3D Printing Info

Filament comparison

PA aramid vs PLA HS

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

Aramid-fibre nylon guideHigh-Speed PLA guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PA aramid comparisonsMore PLA HS comparisons
PA aramid vs PLA HS — documented properties and sources
PropertyAramid-fibre nylonPAHigh-Speed PLAPLA
Market snapshot
Listing priceUSD/kg; dated snapshotsNot documented$19.99/kg median; $11.49–$32.99/kg across 10 dated product listings
Identity & Market
Base polymer / chemistryAramid-fibre reinforced polyamide[1]PLA with rheology and crystallisation tuned for high volumetric flow; melt index 15.4 g/10 min vs 7–11 for standard PLA[2][3]
Densityg/cm³Not documented1.23 (ISO 1183, at 21.5 °C)[2]
Typical priceUSD/kgNot documentedMainstream 1 kg spools cluster near 20[4][5][6]
Price range across brandsUSD/kgNot documented11–33 across brands; budget house brands 11–18, Prusament 33[7][8][9]
Market availability1–5Special order, 1–2 makers worldwide — no aramid-filled nylon filament was found in any catalogue searched; the aramid filaments that do exist in the retail market use an ASA matrix[10][11]Stocked by most mainstream brands[12][6][13]
Spool sizes & diametersNot documented1.75 mm; 1 kg spools[4][6]
Typical applicationsNot documentedLarge or repetitive prints on printers that can sustain high flow[14][12]
Diameter tolerance± mmNot documented±0.03 (Bambu Lab PLA Basic, rated to 258 mm/s)[15]
Printing Parameters
Nozzle temperature°CNot documented210–230 for high-speed work; 190–210 at classic speeds[2][12]
Bed temperature°CNot documented30–60 (Polymaker); 35–45 (Bambu Lab)[2][16]
Enclosure / chamber requirement1–5Enclosure required (passive) — as for every nylon[1]Open frame is fine[2]
Part cooling fanNot documentedFan on[2]
Maximum volumetric flow (mm³/s; see test conditions)mm³/sNot documented≈24 at 300 mm/s with a 0.4 mm nozzle and 0.2 mm layer; 30 % more flow than regular PLA at the same temperature[2][12][14][17]
Warping tendency1–5Not documentedNone[2]
Bed-adhesion difficulty1–5Not documentedSticks to anything[18]
Overall printing difficulty1–5Not documentedEasy — minor profile tuning; needs a printer that can actually reach the flow rate[12][2]
Hardware Wear & Reliability
Nozzle hardness required1–4Hardened steel required — no aramid-filled nylon datasheet was obtainable; Polymaker measures about 9 h of brass nozzle life on its fibre-filled nylons[19]Brass fine indefinitely[20]
Abrasiveness1–5Highly abrasive — fibre-reinforced nylon composite[19]Non-abrasive[21][20]
Nozzle clog risk1–5High — jams from moisture, heat creep or particles; nylon already needs a drybox and Prusa names kevlar among the fibres that raise nozzle-clogging risk[22]Very low[20]
Heat-creep / jam sensitivity1–5Not documentedModerate — good heatbreak cooling needed; PLA softens below 60 °C[23]
Hotend requirementNot documentedNo special hot-end required[18]
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Very high (>2 %) — the polyamide matrix governs uptake[24]Moderate — 0.40 % equilibrium at 23 °C / 70 % RH[2]
Equilibrium moisture content at ~50 % RH%Not documented0.40 equilibrium at 23 °C / 70 % RH (Polymaker PolySonic)[2]
Drying temperature & timeNot documented55 °C for 6 h; 50 °C for 8 h (Bambu Lab)[2][16]
Symptoms when wetNot documentedBubbling and popping at the nozzle, stringing, rough surface and weak layers[24]
Effect of moisture on strengthPolymaker's printed dry-versus-wet blocks for its CoPA nylon show what conditioning does to the family: tensile 78.0 → 34.3 MPa and modulus 2703 → 724 MPa, with notched Charpy rising 6.9 → 27.7 kJ/m². Fibre reinforcement reduces but does not remove the effect[25][26]Polymaker rates PLA low-sensitivity — the loss shows as poor layer adhesion and brittle layers rather than a published strength figure[24]
Storage requirementNot documentedSealed with desiccant below 20 % RH; shelf life at ambient is long[16][18]
Mechanical Properties
Tensile strength (XY)MPaNot documented43.9 at 300 mm/s and 46.0 at 46.7 mm/s (printed XY, ISO 527); 58.6 on My Tech Fun bars for Creality Hyper PLA[2][27]
Young's modulusMPaNot documented2650 at 300 mm/s, 2878 at classic speed (printed XY, ISO 527)[2]
Elongation at break%Not documented15.1 at 300 mm/s, 21.5 at classic speed (printed XY, ISO 527)[2]
Flexural strengthMPaNot documented71.4 at 300 mm/s, 76.5 at classic speed (printed XY, ISO 178)[2]
Flexural modulusMPaNot documented2798 at 300 mm/s, 2868 at classic speed (printed XY, ISO 178)[2]
Charpy impact, notchedkJ/m²Not documented5.0 at 300 mm/s, 6.1 at classic speed (printed XY, ISO 179, notched)[2]
Other impact dataNot documentedPrinting at 300 mm/s instead of 46.7 mm/s costs 4.6 % tensile strength and 18 % notched Charpy[2]
Layer adhesion / Z tensileMPaNot documented32.4 at 300 mm/s, 37.3 at classic speed (printed Z, ISO 527); 35.3 for Creality Hyper PLA vs 23.0 for average PLA on identical bars[2][27]
Brittleness1–5Not documentedModerate[2]
Hardness (scale-specific)Shore A / Shore D / RockwellNot documented78.7 Shore D measured on printed bars for Sunlu PLA Meta (My Tech Fun), against 75.3 for the same maker's plain PLA[28]
Creep resistance / sustained load1–5Not documentedPoor — 12 mm bar sagged to 17.7 mm over 6 days at 1.25 kg[27]
Fatigue / repeated-flex resistance1–5Not documentedPoor — no grade-specific S-N curve; plain printed PLA ran 38 000–49 000 cycles at 30 % of tensile strength (R = 0.2)[29][23]
Elasticity / flexibility1–5Not documentedRigid[2]
Z strength as % of XY%Not documented74 at 300 mm/s, 81 at classic speed (printed)[2]
Thermal Properties
HDT at 0.45 MPa°CNot documented53 (ISO 75, 0.45 MPa)[2]
HDT at 1.8 MPa°CNot documented52 (ISO 75, 1.8 MPa)[2]
Glass transition (Tg)°CNot documented59 (DSC)[2]
Melting point / Vicat°CNot documented164 peak melt (DSC); crystallisation 96 °C, Vicat 61 °C[2]
Continuous service temperature°CNot documented53 — loaded bars begin to move at this temperature[27]
Thermal expansion (CTE)µm/m·KNot documented96–99 for plain printed PLA (fibre Bragg grating, 25–50 °C); no grade-specific measurement published[30]
Flammability / UL 94Not documentedFlammable; no UL 94 rating published by the major brands[16][3]
Environment & Chemical
UV resistance1–5Not documentedDegrades within weeks outdoors[23][31]
Chemical resistanceNot documentedGood against weak acids, oils and grease; poor against strong acids and alkalis[2]
Water / humidity resistance in service1–5Not documentedGood — insoluble in water[16]
Food contactNot documentedBase resin is food-contact grade, but printed layer grooves harbour bacteria; Prusa advises against food use[23]
Biodegradability / compostabilityNot documentedIndustrially compostable only — needs sustained 55 °C; not home compostable[32][23]
RecyclabilityNot documentedMechanically recyclable; not accepted in household plastic collection[32]
Health & Safety
Fume toxicity1–5Moderate — measurable VOCs and UFPs, ventilation advised[33]Low hazard — minimal VOC and particle emission[33]
VOC emission rateµg/minUp to 180 caprolactam, the dominant VOC from nylon and the largest single-VOC rate in the study[33]Not documented
Ultrafine-particle emission rateparticles/min≈2 × 10⁸ median for nylon — low for particles despite the highest VOC mass measured[33]Not documented
Hazardous species emittedCaprolactam, at up to 180 µg/min from nylon filament[33]Not documented
Ventilation / filtration requirement1–5Ventilated room or enclosure recommended[33]None needed in a normal room[33]
Post-Processing
Sanding & machiningNot documentedWet sanding — dry sanding heats the surface by friction and smears it[31][23]
Gluing & solvent weldingNot documentedCyanoacrylate for most joints; some grades partially dissolve and bond with acetone[23][34]
Vapour / chemical smoothingNot documentedNo practical vapour smoothing — only chloroform, hot benzene or THF, which are laboratory-only[23]
Support material pairingNot documentedPolySupport and PolyDissolve S1 (Polymaker)[2]
Solvents & Solubility
Soluble inFormic acid, phenol, m-cresol and hexafluoroisopropanol dissolve the matrix at 23 °C, leaving the fibre; laboratory reagents.[35]Chloroform: 10 % w/v in 2–4 h at 23 °C, every grade and morphology; THF and DMF only at 65 °C. Laboratory reagents.[36]
Softened or crazed byZinc chloride solutions stress-crack the nylon matrix, alcoholic calcium chloride dissolves it, mineral acids attack it.[35]Acetone, ethyl acetate and toluene plasticise it but dissolve <1 % even at 65 °C; submersion in acetone crazes and destroys parts.[36][37]
Solvent welding & smoothing agentNone — nylon's only solvents (formic acid, phenol, HFIP) degrade the part, and the fibre blocks surface flow anyway.[35]Chloroform vapour smooths and welds PLA at the cost of tensile strength; acetone does not smooth it at all.[38][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. PA (Nylon) — material basics Polymaker Wiki · 2026-08 · doc
  2. PolySonic PLA Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
  3. PolyLite PLA Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
  4. PolySonic PLA 1.75mm/1kg — product page Polymaker Shop · 2026-08 · vendor
  5. Overture High Speed PLA 1.75mm Overture3D · 2026-08 · vendor
  6. High Speed PLA filament collection Anycubic Official Store · 2026-08 · vendor
  7. PLA Meta filament collection Sunlu Official Store · 2026-08 · vendor
  8. QIDI PLA Rapido 1.75mm 1kg 3D Printers Depot · 2026-08 · vendor
  9. Prusament PLA Prusa Pro Green 1kg (NFC) Prusa Research · 2026-08 · vendor
  10. Polymaker product catalogue Polymaker · 2026-08 · vendor
  11. 3DXTech product catalogue 3DXTech · 2026-08 · vendor
  12. PolySonic PLA — product page Polymaker · 2026-08 · vendor
  13. Creality PLA filament collection Creality Official Store · 2026-08 · vendor
  14. Polymaker Launches New High-Speed 3D Printing Filament — PolySonic PLA & PLA Pro Polymaker · 2023-11 · doc
  15. PLA Basic — product page Bambu Lab US Store · 2026-08 · vendor
  16. Bambu Filament Technical Data Sheet V3.0 — PLA Basic Bambu Lab · 2026-08 · tds
  17. Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
  18. PLA — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  19. Fiberon PA6-CF20 Technical Data Sheet V1.1 Polymaker · 2024-12 · tds
  20. Filament Material Guide Prusa Knowledge Base · 2026-08 · doc
  21. Prusament PLA — material page Prusa Polymers · 2026-08 · doc
  22. Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
  23. PLA — material guide Prusa Knowledge Base · 2026-08 · doc
  24. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  25. PolyMide CoPA Technical Data Sheet V5.4 (dry and wet status blocks) Polymaker · 2024-11 · tds
  26. Moisture Conditioning — effect on printed nylon properties Polymaker Wiki · 2026-08 · doc
  27. Creality Hyper PLA filament review — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  28. Carbon Fiber PLA vs META-PLA vs PLA+ vs PLA by Sunlu — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  29. Mechanical Properties of Additively Manufactured Polymeric Materials — PLA and PETG — For Biomechanical Applications Polymers 16(13):1868 · 2024-06 · paper
  30. Characterization of Thermal Expansion Coefficient of 3D Printing Polymeric Materials Using Fiber Bragg Grating Sensors Materials 17(18):4668 · 2024-09 · paper
  31. Prusament PLA Technical Data Sheet v1.0 Prusa Polymers · 2018-09 · tds
  32. Filamentive PLA (recycled) — product page Filamentive · 2026-08 · vendor
  33. 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
  34. Prusament rPLA Corn Pigment 1kg — product page Prusa Research · 2026-08 · vendor
  35. Ultramid Nylon Chemical Resistance guide (unmodified PA6 B27E and PA66 A27E) BASF · 2026-08 · tds
  36. Solubility Study of Ingeo Biopolymer Grades in Common Organic Solvents (NWPD003) NatureWorks · 2019-10 · tds
  37. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc
  38. Effect of vapour smoothing in trichloromethane on 3D printed PLA — surface, mechanical and chemical structure Pitale, Keche & Chopra, Engineering Research Express 6(4) 045579 · 2024-12 · paper