3D Printing Info

Filament comparison

ABS+ vs PLA Silk

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

ABS+ / Tough ABS guideSilk PLA guide

2 selected · all documented properties

Open these two in the interactive comparisonMore ABS+ comparisonsMore PLA Silk comparisons
ABS+ vs PLA Silk — documented properties and sources
PropertyABS+ / Tough ABSABSSilk PLAPLA
Market snapshot
Listing priceUSD/kg; dated snapshots$26.49/kg median; $15.99–$29.99/kg across 4 dated product listings$19.49/kg median; $9.75–$24.99/kg across 15 dated product listings
Identity & Market
Base polymer / chemistryABS reformulated for lower warping and a higher glass transition; Polymaker's ABS Pro and ABS Max reach Tg 114.9 and 126.3 °C against 101 °C for PolyLite ABS[1][2][3]PLA with a gloss-forming additive package; suppliers publish the composition as polylactic acid only[4]
Densityg/cm³1.04 (ABS Pro) and 1.06 (ABS Max), ISO 1183[1][2]1.27 (ISO 1183)[4]
Typical priceUSD/kg1 kg spools cluster near 27[5]Mainstream 1 kg spools cluster near 20[6][7][8]
Price range across brandsUSD/kg16–30 across brands; SUNLU E-ABS 16, Polymaker ABS Pro 25, YXPOLYER ABS Enhanced 28, Polymaker ABS Max 30[5][9][10]10–25 across brands; CHCKX 10 in a 16-roll bundle, SUNLU 13, LANDU 18, YXPOLYER 20, Polymaker 22, Devil Design 25[11][12][13][14][15]
Market availability1–5Available from several mainstream brands[5]Stocked by most mainstream brands[6][11][16]
Spool sizes & diameters1.75 and 2.85 mm; 1 kg spools[5]1.75 mm; 1 and 1.1 kg spools; dual- and tri-colour coextruded variants[17][18]
Typical applicationsLarge enclosure and automotive parts where plain ABS warps or softens too early[1][2]Decorative prints where surface gloss matters more than strength[4]
Diameter tolerance± mmNot documented±0.03 (Bambu Lab)[19]
Printing Parameters
Nozzle temperature°C270–290 (ABS Pro); 270–300 (ABS Max) — 25–35 °C above plain ABS[1][2]210–240 — 20 °C above the plain PLA window[4]
Bed temperature°C120 (ABS Max)[2]35–45[4]
Enclosure / chamber requirement1–5Enclosure required (passive)[1][2][20]Open frame is fine[4][21]
Part cooling fanNot documentedFan on[4]
Bed surface & adhesion aidClean the plate and apply glue; Simplify3D also lists Kapton tape and ABS slurry[20][22]Cool Plate SuperTack, smooth PEI or textured PEI[4]
Maximum volumetric flow (mm³/s; see test conditions)mm³/sUp to 250 mm/s (ABS Pro) and 200 mm/s (ABS Max), equivalent to 20 and 16 on a 0.4 mm nozzle at 0.2 mm layer[1][2][23]Not documented
Warping tendency1–5High — enclosure needed for reliable large parts[20]None[4]
Bed-adhesion difficulty1–5Needs a specific surface plus adhesive[20]Sticks to anything[24]
Stringing / oozing tendency1–5Slight — Polymaker advises 1–2 mm retraction at 20–30 mm/s[25]Not documented
Overall printing difficulty1–5Intermediate — dry filament and a tuned profile; the hotter nozzle rules out PTFE-lined hotends[1][2]Easy — minor profile tuning; hotter nozzle and slower cap of 250 mm/s[4]
Hardware Wear & Reliability
Nozzle hardness required1–4Brass fine indefinitely[20]Brass fine indefinitely[21]
Abrasiveness1–5Non-abrasive[20]Non-abrasive[26][21]
Nozzle clog risk1–5Low — unfilled ABS compound; no special hot-end required and clogging is not among the listed drawbacks[22][21]Very low[21]
Heat-creep / jam sensitivity1–5Slightly sensitive[22]Moderate — good heatbreak cooling needed; PLA softens below 60 °C[27]
Hotend requirementNo special hot-end required[22]No special hot-end required[24]
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Moderate — 0.51 % maximum water absorption (ABS Pro)[1]Moderate — 0.40 % saturated at 25 °C / 55 % RH[4]
Equilibrium moisture content at ~50 % RH%0.51 maximum water absorption (Polymaker ABS Pro)[1]0.40 saturated at 25 °C / 55 % RH (Bambu Lab)[4]
Drying temperature & time70 °C for 6 h (ABS Max)[2]55 °C for 8 h in a forced-air dryer, or 65–75 °C for 12 h on an X1 heatbed[4][28]
Symptoms when wetBubbling and popping at the nozzle, stringing and a rough surface[29]Bubbling and popping at the nozzle, stringing, rough surface and weak layers[29]
Effect of moisture on strengthPolymaker rates ABS moderate-sensitivity and publishes no dry-versus-conditioned figures[29]Polymaker rates PLA low-sensitivity — the loss shows as poor layer adhesion and brittle layers rather than a published strength figure[29]
Storage requirementSealed with desiccant; Polymaker rates ABS moderate-sensitivity[29]Sealed with desiccant below 20 % RH; shelf life at ambient is long[30][24]
Mechanical Properties
Tensile strength (XY)MPa34.9 (ABS Pro) and 35.7 (ABS Max) printed XY, ISO 527[1][2]33 (printed XY, ISO 527); eSun Silk broke 22 % below the 16-brand PLA mean on identical 4×4 mm bars[4][31]
Young's modulusMPa2330 (ABS Pro) and 2320 (ABS Max) printed XY, ISO 527[1][2]2130 (printed XY, ISO 527)[4]
Elongation at break%6.7 (ABS Max) and 7.3 (ABS Pro) at break, printed XY, ISO 527[1][2]2.8 (printed XY, ISO 527) — a quarter of PLA Basic at 12.2[4][30]
Flexural strengthMPa60.1 (ABS Pro) and 63.3 (ABS Max) printed XY, ISO 178[1][2]75 (printed XY, ISO 178)[4]
Flexural modulusMPa2330 (ABS Pro) and 2500 (ABS Max) printed XY, ISO 178[1][2]2460 (printed XY, ISO 178)[4]
Charpy impact, notchedkJ/m²10.5 (ABS Max) and 14.5 (ABS Pro) printed XY, ISO 179, notched[1][2]10.3 (printed XY, ISO 179, notched); unnotched 18.5[4]
Layer adhesion / Z tensileMPa21.9 (ABS Pro) and 25.4 (ABS Max) printed Z, ISO 527[1][2]25 (printed Z, ISO 527), and flexural Z collapses to 30 against 75 in XY; eSun Silk broke at 12.3 kg where twelve of the 16 plain PLAs managed 44.6–61.5 kg[4][31][32]
Brittleness1–5Tough — absorbs impact, yields before breaking[1][2]Brittle — snaps with little warning[4]
Creep resistance / sustained load1–5Moderate — no creep test found; Tg of 115 °C (ABS Pro) and 126 °C (ABS Max) keeps room-temperature service far below softening[1][2]Poor — no silk-specific creep data published; plain PLA sagged from 12 to 18.7–20.3 mm over 5 days at 1.25 kg[33][34]
Fatigue / repeated-flex resistance1–5Moderate — no S-N curve found; 6.7–7.3 % elongation and 10.5–14.5 kJ/m² notched Charpy, below unfilled Bambu Lab ABS[1][2][35]Poor — no grade-specific S-N curve; plain printed PLA ran 38 000–49 000 cycles at 30 % of tensile strength (R = 0.2)[36][27]
Elasticity / flexibility1–5Rigid[1]Rigid[4]
Z strength as % of XY%63 (ABS Pro) and 71 (ABS Max), printed[1][2]76 by tensile, 40 by flexural (printed, Bambu Lab)[4]
Thermal Properties
HDT at 0.45 MPa°C106.4 (ABS Pro) and 118.1 (ABS Max), ISO 75 at 0.45 MPa[1][2]60 (ISO 75, 0.45 MPa)[4]
HDT at 1.8 MPa°C101.4 (ABS Pro) and 113.1 (ABS Max), ISO 75 at 1.8 MPa[1][2]56 (ISO 75, 1.8 MPa)[4]
Glass transition (Tg)°C114.9 (ABS Pro) and 126.3 (ABS Max), DSC[1][2]57 (DSC)[4]
Melting point / Vicat°CAmorphous — no melting point; Vicat 116.1 (ABS Pro) and 127.4 (ABS Max), ISO 306[1][2]158 peak melt (DSC); Vicat 66 °C[4]
Continuous service temperature°CNot documented50 — a loaded bar begins to move at this temperature (My Tech Fun, eSun eSilk PLA)[32]
Annealing responseNot documented50–55 °C for 6–12 h[4]
Thermal expansion (CTE)µm/m·K86–89 for printed unfilled ABS (fibre Bragg grating, 25–50 °C); no grade-specific measurement published[37]Not documented
Flammability / UL 94Not documentedFlammable; no UL 94 rating published by the major brands[30][38]
Environment & Chemical
UV resistance1–5Months outdoors before embrittlement[25]Degrades within weeks outdoors[27][39]
Chemical resistanceGood against weak acids, weak alkalis, oils and grease; dissolved by acetone[3]Good against weak acids, oils and grease; poor against strong acids and alkalis; dissolved by chloroform, THF and hot benzene[38][27]
Water / humidity resistance in service1–5Not documentedGood — insoluble in water[30]
Food contactNot food safe — Polymaker cites potential chemical leaching[25]Base resin is food-contact grade, but printed layer grooves harbour bacteria; Prusa advises against food use[27]
Biodegradability / compostabilityNot biodegradable[25]Industrially compostable only — needs sustained 55 °C; not home compostable[40][27]
RecyclabilityMechanically recyclable but not accepted in household plastic collection[25]Mechanically recyclable; not accepted in household plastic collection[40]
Health & Safety
Fume toxicity1–5High — hazardous VOC such as styrene; enclosure and filtration needed[41][20]Low hazard — minimal VOC and particle emission[41]
VOC emission rateµg/min12–113 styrene, the dominant VOC from every ABS and HIPS combination tested[41]Not documented
Ultrafine-particle emission rateparticles/min2 × 10¹⁰ to 9 × 10¹⁰ median across all ABS printers, two orders of magnitude above PLA's ≈1 × 10⁸[41]Not documented
Hazardous species emittedStyrene dominates. Bambu Lab states ABS and ASA release harmful gases such as styrene at printing temperature, which can be toxic and cause dizziness or nausea[41][20]Not documented
Ventilation / filtration requirement1–5Enclosure with carbon and HEPA filtration — an enclosure alone cut measured UFP by only about 35 %[41][20]None needed in a normal room[41]
Post-Processing
Sanding & machiningSands well and takes filler before painting[25]Wet sanding — dry sanding heats the surface by friction and smears it[39][27]
Painting & finishingPaints readily after light abrasion[25]Not documented
Gluing & solvent weldingNot documentedCyanoacrylate for most joints; some grades partially dissolve and bond with acetone[27][42]
Vapour / chemical smoothingAcetone vapour smoothing works[3]No practical vapour smoothing — only chloroform, hot benzene or THF, which are laboratory-only[27]
Support material pairingHIPS breaks away or dissolves in d-limonene; Bambu Lab sells a dedicated Support for ABS[43][20]Support for PLA (Bambu Lab)[4]
Dimensional accuracy & detailNot documented55° overhangs and 30 mm bridges; gloss hides fine detail and is destroyed by sanding[4]
Solvents & Solubility
Soluble inAcetone dissolves it — the basis of ABS slurry; so do MEK, THF, ethyl acetate, chloroform, dichloromethane and toluene.[44][3]Chloroform: 10 % w/v in 2–4 h at 23 °C, every grade and morphology; THF and DMF only at 65 °C. Laboratory reagents.[45]
Softened or crazed byPetrol and perchloroethylene soften it and benzene attacks it; d-limonene disrupts layer adhesion in some ABS and ASA grades.[44][46]Acetone, ethyl acetate and toluene plasticise it but dissolve <1 % even at 65 °C; submersion in acetone crazes and destroys parts.[45][47]
Solvent welding & smoothing agentAcetone: about 20 min of vapour at 80 °C over 5 mm of liquid. Prusa measured layer adhesion more than doubled.[47]Chloroform vapour smooths and welds PLA at the cost of tensile strength; acetone does not smooth it at all.[48][47]

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 ABS Pro Technical Data Sheet V1 (2026-05-29) Polymaker · 2026-05 · tds
  2. Polymaker ABS Max Technical Data Sheet V1.1 (2026-06-01) Polymaker · 2026-06 · tds
  3. PolyLite ABS Technical Data Sheet (V5.5 served at this URL) Polymaker · 2024-11 · tds
  4. Bambu Filament Technical Data Sheet V1.0 — PLA Silk+ Bambu Lab · 2026-08 · tds
  5. Polymaker product catalogue Polymaker · 2026-08 · vendor
  6. Panchroma Silk PLA collection Polymaker Shop · 2026-08 · vendor
  7. Spectrum PLA Silk — product listing 3DJake International · 2026-08 · vendor
  8. 3DJake ecoPLA Silk Black 1.75mm 1000g 3DJake International · 2026-08 · vendor
  9. SUNLU E-ABS (Easy ABS) 3D Printer Filament 1 kg SUNLU · 2026-08 · vendor
  10. YXPOLYER ABS Enhanced product page YXPOLYER · 2026-08 · vendor
  11. Sunlu Silk PLA+ 1.75mm 1kg Sunlu Official Store · 2026-08 · vendor
  12. Bambu Lab PLA Silk 1.75mm 1kg 3D Universe · 2026-08 · vendor
  13. CHCKX 16 Pack Silk Dual Color PLA Filament Bundle CHCKX (Amazon US) · 2026-08 · vendor
  14. YXPOLYER Silk PLA Black&Gold product page YXPOLYER · 2026-08 · vendor
  15. LANDU Silk Tri-Color PLA Filament 1.75 mm 1 kg LANDU (Amazon US) · 2026-08 · vendor
  16. Overture Silk PLA 1.75mm Overture3D · 2026-08 · vendor
  17. eSUN PLA-Silk Magic 1.75mm eSUN Official Store · 2026-08 · vendor
  18. JAYO Silk PLA+ 1.75mm 1.1kg JAYO Official Store · 2026-08 · vendor
  19. PLA Basic — product page Bambu Lab US Store · 2026-08 · vendor
  20. ABS / ASA / PC Usage Guide Bambu Lab Wiki · 2026-08 · doc
  21. Filament Material Guide Prusa Knowledge Base · 2026-08 · doc
  22. ABS — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  23. Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
  24. PLA — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  25. ABS — material basics Polymaker Wiki · 2026-08 · doc
  26. Prusament PLA — material page Prusa Polymers · 2026-08 · doc
  27. PLA — material guide Prusa Knowledge Base · 2026-08 · doc
  28. Filament Drying Recommendations Bambu Lab Wiki · 2026-08 · doc
  29. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  30. Bambu Filament Technical Data Sheet V3.0 — PLA Basic Bambu Lab · 2026-08 · tds
  31. 16 PLA brand comparison test — results spreadsheet My Tech Fun (Igor Gaspar) · 2022-10 · test
  32. Testing eSun PLA filaments: PLA-ST vs PLA+ vs Silk PLA My Tech Fun (Igor Gaspar) · 2026-08 · test
  33. BambuLab PLA Basic vs PLA Tough vs PLA-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  34. PolyTerra PLA vs PLA+ — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  35. Bambu Filament Technical Data Sheet V3.0 — ABS Bambu Lab · 2026-08 · tds
  36. Mechanical Properties of Additively Manufactured Polymeric Materials — PLA and PETG — For Biomechanical Applications Polymers 16(13):1868 · 2024-06 · paper
  37. Characterization of Thermal Expansion Coefficient of 3D Printing Polymeric Materials Using Fiber Bragg Grating Sensors Materials 17(18):4668 · 2024-09 · paper
  38. PolyLite PLA Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
  39. Prusament PLA Technical Data Sheet v1.0 Prusa Polymers · 2018-09 · tds
  40. Filamentive PLA (recycled) — product page Filamentive · 2026-08 · vendor
  41. 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
  42. Prusament rPLA Corn Pigment 1kg — product page Prusa Research · 2026-08 · vendor
  43. HIPS — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  44. Chemical resistance — resistance of Ensinger plastics to chemicals (DIN 50 014, 23/50) Ensinger · 2026-08 · tds
  45. Solubility Study of Ingeo Biopolymer Grades in Common Organic Solvents (NWPD003) NatureWorks · 2019-10 · tds
  46. HIPS — Knowledge Base Prusa Research · 2026-08 · doc
  47. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc
  48. 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