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Nylon & composites · Material guide

PA11 (Nylon 11)

Bio-based nylon from castor oil, sitting between PA12 and PA6 for moisture. Prusa's grade posts an interlayer adhesion of 32 MPa and a Z-to-XY tensile ratio of 0.84 — the most isotropic…

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Understand the material

At a glance

Where it is used

Tough, chemically resistant functional parts; Prusa targets it at impact-loaded and vibration-loaded components

Sources
Read the full material overview

Bio-based nylon from castor oil, sitting between PA12 and PA6 for moisture. Prusa's grade posts an interlayer adhesion of 32 MPa and a Z-to-XY tensile ratio of 0.84 — the most isotropic filament in their range.

Applications

PA11 is valued for tough, durable parts that tolerate handling, flexing and chemical exposure. Its castor-oil-derived chemistry also provides a renewable feedstock route, although bio-based does not mean biodegradable. Arkema documents PA11 across industrial fluid systems; its PCV-line case describes PA11 and specialized PPA solutions replacing bulkier rubber tubing where flexibility, chemical resistance and reduced weight are valuable.

For FDM, toughness and compliance favor clips, impact-prone housings and vibration-loaded parts more than maximum-rigidity fixtures. Moisture still shifts nylon stiffness and fit, and unfilled PA11 heat-deflection performance is much lower than the service envelope of specialized automotive tubing compounds. Print orientation and the bend geometry govern repeated-flex life, so a tough polymer alone does not ensure a durable hinge.

  • Automotive crankcase-ventilation lines ↗

    Automotive tube manufacture; the case page does not identify one processing route · Rilsan PA11 and Rilsan HT PPA application-specific tubing solutions; not unfilled FDM PA11 · Documented case

    Arkema documents PA11 and specialized Rilsan HT PPA solutions for PCV lines, where thinner and lighter plastic tubing can replace bulky rubber while addressing flexibility and chemical exposure. The case covers more than one polymer and must not be read as a universal PA11 temperature rating.

Sources
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Representative catalog values. Check the exact grade and its linked conditions before using a setting.

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Properties & source data

44 documented fields

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

Material & market6 fields
PA11 (Nylon 11) — Identity & Market
Property and unitPublished value and conditionsSources and dates
Base polymer / chemistryPolyamide 11, polymerised from castor-oil-derived aminoundecanoic acid — a bio-based nylon
2 sources
Density (g/cm³)1.02 (ISO 1183)
1 source
Market availability (1–5)Niche, a handful of specialist brands
1 source
Spool sizes & diameters1.75 mm; 1 kg spools
1 source
Typical applicationsTough, chemically resistant functional parts; Prusa targets it at impact-loaded and vibration-loaded components
1 source
Diameter tolerance (± mm)±0.02 (Prusament)
1 source
Print settings7 fields
PA11 (Nylon 11) — Printing Parameters
Property and unitPublished value and conditionsSources and dates
Nozzle temperature (°C)275 ± 10 (Prusament)
1 source
Bed temperature (°C)100 ± 10 (Prusament)
1 source
Enclosure / chamber requirement (1–5)Enclosure required (passive) — Prusament specifies a 55 ± 5 °C chamber
1 source
Recommended chamber temperature (°C)55 ± 5 (Prusament)
1 source
Bed surface & adhesion aidPA nylon sheet (Prusament)
1 source
Overall printing difficulty (1–5)Advanced — enclosure, hardware upgrades, tuning
2 sources
Extruder requirementPrusa printed its test specimens with a high-flow CHT nozzle
1 source
Nozzle wear & reliability3 fields
PA11 (Nylon 11) — Hardware Wear & Reliability
Property and unitPublished value and conditionsSources and dates
Nozzle hardness required (1–4)Brass fine indefinitely for unfilled grades
1 source
Abrasiveness (1–5)Non-abrasive when unfilled
1 source
Nozzle clog risk (1–5)High — jams from moisture, heat creep or particles
1 source
Moisture & drying5 fields
PA11 (Nylon 11) — Moisture Behaviour
Property and unitPublished value and conditionsSources and dates
Moisture absorption (hygroscopicity) (1–5)High (0.8–2 %) — Prusa measures 0.46 % after 7 days at 22 % RH, but PA11 sits between PA12 and PA6 in the family
2 sources
Equilibrium moisture content at ~50 % RH (%)0.26 after 24 h and 0.46 after 7 days (Prusa Polymers method)
1 source
Symptoms when wetPopping and cracking during extrusion, then hard-to-diagnose defects
1 source
Effect of moisture on strengthPrusa publishes no dry-versus-conditioned columns; the CoPA reference shows the PA-family response — stiffness and strength fall sharply, impact and elongation rise
2 sources
Storage requirementSealed below 20 % RH with desiccant
1 source
Strength & mechanical properties11 fields
PA11 (Nylon 11) — Mechanical Properties
Property and unitPublished value and conditionsSources and dates
Tensile strength (XY) (MPa)38.3 ± 0.8 printed horizontal and 39.5 ± 0.5 printed vertical at yield, ISO 527-1
1 source
Young's modulus (MPa)1200 printed, both orientations, ISO 527-1
1 source
Elongation at break (%)5.6 ± 0.1 at yield, printed, ISO 527-1
1 source
Flexural modulus (MPa)1100 printed horizontal and 1000 printed vertical, ISO 178
1 source
Charpy impact, notched (kJ/m²)12.9 ± 2.1 printed horizontal and 11.7 ± 1.2 printed vertical, ISO 179-1 notched
1 source
Layer adhesion / Z tensile (MPa)32 ± 1 (Prusa Polymers interlayer adhesion test) — the highest interlayer figure Prusa publishes for any of its filaments
1 source
Brittleness (1–5)Tough — absorbs impact, yields before breaking
1 source
Hardness (scale-specific) (Shore A / Shore D / Rockwell)70 Shore D (Prusa Polymers method)
1 source
Fatigue / repeated-flex resistance (1–5)Excellent — living hinges viable
1 source
Elasticity / flexibility (1–5)Semi-flexible
1 source
Z strength as % of XY (%)84 — Prusa publishes a tensile anisotropy coefficient of 0.84, the ratio of Z to XY tensile strength
1 source
Heat & temperature2 fields
PA11 (Nylon 11) — Thermal Properties
Property and unitPublished value and conditionsSources and dates
HDT at 0.45 MPa (°C)58.7 (ISO 75, 0.45 MPa)
1 source
HDT at 1.8 MPa (°C)49.9 (ISO 75, 1.8 MPa)
1 source
Weather & chemical resistance2 fields
PA11 (Nylon 11) — Environment & Chemical
Property and unitPublished value and conditionsSources and dates
Water / humidity resistance in service (1–5)Absorbs water, properties shift
1 source
Biodegradability / compostabilityBio-based — the monomer comes from castor oil
1 source
Health & safety5 fields
PA11 (Nylon 11) — Health & Safety
Property and unitPublished value and conditionsSources and dates
Fume toxicity (1–5)Moderate — measurable VOCs and UFPs, ventilation advised
1 source
VOC emission rate (µg/min)Up to 180 caprolactam, the dominant VOC from nylon; total VOC reached nearly 200 µg/min, the highest of the nine filaments tested
1 source
Ultrafine-particle emission rate (particles/min)≈2 × 10⁸ median — low for ultrafine particles despite the highest VOC mass of any filament tested
1 source
Hazardous species emittedCaprolactam, at up to 180 µg/min from nylon filament — the largest single-VOC emission rate measured in the study
1 source
Ventilation / filtration requirement (1–5)Ventilated room or enclosure recommended
1 source
Solvents & solubility3 fields
PA11 (Nylon 11) — Solvents & Solubility
Property and unitPublished value and conditionsSources and dates
Soluble inDissolved at 23 °C by formic acid, phenol, m-cresol, 96 % sulphuric acid or hexafluoroisopropanol — all laboratory reagents.
2 sources
Softened or crazed byMineral acids, oxidants, halogens and zinc chloride solutions attack the amide bond; ordinary solvents do not (BASF, PA6/66).
1 source
Solvent welding & smoothing agentNone — nylon's only solvents are formic acid, phenol and HFIP, all of which degrade the part they wet.
1 source
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.

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Product listings and datasheets

1 listing

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 1 product from 1 brand
Prusa PolymersPrusament PA11 Carbon Fiber194.98 USD/kg

$155.98 / 800 g = $194.98/kg, 3djake.com, Aug 2026

The carbon-fibre grade; Prusa's unfilled PA11 shares the same datasheet family but no open unfilled listing was found to price. Carbon-fibre filled. The category data comes from Prusa's unfilled Prusament PA11 datasheet; no unfilled PA11 spool was found on sale at any retailer checked.

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Prusa Polymers Prusament PA11 Carbon Fiber — product-specific figures
Density (g/cm³)1.11 (ISO 1183)
Diameter tolerance (± mm)0.04
Nozzle temperature (°C)285 ± 5
Bed temperature (°C)110 ± 10
Part cooling fan20 % part cooling
Equilibrium moisture content at ~50 % RH (%)0.50 after 7 days at 24 °C / 22 % RH (0.20 after 24 h)
Tensile strength (XY) (MPa)42 ± 1 yield printed horizontal, 49 ± 2 printed vertical xz (ISO 527-1)
Young's modulus (MPa)2500 printed horizontal, 3300 printed vertical xz (ISO 527-1)
Elongation at break (%)3.3 ± 0.2 at yield, printed horizontal (ISO 527-1)
Flexural strength (MPa)63 ± 2 printed horizontal, 103 ± 3 vertical xz (ISO 178)
Flexural modulus (MPa)3000 printed horizontal, 6200 vertical xz (ISO 178)
Charpy impact, notched (kJ/m²)12 ± 2 printed horizontal, 17 ± 1 vertical xz (ISO 179-1, edgewise)
Other impact dataCharpy unnotched 30 ± 4 kJ/m² horizontal, 51 ± 4 vertical xz (ISO 179-1)
Layer adhesion / Z tensile (MPa)20 ± 5 interlayer adhesion (Prusa Polymers method)
Hardness (scale-specific) (Shore A / Shore D / Rockwell)77 Shore D (Prusa Polymers method, filament)
HDT at 0.45 MPa (°C)192 (ISO 75, 0.45 MPa)
HDT at 1.8 MPa (°C)152 (ISO 75, 1.8 MPa)

Compare PA11 (Nylon 11) with another filament