equilibrium moisture content at ~50 % RH (%)0.37 equilibrium water absorption
Drying temperature & time90 °C for 6 h
Tensile strength (XY) (MPa)43.5 ± 0.7 (printed XY, ISO 527, 270 °C nozzle, 100 % infill)
Young's modulus (MPa)3612 ± 181 (printed XY, ISO 527)
Elongation at break (%)1.8 ± 0.1 (printed XY, ISO 527); 2.7 printed Z
Flexural strength (MPa)69.1 ± 1.6 (printed XY, ISO 178)
Flexural modulus (MPa)3265 ± 57 (printed XY, ISO 178)
Charpy impact, notched (kJ/m²)5.5 ± 0.14 (printed XY, notched, ISO 179)
Layer adhesion / Z tensile (MPa)25.0 ± 0.4 (printed Z, ISO 527)
HDT at 0.45 MPa (°C)103.0 (ISO 75, 0.45 MPa)
HDT at 1.8 MPa (°C)97.3 (ISO 75, 1.8 MPa)
Glass transition (Tg) (°C)106.6 (DSC)
Melting point / Vicat (°C)Vicat 110.8 (ISO 306)
Flammability / UL 94UL 94 HB at 1.5 mm
Electrical & ESD propertiesSurface resistivity >10^12 Ω (ANSI/ESD S11.11) — insulating
3DXTechCarbonX ASA+CF90.00 USD/kg

$67.50 / 750 g spool = $90.00/kg, 3dxtech.com product catalogue, Aug 2026

Handle carbonx-asa-cf-1. Tensile modulus 5355 MPa, the stiffest here.

Open product listing ↗
3DXTech CarbonX ASA+CF — product-specific figures
Density (g/cm³)1.11 (ISO 1183)
Nozzle temperature (°C)250 (TDS printed-specimen condition)
Bed temperature (°C)110 (TDS printed-specimen condition)
Tensile strength (XY) (MPa)48 at break (ISO 527)
Young's modulus (MPa)5355 (ISO 527)
Elongation at break (%)3 at break (printed XY, ISO 527)
Flexural strength (MPa)78 (printed XY, ISO 178)
Flexural modulus (MPa)5210 (printed XY, ISO 178)
HDT at 0.45 MPa (°C)97 (ISO 75, 0.45 MPa)
Glass transition (Tg) (°C)105 (DSC)
Electrical & ESD propertiesSurface resistance >10^9 Ω/sq (ASTM D257)
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