3D Printing Info

Filament comparison

PLA Matte vs TPU-CF

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

Matte PLA guideCarbon-fibre TPU guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PLA Matte comparisonsMore TPU-CF comparisons
PLA Matte vs TPU-CF — documented properties and sources
PropertyMatte PLAPLACarbon-fibre TPUFLEX
Market snapshot
Listing priceUSD/kg; dated snapshots$19.09/kg median; $10.99–$32.16/kg across 10 dated product listings$107.05/kg median; $107.05–$107.05/kg across 1 dated product listings
Identity & Market
Base polymer / chemistryPLA compounded with a mineral filler — Fiberlogy names chalk — that scatters light into a diffuse finish[1][2]Carbon-fibre reinforced thermoplastic polyurethane at the hard end of the range[3]
Densityg/cm³1.31 (Bambu Lab, ISO 1183) to 1.38 (Fiberlogy PLA Mineral, method not stated) — above plain PLA from the filler[2][1]1.22 (Extrudr FLEX HARD CF, ISO 2781)[3]
Typical priceUSD/kgMainstream 1 kg spools cluster near 21[4][5][6]107 for the only retail listing found (Extrudr 0.5 kg coil, incl. VAT)[7]
Price range across brandsUSD/kg11–32 across brands; budget house brands 11–19, Fiberlogy PLA Mineral 32[8][5][9]One listing only: EUR 49.56 incl. VAT per 0.5 kg coil, direct from Extrudr; no reseller or second brand found[7]
Market availability1–5Stocked by most mainstream brands[8][6][4]Niche, a handful of specialist brands — Extrudr's FLEX HARD CF is the only carbon-filled flexible with a published datasheet found here[3]
Spool sizes & diameters1.75 mm; 1 kg spools plus spool-less refills[4][10]1.75 mm; 0.5 and 2 kg coils[7]
Typical applicationsDisplay models and visible parts where a matte, non-reflective finish matters[2]Stiffened flexible parts — damping mounts and semi-rigid brackets[3]
Diameter tolerance± mm±0.03 (Bambu Lab)[11]Not documented
Printing Parameters
Nozzle temperature°C190–230 (Bambu Lab); 190–210 (Fiberlogy PLA Mineral)[2][1]230–260 (Extrudr FLEX HARD CF)[3]
Bed temperature°C35–45 (Bambu Lab); 60 (Fiberlogy)[2][1]50–90 (Extrudr FLEX HARD CF)[3]
Enclosure / chamber requirement1–5Open frame is fine[2][1]Open frame is fine[3]
Part cooling fanFan on; Fiberlogy specifies 75–100 %[2][1]Not documented
Bed surface & adhesion aidCool plate, high-temperature plate or textured PEI with glue (Bambu Lab); smooth PEI, textured PEI or glass (Fiberlogy)[2][1]PEI sheet or painter's tape; Polymaker warns TPU can over-stick and advises a glue stick as a release agent[12][13]
Maximum volumetric flow (mm³/s; see test conditions)mm³/sNot documented1.6–8 at the 20–100 mm/s Extrudr specifies on a 0.4 mm nozzle at 0.2 mm layer[3]
Warping tendency1–5None[2]Not documented
Bed-adhesion difficulty1–5Sticks to anything[14]Not documented
Overall printing difficulty1–5Beginner — prints on any machine out of the box[2][1]Advanced — enclosure, hardware upgrades, tuning; hardened nozzle needed[3]
Hardware Wear & Reliability
Nozzle hardness required1–4Brass fine indefinitely[15][2][1]Hardened steel required — Extrudr marks FLEX HARD CF as needing a hardened nozzle where its unfilled FLEX grades do not[3]
Abrasiveness1–5Slightly abrasive — mineral filler pushes density from 1.24 to 1.31–1.38[1][2][16]Highly abrasive — standard CF composite[3]
Nozzle clog risk1–5Very low[15]High — jams from moisture, heat creep or particles; a flexible base plus chopped carbon fibre, which Prusa lists as a higher nozzle-clogging risk, and Extrudr requires a hardened nozzle[17][3][12]
Heat-creep / jam sensitivity1–5Moderate — good heatbreak cooling needed; PLA softens below 60 °C[18]Not documented
Hotend requirementNo special hot-end required[14]No special hot-end required, but a direct-drive extruder is (Simplify3D)[12]
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Moderate — 0.40 % saturated at 25 °C / 55 % RH[2]Moderate[19]
Equilibrium moisture content at ~50 % RH%0.40 saturated at 25 °C / 55 % RH (Bambu Lab)[2]Not documented
Drying temperature & time50 °C for 8 h in a forced-air dryer, or 60–70 °C for 12 h on an X1 heatbed; Fiberlogy specifies 50 °C for 6 h[2][1][20]60 °C for 6 h (Extrudr FLEX HARD CF)[3]
Symptoms when wetBubbling and popping at the nozzle, stringing, rough surface and weak layers[19]Bubbling and popping at the nozzle, stringing and a rough surface[19]
Effect of moisture on strengthPolymaker rates PLA low-sensitivity — the loss shows as poor layer adhesion and brittle layers rather than a published strength figure[19]Polymaker groups TPU with the highly hygroscopic materials; no dry-versus-conditioned figures are published[19]
Storage requirementSealed with desiccant below 20 % RH; shelf life at ambient is long[16][14]Sealed with desiccant; often kept in a dryer during the print[19]
Mechanical Properties
Tensile strength (XY)MPa30 (printed XY, ISO 527, Bambu Lab); 35.1 on My Tech Fun bars for PolyTerra PLA[2][21]Not documented
Young's modulusMPa1960 (Bambu Lab, printed XY, ISO 527); Fiberlogy PLA Mineral quotes 3500 (ISO 527, specimen type not stated)[2][1]35 (Extrudr FLEX HARD CF, ISO 527-2/5A/500)[3]
Elongation at break%14.8 (printed XY, ISO 527)[2]380 ultimate elongation (Extrudr FLEX HARD CF, ISO 527-2/5A/500), against 490 for the unfilled FLEX HARD[3]
Flexural strengthMPa53 (printed XY, ISO 178) — 30 % below PLA Basic at 76[2][16]Not documented
Flexural modulusMPa2360 (printed XY, ISO 178)[2]Not documented
Charpy impact, notchedkJ/m²6.3 (printed XY, ISO 179, notched); unnotched 19.2[2]Not documented
Other impact dataIzod 6.1 kJ/m² on My Tech Fun printed bars for PolyTerra PLA[21]Not documented
Layer adhesion / Z tensileMPa22 (printed Z, ISO 527); flexural Z falls to 29 against 53 in XY; 12.9 on My Tech Fun layer-adhesion bars[2][21]Not documented
Brittleness1–5Brittle — snaps with little warning[2]Very ductile — bends far before failing[3]
Hardness (scale-specific)Shore A / Shore D / RockwellNot documented70 Shore D (Extrudr FLEX HARD CF, ISO 868), against 58 Shore D for the unfilled FLEX HARD[3]
Creep resistance / sustained load1–5Poor — 12 mm bar sagged to 18.7 mm over 5 days at 1.25 kg[21]Below average — no CF-grade creep test; the grade is 70 Shore D where a 95A TPU bar crept from 74.5 to 82.7 mm over 5 days at 1.25 kg[3][22]
Fatigue / repeated-flex resistance1–5Poor — no grade-specific S-N curve; plain printed PLA ran 38 000–49 000 cycles at 30 % of tensile strength (R = 0.2)[23][18]Good — 380 % ultimate elongation and a damping application set (Extrudr cites longboard wheels), below the unfilled grades[3]
Elasticity / flexibility1–5Rigid[2]Semi-flexible[3]
Z strength as % of XY%73 by tensile, 55 by flexural (printed, Bambu Lab)[2]Not documented
Wear resistance & frictionNot documentedAbrasion 26 mm³ (Extrudr FLEX HARD CF, ISO 4649-A) — the same as the unfilled FLEX HARD[3]
Thermal Properties
HDT at 0.45 MPa°C58 (Bambu Lab) and 48 (Fiberlogy PLA Mineral), ISO 75 at 0.45 MPa[2][1]Not documented
HDT at 1.8 MPa°C52 (ISO 75, 1.8 MPa)[2]Not documented
Glass transition (Tg)°C61 (DSC)[2]-24 (Extrudr FLEX HARD CF)[3]
Melting point / Vicat°C163 peak melt (DSC); Vicat 63 °C[2]Vicat A 140 (Extrudr FLEX HARD CF, ISO 306)[3]
Continuous service temperature°C54 — loaded bars begin to move at this temperature[21]Not documented
Annealing response50–60 °C for 6–12 h; some prints deform or warp, and a forced-air oven is required[2]Not documented
Flammability / UL 94Flammable; no UL 94 rating published by the major brands[16][24]Not documented
Environment & Chemical
UV resistance1–5Degrades within weeks outdoors[18][25]Good — years with some colour shift; Polymaker lists UV exposure among the conditions TPU withstands[13]
Chemical resistanceGood against weak acids, oils and grease; poor against strong acids and alkalis; dissolved by chloroform, THF and hot benzene[24][18]Withstands industrial solvents and UV exposure (Polymaker)[13]
Water / humidity resistance in service1–5Good — insoluble in water[16]Not documented
Food contactBase resin is food-contact grade, but printed layer grooves harbour bacteria; Prusa advises against food use[18]Not food safe without specific certification (Polymaker)[13]
Biodegradability / compostabilityIndustrially compostable only — needs sustained 55 °C; not home compostable[26][18]Not biodegradable[13]
RecyclabilityMechanically recyclable; not accepted in household plastic collection[26]Not accepted in household plastic collection[13]
Health & Safety
Fume toxicity1–5Low hazard — minimal VOC and particle emission[27]Low hazard — minimal VOC and particle emission; TPU was not among the nine filaments in the chamber study[27]
Ventilation / filtration requirement1–5None needed in a normal room[27]Open a window / occasional ventilation[27]
Dust & fibre handling hazardNot documentedCarbon fibre is bound in the matrix; sanding dust should not be inhaled[3]
Post-Processing
Sanding & machiningWet sanding — dry sanding heats the surface by friction and smears it[25][18]Difficult to sand or smooth; Polymaker limits post-processing to trimming or tumbling[13]
Gluing & solvent weldingCyanoacrylate for most joints; some grades partially dissolve and bond with acetone[18][28]Cyanoacrylate bonds TPU; no common solvent welds it[13]
Vapour / chemical smoothingNo practical vapour smoothing — only chloroform, hot benzene or THF, which are laboratory-only[18]No practical vapour smoothing[13]
Support material pairingSupport for PLA (Bambu Lab)[2]Polymaker warns TPU supports are often very difficult to remove[13]
Dimensional accuracy & detailMatte surface hides layer lines; 55° overhangs and 30 mm bridges as for plain PLA[2]Tear strength 165 kN/m (Extrudr FLEX HARD CF, ISO 34-1B)[3]
Solvents & Solubility
Soluble inChloroform: 10 % w/v in 2–4 h at 23 °C, every grade and morphology; THF and DMF only at 65 °C. Laboratory reagents.[29]DMF, DMSO, NMP and THF dissolve the TPU matrix and leave the fibre; ketones are partial solvents. Laboratory reagents.[30]
Softened or crazed byAcetone, ethyl acetate and toluene plasticise it but dissolve <1 % even at 65 °C; submersion in acetone crazes and destroys parts.[29][31]Toluene and benzene swell it up to +50 % by weight at 23 °C; esters swell it severely; ethanol and IPA soften it.[30]
Solvent welding & smoothing agentChloroform vapour smooths and welds PLA at the cost of tensile strength; acetone does not smooth it at all.[32][31]None practical — the true solvents (DMF, THF, NMP) are laboratory reagents and leave the joint swollen and weak.[30]

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. PLA Mineral — product and technical data Fiberlogy · 2026-08 · tds
  2. Bambu Filament Technical Data Sheet V3.0 — PLA Matte Bambu Lab · 2026-08 · tds
  3. Extrudr Product Catalogue (DURAPRO PA12 data block) Extrudr · 2025-03 · tds
  4. Polymaker Panchroma Matte PLA — product listing 3DJake International · 2026-08 · vendor
  5. Overture Matte PLA 1.75mm Overture3D · 2026-08 · vendor
  6. Matte PLA filament collection Anycubic Official Store · 2026-08 · vendor
  7. Extrudr TPU FLEX Hard CF — product page (1.75 mm, 0.5 and 2 kg coils, price) Extrudr (FD3D GmbH) · 2026-08 · vendor
  8. Matte PLA filament collection Sunlu Official Store · 2026-08 · vendor
  9. Fiberlogy PLA Mineral — product listing 3DJake International · 2026-08 · vendor
  10. Extrudr PLA NX2 Matt — product listing 3DJake International · 2026-08 · vendor
  11. PLA Basic — product page Bambu Lab US Store · 2026-08 · vendor
  12. Flexible (TPE/TPU) — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  13. TPU — material basics Polymaker Wiki · 2026-08 · doc
  14. PLA — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  15. Filament Material Guide Prusa Knowledge Base · 2026-08 · doc
  16. Bambu Filament Technical Data Sheet V3.0 — PLA Basic Bambu Lab · 2026-08 · tds
  17. Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
  18. PLA — material guide Prusa Knowledge Base · 2026-08 · doc
  19. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  20. Filament Drying Recommendations Bambu Lab Wiki · 2026-08 · doc
  21. PolyTerra PLA vs PLA+ — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  22. BambuLab TPU 95A HF vs Qidi TPU 95A HF — results spreadsheet My Tech Fun (Igor Gaspar) · 2024-02 · test
  23. Mechanical Properties of Additively Manufactured Polymeric Materials — PLA and PETG — For Biomechanical Applications Polymers 16(13):1868 · 2024-06 · paper
  24. PolyLite PLA Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
  25. Prusament PLA Technical Data Sheet v1.0 Prusa Polymers · 2018-09 · tds
  26. Filamentive PLA (recycled) — product page Filamentive · 2026-08 · vendor
  27. 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
  28. Prusament rPLA Corn Pigment 1kg — product page Prusa Research · 2026-08 · vendor
  29. Solubility Study of Ingeo Biopolymer Grades in Common Organic Solvents (NWPD003) NatureWorks · 2019-10 · tds
  30. Elastollan — Chemical properties: swelling and chemical resistance BASF · 2026-08 · tds
  31. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc
  32. 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