3D Printing Info

Filament comparison

PETG-CF vs PLA Matte

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

Carbon-fibre PETG (PETG-CF) guideMatte PLA guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PETG-CF comparisonsMore PLA Matte comparisons
PETG-CF vs PLA Matte — documented properties and sources
PropertyCarbon-fibre PETG (PETG-CF)PETGMatte PLAPLA
Market snapshot
Listing priceUSD/kg; dated snapshots$29.99/kg median; $16.00–$74.22/kg across 11 dated product listings$19.09/kg median; $10.99–$32.16/kg across 10 dated product listings
Identity & Market
Base polymer / chemistryPETG reinforced with chopped carbon fibre[1][2]PLA compounded with a mineral filler — Fiberlogy names chalk — that scatters light into a diffuse finish[3][4]
Densityg/cm³1.25 (Bambu Lab) to 1.34 (3DXTech), ISO 1183; Prusament 1.27[1][5][2]1.31 (Bambu Lab, ISO 1183) to 1.38 (Fiberlogy PLA Mineral, method not stated) — above plain PLA from the filler[4][3]
Typical priceUSD/kg1 kg-equivalent spools span 16–74; the middle of the market is about 29[1][6][7][8][9][10][11][12]Mainstream 1 kg spools cluster near 21[13][14][15]
Price range across brandsUSD/kg16–74 across brands; ELEGOO 16 in a 5 kg pack, Reli3D 17, SUNLU 20, IEMAI 22, Siraya Tech 25, Bambu Lab 32, Sakata 3D 53, 3DXTech 67, Prusament 70, Filament PM 74 on 0.5 kg spools[16][1][17][6][7][8][9][10][11][12]11–32 across brands; budget house brands 11–19, Fiberlogy PLA Mineral 32[18][14][19]
Market availability1–5Stocked by most mainstream brands[1][17][6][16]Stocked by most mainstream brands[18][15][13]
Spool sizes & diameters1.75 and 2.85 mm; 0.75 and 1 kg spools[17][1]1.75 mm; 1 kg spools plus spool-less refills[13][20]
Typical applicationsStiff functional parts and fixtures where PETG's toughness is traded for rigidity and a matte finish[1][2]Display models and visible parts where a matte, non-reflective finish matters[4]
Diameter tolerance± mm±0.02 (Prusament)[2]±0.03 (Bambu Lab)[21]
Printing Parameters
Nozzle temperature°C240–270 (Bambu Lab); 265 ± 10 (Prusament)[1][2]190–230 (Bambu Lab); 190–210 (Fiberlogy PLA Mineral)[4][3]
Bed temperature°C65–75 (Bambu Lab); 90 ± 10 (Prusament)[1][2]35–45 (Bambu Lab); 60 (Fiberlogy)[4][3]
Enclosure / chamber requirement1–5Open frame fine; draught shield helps — Bambu Lab specifies a 35–50 °C chamber[1]Open frame is fine[4][3]
Recommended chamber temperature°C35–50 (Bambu Lab)[1]Not documented
Part cooling fan0–60 % (Bambu Lab); 50 % (Prusament)[1][2]Fan on; Fiberlogy specifies 75–100 %[4][3]
Bed surface & adhesion aidTextured PEI or engineering plate with glue (Bambu Lab)[1]Cool plate, high-temperature plate or textured PEI with glue (Bambu Lab); smooth PEI, textured PEI or glass (Fiberlogy)[4][3]
Maximum volumetric flow (mm³/s; see test conditions)mm³/s11.5 on My Tech Fun's Bambu Lab PETG-CF profile[22]Not documented
Warping tendency1–5Not documentedNone[4]
Bed-adhesion difficulty1–5Needs the right surface or a thin adhesive[1]Sticks to anything[23]
Stringing / oozing tendency1–5Slight — the fibre reduces stringing against unfilled PETG[1][24]Not documented
Overall printing difficulty1–5Intermediate — dry filament and a tuned profile; hardened nozzle mandatory[1]Beginner — prints on any machine out of the box[4][3]
Hardware Wear & Reliability
Nozzle hardness required1–4Hardened steel required[1]Brass fine indefinitely[25][4][3]
Abrasiveness1–5Highly abrasive — standard CF composite[1]Slightly abrasive — mineral filler pushes density from 1.24 to 1.31–1.38[3][4][26]
Nozzle clog risk1–5Moderate — needs dry filament and a clean nozzle; 3DXTech specifies a hardened 0.4 mm minimum nozzle and 0.25 mm layers or higher, and Prusa lists composites as a higher clogging risk[27][28]Very low[25]
Heat-creep / jam sensitivity1–5Slightly sensitive[24]Moderate — good heatbreak cooling needed; PLA softens below 60 °C[29]
Hotend requirementHardened steel nozzle; no high-temperature hot-end needed[1][24]No special hot-end required[23]
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Low — 0.30 % saturated at 25 °C / 55 % RH (Bambu Lab)[1]Moderate — 0.40 % saturated at 25 °C / 55 % RH[4]
Equilibrium moisture content at ~50 % RH%0.30 saturated at 25 °C / 55 % RH (Bambu Lab); Prusa measures 0.10 after 7 days at 22 % RH[1][2]0.40 saturated at 25 °C / 55 % RH (Bambu Lab)[4]
Drying temperature & time65 °C for 8 h (Bambu Lab)[1]50 °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[4][3][30]
Symptoms when wetBubbling and popping at the nozzle, stringing and a rough surface[31]Bubbling and popping at the nozzle, stringing, rough surface and weak layers[31]
Effect of moisture on strengthNo dry-versus-conditioned figures published; Bambu Lab states PETG-CF must be properly dried before printing and stored dry after use[1][31]Polymaker rates PLA low-sensitivity — the loss shows as poor layer adhesion and brittle layers rather than a published strength figure[31]
Storage requirementSealed with desiccant; Bambu Lab says store dry after use[1][31]Sealed with desiccant below 20 % RH; shelf life at ambient is long[26][23]
Mechanical Properties
Tensile strength (XY)MPa35 ± 5 (Bambu Lab) and 47 ± 2 at yield (Prusament) printed XY, ISO 527; 56 at break for 3DXTech[1][2][5]30 (printed XY, ISO 527, Bambu Lab); 35.1 on My Tech Fun bars for PolyTerra PLA[4][32]
Young's modulusMPa2460 ± 230 (Bambu Lab) and 1700 (Prusament) printed XY, ISO 527[1][2]1960 (Bambu Lab, printed XY, ISO 527); Fiberlogy PLA Mineral quotes 3500 (ISO 527, specimen type not stated)[4][3]
Elongation at break%4.3 at yield (Prusament, printed XY, ISO 527); 3 at break for 3DXTech[2][5]14.8 (printed XY, ISO 527)[4]
Flexural strengthMPa68 ± 3 printed horizontal, ISO 178 (Prusament)[2]53 (printed XY, ISO 178) — 30 % below PLA Basic at 76[4][26]
Flexural modulusMPa2300 printed horizontal, 3100 printed vertical, ISO 178 (Prusament)[2]2360 (printed XY, ISO 178)[4]
Charpy impact, notchedkJ/m²Not documented6.3 (printed XY, ISO 179, notched); unnotched 19.2[4]
Other impact dataCharpy unnotched 29 ± 6 printed horizontal and 43 ± 8 printed vertical (Prusament, ISO 179-1); Izod 4.91 kJ/m² on My Tech Fun bars[2][22]Izod 6.1 kJ/m² on My Tech Fun printed bars for PolyTerra PLA[32]
Layer adhesion / Z tensileMPa29 ± 4 printed Z (Bambu Lab, ISO 527); 18 ± 3 by Prusa's interlayer adhesion test; 10.7 on My Tech Fun bars[1][2][22]22 (printed Z, ISO 527); flexural Z falls to 29 against 53 in XY; 12.9 on My Tech Fun layer-adhesion bars[4][32]
Brittleness1–5Brittle — snaps with little warning[5]Brittle — snaps with little warning[4]
Hardness (scale-specific)Shore A / Shore D / Rockwell77 Shore D (Prusa Polymers method)[2]Not documented
Creep resistance / sustained load1–5Below average — a 12 mm bar sagged to 16.4 mm over 5 days at 1.25 kg, less than plain PETG's 19.4[22]Poor — 12 mm bar sagged to 18.7 mm over 5 days at 1.25 kg[32]
Fatigue / repeated-flex resistance1–5Moderate — no CF-grade S-N curve; unfilled printed PETG ran 79 000–193 000 cycles at 30 % of tensile strength[33]Poor — no grade-specific S-N curve; plain printed PLA ran 38 000–49 000 cycles at 30 % of tensile strength (R = 0.2)[33][29]
Elasticity / flexibility1–5Rigid[1]Rigid[4]
Z strength as % of XY%83 (Bambu Lab, printed Z against XY tensile)[1]73 by tensile, 55 by flexural (printed, Bambu Lab)[4]
Thermal Properties
HDT at 0.45 MPa°C74 (Bambu Lab) and 96 (Prusament), ISO 75 at 0.45 MPa[1][2]58 (Bambu Lab) and 48 (Fiberlogy PLA Mineral), ISO 75 at 0.45 MPa[4][3]
HDT at 1.8 MPa°C68 (Bambu Lab) and 80 (Prusament), ISO 75 at 1.8 MPa[1][2]52 (ISO 75, 1.8 MPa)[4]
Glass transition (Tg)°C68 (Bambu Lab) and 80 (3DXTech), DSC[1][5]61 (DSC)[4]
Melting point / Vicat°C225 melting (Bambu Lab, DSC) — the carbon fibre lets the PET fraction crystallise[1]163 peak melt (DSC); Vicat 63 °C[4]
Continuous service temperature°C77 — loaded bars begin to move at this temperature, against 61 for Bambu Lab PETG Basic[22]54 — loaded bars begin to move at this temperature[32]
Annealing responseNot documented50–60 °C for 6–12 h; some prints deform or warp, and a forced-air oven is required[4]
Flammability / UL 94Flammable; no UL 94 rating published[1]Flammable; no UL 94 rating published by the major brands[26][34]
Environment & Chemical
UV resistance1–5Moderate — a season or two; the carbon fibre does not add UV stabilisation[35]Degrades within weeks outdoors[29][36]
Chemical resistanceWithstands acids, alkalis, oils and UV exposure, as for unfilled PETG[35]Good against weak acids, oils and grease; poor against strong acids and alkalis; dissolved by chloroform, THF and hot benzene[34][29]
Water / humidity resistance in service1–5Not documentedGood — insoluble in water[26]
Food contactNot certified for food contact[35]Base resin is food-contact grade, but printed layer grooves harbour bacteria; Prusa advises against food use[29]
Biodegradability / compostabilityNot biodegradable[35]Industrially compostable only — needs sustained 55 °C; not home compostable[37][29]
RecyclabilityFibre-filled PETG is not accepted in household plastic collection[35]Mechanically recyclable; not accepted in household plastic collection[37]
Electrical & ESD propertiesSurface resistance above 10⁹ ohm/sq — carbon fibre at this loading is not static-dissipative (3DXTech)[5]Not documented
Health & Safety
Fume toxicity1–5Moderate — measurable VOCs and UFPs, ventilation advised[38]Low hazard — minimal VOC and particle emission[38]
Ventilation / filtration requirement1–5Open a window / occasional ventilation[38]None needed in a normal room[38]
Dust & fibre handling hazardCarbon fibre is bound in the matrix; sanding dust should not be inhaled[5]Not documented
Post-Processing
Sanding & machiningSands to a matte finish more readily than unfilled PETG[24]Wet sanding — dry sanding heats the surface by friction and smears it[36][29]
Gluing & solvent weldingCyanoacrylate; no common solvent welds it[24]Cyanoacrylate for most joints; some grades partially dissolve and bond with acetone[29][39]
Vapour / chemical smoothingNo practical vapour smoothing[24]No practical vapour smoothing — only chloroform, hot benzene or THF, which are laboratory-only[29]
Support material pairingSupport for PLA or its own material (Bambu Lab)[1]Support for PLA (Bambu Lab)[4]
Dimensional accuracy & detailMatte finish hides layer lines; stringing is reduced against unfilled PETG[1]Matte surface hides layer lines; 55° overhangs and 30 mm bridges as for plain PLA[4]
Solvents & Solubility
Soluble inNo common workshop solvent; dichloromethane — a carcinogen — dissolves the matrix surface, 1,2-dichloroethane destroys it in a week.[40][41]Chloroform: 10 % w/v in 2–4 h at 23 °C, every grade and morphology; THF and DMF only at 65 °C. Laboratory reagents.[42]
Softened or crazed byAcetone (+16 % weight over 1 year at 23 °C), ethyl acetate, toluene and DMF swell and soften it; methanol crazes it.[40]Acetone, ethyl acetate and toluene plasticise it but dissolve <1 % even at 65 °C; submersion in acetone crazes and destroys parts.[42][41]
Solvent welding & smoothing agentDichloromethane reaches only the resin, so the fibre is left standing proud of the surface. Controlled carcinogen.[41]Chloroform vapour smooths and welds PLA at the cost of tensile strength; acetone does not smooth it at all.[43][41]

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. Bambu Filament Technical Data Sheet — PETG-CF Bambu Lab · 2026-08 · tds
  2. Prusament PETG Carbon Fiber Technical Datasheet Prusa Polymers · 2026-08 · tds
  3. PLA Mineral — product and technical data Fiberlogy · 2026-08 · tds
  4. Bambu Filament Technical Data Sheet V3.0 — PLA Matte Bambu Lab · 2026-08 · tds
  5. CarbonX Carbon Fiber PETG Technical Data Sheet 3DXTech · 2026-08 · tds
  6. Printed Solid product catalogue Printed Solid · 2026-08 · vendor
  7. SUNLU PETG-CF (PETG Carbon Fiber) 3D Printer Filament 1 kg SUNLU · 2026-08 · vendor
  8. Fibreheart PETG-CF Pro Filament product page Siraya Tech · 2026-08 · vendor
  9. IEMAI CF-PETG 3D Printing Filament product page IEMAI 3D · 2026-08 · vendor
  10. Reli3D Carbon Fiber PETG Filament 1.75 mm, 1 kg Reli3D (Amazon US) · 2026-08 · vendor
  11. PET-G CF15 Sakata 3D Filaments · 2026-08 · vendor
  12. Filament PM CFJet technical data sheet (TDS CFJet ENG.pdf) Filament PM (Plasty Mladec) · 2026-08 · tds
  13. Polymaker Panchroma Matte PLA — product listing 3DJake International · 2026-08 · vendor
  14. Overture Matte PLA 1.75mm Overture3D · 2026-08 · vendor
  15. Matte PLA filament collection Anycubic Official Store · 2026-08 · vendor
  16. ELEGOO product catalogue ELEGOO · 2026-08 · vendor
  17. 3DXTech product catalogue 3DXTech · 2026-08 · vendor
  18. Matte PLA filament collection Sunlu Official Store · 2026-08 · vendor
  19. Fiberlogy PLA Mineral — product listing 3DJake International · 2026-08 · vendor
  20. Extrudr PLA NX2 Matt — product listing 3DJake International · 2026-08 · vendor
  21. PLA Basic — product page Bambu Lab US Store · 2026-08 · vendor
  22. BambuLab PETG Basic vs Translucent vs PETG-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  23. PLA — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  24. PET and PETG — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  25. Filament Material Guide Prusa Knowledge Base · 2026-08 · doc
  26. Bambu Filament Technical Data Sheet V3.0 — PLA Basic Bambu Lab · 2026-08 · tds
  27. CARBONX PETG+CF — product page (print recommendations) 3DXTech · 2026-08 · doc
  28. Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
  29. PLA — material guide Prusa Knowledge Base · 2026-08 · doc
  30. Filament Drying Recommendations Bambu Lab Wiki · 2026-08 · doc
  31. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  32. PolyTerra PLA vs PLA+ — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  33. Mechanical Properties of Additively Manufactured Polymeric Materials — PLA and PETG — For Biomechanical Applications Polymers 16(13):1868 · 2024-06 · paper
  34. PolyLite PLA Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
  35. PETG — material basics Polymaker Wiki · 2026-08 · doc
  36. Prusament PLA Technical Data Sheet v1.0 Prusa Polymers · 2018-09 · tds
  37. Filamentive PLA (recycled) — product page Filamentive · 2026-08 · vendor
  38. 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
  39. Prusament rPLA Corn Pigment 1kg — product page Prusa Research · 2026-08 · vendor
  40. Eastman Spectar copolyester — Chemical resistance (unstressed bars, 1 year at 23 °C) Eastman Chemical Company · 2026-08 · tds
  41. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc
  42. Solubility Study of Ingeo Biopolymer Grades in Common Organic Solvents (NWPD003) NatureWorks · 2019-10 · tds
  43. 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