3D Printing Info

Filament comparison

PC-ABS vs PLA-PHA

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

PC/ABS blend guidePLA/PHA blend guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PC-ABS comparisonsMore PLA-PHA comparisons
PC-ABS vs PLA-PHA — documented properties and sources
PropertyPC/ABS blendPCPLA/PHA blendPLA
Market snapshot
Listing priceUSD/kg; dated snapshots$45.99/kg median; $34.99–$84.00/kg across 5 dated product listings$76.40/kg median; $76.40–$76.40/kg across 1 dated product listings
Identity & Market
Base polymer / chemistryPolycarbonate/ABS alloy — PC stiffness and heat resistance with ABS processability[1][2]PLA blended with polyhydroxyalkanoate, a bacterially fermented bio-polyester[3]
Densityg/cm³1.10 (Polymaker) and 1.24 (3DXTech FR grade), ISO 1183; Stratasys specific gravity 1.10 (ASTM D792)[1][2][4]1.2 (ISO 1183)[3]
Typical priceUSD/kg1 kg spools cluster near 50[5][6]Not documented
Price range across brandsUSD/kg35–84 across brands; Reli3D 35, SUNLU 46, Polymaker 50, 3DXMAX 84[5][6][7][8]Not documented
Market availability1–5Available from several mainstream brands[5][6]Niche, a handful of specialist brands[3][9]
Spool sizes & diameters1.75 and 2.85 mm; 0.5 and 1 kg spools[5][6]1.75 and 2.85 mm; 750 g and 2200 g spools[3]
Typical applicationsAutomotive interior and electronics housings that need PC heat resistance without PC's warping[1]General-purpose printing where PLA's brittleness is the limiting factor[3]
Printing Parameters
Nozzle temperature°C250–270 (Polymaker)[1]195–220 (colorFabb)[3]
Bed temperature°C90–105 (Polymaker)[1]50–60 (colorFabb)[3]
Enclosure / chamber requirement1–5Enclosure required (passive) — Polymaker specifies a 90–100 °C chamber[1]Open frame is fine[3]
Recommended chamber temperature°C90–100 (Polymaker)[1]Not documented
Part cooling fanOff (Polymaker)[1]0–100 %; colorFabb states the blend runs on both heated and unheated beds[3][10]
Bed surface & adhesion aidPEI with a glue stick or a commercial adhesive[11]Not documented
Maximum volumetric flow (mm³/s; see test conditions)mm³/s20 at Polymaker's 250 mm/s cap on a 0.4 mm nozzle at 0.2 mm layer[1][12]3.2–8 at colorFabb's 40–100 mm/s, on a 0.4 mm nozzle at 0.2 mm layer[10][12]
Warping tendency1–5High — enclosure needed for reliable large parts[1][13]Not documented
Bed-adhesion difficulty1–5Needs a specific surface plus adhesive[11][14]Not documented
Stringing / oozing tendency1–5Moderate — retraction tuning needed; Polymaker flags stringing as a common PC problem[14]Not documented
Overall printing difficulty1–5Advanced — enclosure, hardware upgrades, tuning[1][13]Beginner — prints on any machine out of the box[3]
Hardware Wear & Reliability
Nozzle hardness required1–4Brass fine indefinitely[13]Brass fine indefinitely[3]
Abrasiveness1–5Non-abrasive[1]Non-abrasive[3]
Nozzle clog risk1–5Moderate — needs dry filament and a clean nozzle; 3DXTech lists no special nozzle concerns but a 120 °C pre-dry of 4 h or more[15]Very low — unfilled PLA blend; Prusa lists no drybox and no hardened nozzle for PLA[16]
Heat-creep / jam sensitivity1–5Slightly sensitive[11]Not documented
Hotend requirementAll-metal hot end required (Simplify3D)[11]Not documented
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Low (0.1–0.3 %) — the PC matrix takes up 0.15–0.25 % and 3DXTech specifies a 120 °C, 4 h or more pre-dry[17][18][15]Moderate — the PLA matrix takes up 0.40–0.51 % saturated; colorFabb publishes no figure for the blend[19][20]
Drying temperature & time75 °C for 6 h (Polymaker)[1]Not documented
Symptoms when wetBubbling and popping at the nozzle, stringing and a rough surface[21]Not documented
Effect of moisture on strengthNo dry-versus-conditioned figures are published. Polymaker calls PC highly hygroscopic and requires a 70–80 °C dry for 6–8 h; run wet, the loss shows as surface defects and poor layer adhesion[14][21]Polymaker rates PLA low-sensitivity and publishes no dry-versus-conditioned figures for this grade; absorbed water flashes to steam and shows as bubbling and poor layer adhesion[21]
Storage requirementAirtight containers with desiccant to prevent reabsorption[14]Not documented
Mechanical Properties
Tensile strength (XY)MPa39.9 ± 1.0 printed XY, ISO 527 (Polymaker); 3DXTech quotes 60 at break for its FR PC/ABS[1][2]62–64 (ISO 527-1A, colorFabb; two grades quoted)[3]
Young's modulusMPa1835 ± 65 printed XY, ISO 527 (Polymaker); 3DXTech quotes 2250[1][2]2960–3070 (ISO 527-1A, colorFabb)[3]
Elongation at break%4.2 ± 0.3 printed XY, ISO 527 (Polymaker); 3DXTech quotes 10 at break[1][2]4 and 11 (ISO 527-1A, colorFabb; two grades quoted)[3]
Flexural strengthMPa66.3 ± 0.9 printed XY, ISO 178 (Polymaker); 3DXTech quotes 85[1][2]Not documented
Flexural modulusMPa2081 ± 106 printed XY, ISO 178 (Polymaker); 3DXTech quotes 2300[1][2]2500–3300 flexural modulus (ISO 178, colorFabb)[3]
Charpy impact, notchedkJ/m²25.8 ± 1.3 printed XY, ISO 179, notched (Polymaker) — above both unfilled PC and ABS[1]2.8–3.7 (ISO 179, notched, colorFabb)[3]
Other impact dataNotched Charpy still 13 ± 2 kJ/m² at −30 °C printed XY (Polymaker, ISO 179-1/1eA), against 1.5 in Z. Stratasys prints Izod notched at 241 J/m XZ against 34.0 J/m ZX, and unnotched 655 against 101 J/m (ASTM D256, F900 T16).[1][4]Not documented
Layer adhesion / Z tensileMPa25.9-30.2 at break printed ZX (Stratasys, ASTM D638 on the F900 and Fortus 450mc); 22.9 +/- 1.2 printed Z, ISO 527 (Polymaker)[1][4]Not documented
Brittleness1–5Tough — absorbs impact, yields before breaking[1]Moderate — colorFabb positions the blend as tougher and less brittle than its generic PLA grades[3]
Hardness (scale-specific)Shore A / Shore D / RockwellRockwell 70 (118) — the source does not name the scales and Shore D 79 on extruded unfilled PC stock (ASTM D785, D2240); no figure is published for a PC/ABS filament[22]Not documented
Creep resistance / sustained load1–5Good. Room-temperature tensile creep of moulded PC/ABS was still running unbroken at 30 MPa when the experiment was stopped for time; specimens failed within the test window at 39-47 MPa (ASTM D638)[23]Poor — no PLA/PHA creep test; plain printed PLA sagged from 12 to 16.2–21.8 mm over 5 days at 1.25 kg[24][25][26]
Fatigue / repeated-flex resistance1–5Not documentedBelow average — no S-N curve for the blend; colorFabb positions it as tougher and less brittle than its generic PLA, which ran 38 000–49 000 cycles at 30 % of tensile strength[27][3]
Elasticity / flexibility1–5Rigid[1]Rigid[3]
Z strength as % of XY%75-86 (Stratasys ZX against XZ tensile at break, ASTM D638) against 57 (Polymaker, printed Z against XY tensile)[1][4]Not documented
Thermal Properties
HDT at 0.45 MPa°C112 (ISO 75 at 0.45 MPa, Polymaker); Stratasys prints 117.9 in XY and 126.1 in XZ (ASTM D648 Method B at 66 psi), against 125.0 moulded[1][4]Not documented
HDT at 1.8 MPa°C106 (ISO 75 at 1.8 MPa, Polymaker); Stratasys prints 107.5 in XY and 112.0 in XZ (ASTM D648 Method B at 264 psi), against 102.9 moulded[1][4]Not documented
Glass transition (Tg)°C109 (Polymaker) and 137 (3DXTech FR grade), DSC; Stratasys measures 105.3 (ASTM D7426 inflection point)[1][2][4]Not documented
Melting point / Vicat°CAmorphous — no melting point; Vicat 135 (Polymaker, ISO 306)[1]Above 155 melting (ISO 3146-C)[3]
Continuous service temperature°C113 — Prusa publishes this as the temperature resistance of Prusament PC Blend[18]Not documented
Annealing response90 °C for 2 h (Polymaker)[1]Not documented
Thermal expansion (CTE)µm/m·K59.9 over -50 to 35 °C and 73.0 over -50 to 95 °C (printed XY, ASTM E831)[4]Not documented
Environment & Chemical
UV resistance1–5Degrades within weeks outdoors[14]Degrades within weeks outdoors[28]
Chemical resistanceWithstands oils, solvents and fuels; Polymaker rates it good against weak acids[14]Not documented
Food contactBisphenol-A polycarbonate is not offered as food-contact filament[14]Not documented
Biodegradability / compostabilityNot biodegradable[14]colorFabb states the PHA component is 100 % biodegradable[3]
RecyclabilityMechanically recyclable but not accepted in household plastic collection[14]Not documented
Health & Safety
Fume toxicity1–5Moderate — measurable VOCs and UFPs, ventilation advised[29]Low hazard — minimal VOC and particle emission[29]
Ultrafine-particle emission rateparticles/min≈4 × 10¹⁰ median — the highest ultrafine-particle rate of the nine filaments in the chamber study, above every ABS tested[29]Not documented
Ventilation / filtration requirement1–5Ventilated room or enclosure recommended[29][13]None needed in a normal room[29]
Post-Processing
Sanding & machiningSands and machines well; the toughness means it cuts rather than chips[11]Not documented
Gluing & solvent weldingCyanoacrylate; dichloromethane solvent-welds PC but is a laboratory reagent[11]Not documented
Vapour / chemical smoothingAcetone attacks the ABS phase, so surface smoothing is partial rather than full[1]Not documented
Support material pairingPrints its own supports; 3DXTech sells a dedicated PC break-away support[11]Not documented
Solvents & Solubility
Soluble inDichloromethane and chloroform dissolve the PC phase; acetone, MEK and THF dissolve the ABS phase.[30][31]Chloroform dissolves the PLA phase (10 % w/v, 2–4 h at 23 °C); THF and DMF need 65 °C. Laboratory reagents.[32]
Softened or crazed byPetrol, esters, ether and 1 % alkali stress-crack the PC phase; aromatics and esters soften the ABS phase.[30][31]Acetone, ethyl acetate and toluene plasticise it but dissolve <1 % even at 65 °C; submersion in acetone crazes and destroys parts.[32][33]
Solvent welding & smoothing agentAcetone attacks only the ABS phase, so smoothing is partial; a dichloromethane cement welds the whole section.[1][34]Chloroform vapour smooths and welds PLA at the cost of tensile strength; acetone does not smooth it at all.[35][33]

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. Polymaker PC-ABS Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
  2. Firewire Flame Retardant PC/ABS Technical Data Sheet Rev 3.0 3DXTech · 2026-08 · tds
  3. PLA/PHA technical data sheet colorFabb · 2026-08 · tds
  4. PC-ABS — FDM Material Data Sheet Stratasys · 2023-08 · tds
  5. Polymaker product catalogue Polymaker · 2026-08 · vendor
  6. 3DXTech product catalogue 3DXTech · 2026-08 · vendor
  7. Reli3D PC-ABS Filament, Black, 1000 g spool Reli3D (Amazon US) · 2026-08 · vendor
  8. SUNLU PC-ABS 3D Printer Filament 1 kg SUNLU · 2026-08 · vendor
  9. woodFill technical data sheet colorFabb · 2026-08 · tds
  10. glowFill technical data sheet colorFabb · 2026-08 · tds
  11. Polycarbonate — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  12. Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
  13. ABS / ASA / PC Usage Guide Bambu Lab Wiki · 2026-08 · doc
  14. PC — material basics Polymaker Wiki · 2026-08 · doc
  15. 3DXTech 3DXMAX ABS product page 3DXTech · 2026-08 · vendor
  16. Filament Material Guide Prusa Knowledge Base · 2026-08 · doc
  17. Bambu Filament Technical Data Sheet V2.0 — PC Bambu Lab · 2026-08 · tds
  18. Prusament PC Blend Technical Datasheet v1.1 Prusa Polymers · 2022-02 · tds
  19. Bambu Filament Technical Data Sheet V3.0 — PLA Basic Bambu Lab · 2026-08 · tds
  20. PolyLite PLA Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
  21. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  22. TECANAT natural (PC) — stock shape properties Ensinger · 2026-08 · tds
  23. Experimental data for creep and dynamic mechanical properties of polycarbonate and polycarbonate/ABS Data in Brief 42:108264 · 2022-06 · paper
  24. BambuLab PLA Basic vs PLA Tough vs PLA-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  25. Polymaker PLA Pro vs PLA-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  26. Carbon Fiber PLA vs META-PLA vs PLA+ vs PLA by Sunlu — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  27. Mechanical Properties of Additively Manufactured Polymeric Materials — PLA and PETG — For Biomechanical Applications Polymers 16(13):1868 · 2024-06 · paper
  28. PLA — material guide Prusa Knowledge Base · 2026-08 · doc
  29. 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
  30. Makrolon — The chemical resistance (Makrolon 2800, 6 days at 23 °C and 50 °C) Covestro · 2016-12 · tds
  31. Chemical resistance — resistance of Ensinger plastics to chemicals (DIN 50 014, 23/50) Ensinger · 2026-08 · tds
  32. Solubility Study of Ingeo Biopolymer Grades in Common Organic Solvents (NWPD003) NatureWorks · 2019-10 · tds
  33. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc
  34. Weld-On 3 Acrylic Plastic Cement — technical data sheet (shipped as dichloromethane) IPS Corporation · 2002-07 · tds
  35. 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