3D Printing Info

Filament comparison

PLA Stone vs TPE SEBS

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

Stone-filled PLA guideTPE (SEBS) guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PLA Stone comparisonsMore TPE SEBS comparisons
PLA Stone vs TPE SEBS — documented properties and sources
PropertyStone-filled PLAPLATPE (SEBS)FLEX
Market snapshot
Listing priceUSD/kg; dated snapshots$22.99/kg median; $15.99–$49.16/kg across 6 dated product listings$98.25/kg median; $76.50–$120.00/kg across 2 dated product listings
Identity & Market
Base polymer / chemistryPLA filled with stone or mineral powder — Formfutura StoneFil declares 40–50 wt% stone powder[1][2]Styrene-ethylene-butadiene-styrene thermoplastic elastomer — a styrenic rubber, not a polyurethane[3]
Densityg/cm³1.22 (Bambu Lab PLA Marble) and 1.50–1.70 (Formfutura StoneFil), ISO 1183[2][1]1.044 printed part density (BASF Ultrafuse TPS 90A, ISO 1183-1) — the lightest elastomer here[3]
Typical priceUSD/kg1 kg spools cluster near 21[4][5]1 kg-equivalent spools cluster near 77[6]
Price range across brandsUSD/kg16–49 across brands; SUNLU 16, ELEGOO 19, Polymaker 21, Bambu Lab 25, Prusament 38, Filament PM MarbleJet 49 on 0.5 kg spools[7][5][4][8][9][10]77 for the Recreus 600 g spool; Proto-pasta only lists a 50 g coil, which prices at 120[6][11]
Market availability1–5Stocked by most mainstream brands[4][5][7]Niche, a handful of specialist brands[3][11][6]
Spool sizes & diameters1.75 and 2.85 mm; 0.5 and 1 kg spools plus refills[5][1]1.75 and 2.85 mm; 0.05 and 0.6 kg spools[3][6]
Typical applicationsArchitectural models, sculpture and props with a matte mineral surface[2]Soft-touch overmoulds and skin-contact parts where a non-polyurethane elastomer is wanted[3]
Printing Parameters
Nozzle temperature°C190–230 (Bambu Lab)[2]260–280 (BASF Ultrafuse TPS 90A) — far hotter than any TPU here[3]
Bed temperature°C35–45 (Bambu Lab)[2]70–90 (BASF Ultrafuse TPS 90A)[3]
Enclosure / chamber requirement1–5Open frame is fine[2]Open frame is fine[3]
Part cooling fanFan on[2]Not documented
Bed surface & adhesion aidNot documentedPEI 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 documented0.8–2.4 at the 10–30 mm/s BASF specifies on a 0.4 mm nozzle at 0.2 mm layer — the slowest material in this group[3]
Overall printing difficulty1–5Easy — minor profile tuning; 0.2 mm nozzles are not usable[14]Advanced — enclosure, hardware upgrades, tuning[3]
Extruder requirementNozzles below 0.4 mm are not compatible (Bambu Lab)[14]Nozzle 0.4 mm or larger; BASF caps print speed at 10–30 mm/s[3]
Hardware Wear & Reliability
Nozzle hardness required1–4Brass acceptable; hardened steel for volume work — Bambu Lab's compatibility table says no hardened nozzle is needed while the note under the same table groups PLA Marble with particle-filled materials that should always use one[14]Brass fine indefinitely[15]
Abrasiveness1–5Moderately abrasive — stone fill[14][1]Non-abrasive[15]
Nozzle clog risk1–5Moderate — needs dry filament and a clean nozzle[14]Moderate — needs dry filament and a clean nozzle; BASF caps print speed at 10–30 mm/s and Simplify3D warns that raised feed rates on flexibles most likely end in a jam[12][3]
Hotend requirementNot documentedNo special hot-end required, but a direct-drive extruder is (Simplify3D)[12]
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Moderate — 0.44 % saturated at 25 °C / 55 % RH[2]Negligible (<0.1 % EMC) — BASF states drying is not necessary, unique among the elastomers here[3]
Equilibrium moisture content at ~50 % RH%0.44 saturated at 25 °C / 55 % RH (Bambu Lab)[2]Not documented
Drying temperature & timeNot documentedNone — BASF states Ultrafuse TPS 90A arrives in a printable condition and drying is not necessary[3]
Symptoms when wetNot documentedBubbling and popping at the nozzle, stringing and a rough surface[16]
Effect of moisture on strengthPolymaker 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[16]Not applicable — the SEBS chemistry has no amide or ester linkages to take up water, and BASF specifies no drying at all[3]
Storage requirementNot documentedSealed with desiccant; often kept in a dryer during the print[16]
Mechanical Properties
Tensile strength (XY)MPa33 ± 4 printed XY, ISO 527 (Bambu Lab)[2]Not documented
Young's modulusMPa2330 ± 240 printed XY, ISO 527 (Bambu Lab)[2]Not documented
Elongation at break%6.7 ± 0.5 printed XY, ISO 527 (Bambu Lab)[2]Not documented
Flexural strengthMPa75 ± 5 printed XY, ISO 178 (Bambu Lab)[2]Not documented
Flexural modulusMPa2920 ± 180 printed XY, ISO 178 (Bambu Lab)[2]Not documented
Charpy impact, notchedkJ/m²9.5 ± 2.6 printed XY, ISO 179, notched (Bambu Lab)[2]Not documented
Other impact dataCharpy unnotched 24.0 printed XY (Bambu Lab, ISO 179)[2]Not documented
Layer adhesion / Z tensileMPa30 ± 4 printed Z, ISO 527 (Bambu Lab)[2]Not documented
Brittleness1–5Brittle — snaps with little warning[2]Very ductile — bends far before failing[3]
Hardness (scale-specific)Shore A / Shore D / RockwellNot documented89 Shore A and 29 Shore D (BASF Ultrafuse TPS 90A, ISO 7619-1)[3]
Creep resistance / sustained load1–5Poor — no stone-filled creep test; plain printed PLA sagged from 12 to 16.2–21.8 mm over 5 days at 1.25 kg[17][18][19]Poor — no SEBS creep test; a printed 95A TPU bar crept from 74.5 to 82.7 mm over 5 days at 1.25 kg[20]
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 and the mineral filler leaves a brittle compound[21][2]Excellent — living hinges viable[13]
Elasticity / flexibility1–5Rigid[2]Rubbery / highly elastic[3]
Z strength as % of XY%91 by tensile, 73 by flexural (printed, Bambu Lab)[2]Not documented
Wear resistance & frictionNot documentedAbrasion 111 mm³ (ISO 4649) — the poorest abrasion resistance in this group, well behind TPU[3]
Thermal Properties
HDT at 0.45 MPa°C56 (ISO 75, 0.45 MPa)[2]Not documented
HDT at 1.8 MPa°C53 (ISO 75, 1.8 MPa)[2]Not documented
Glass transition (Tg)°C56 (DSC)[2]Not documented
Melting point / Vicat°C156 peak melt (DSC); Formfutura gives a 120–170 melting range for StoneFil[2][1]242–249 melting (BASF Ultrafuse TPS 90A, ISO 11357-3)[3]
Environment & Chemical
UV resistance1–5Degrades within weeks outdoors[22]Good — years with some colour shift; Polymaker lists UV exposure among the conditions TPU withstands[13]
Chemical resistanceNot documentedWithstands industrial solvents and UV exposure (Polymaker)[13]
Water / humidity resistance in service1–5Not documentedExcellent — essentially unaffected[3]
Food contactNot documentedNot food safe without specific certification (Polymaker)[13]
Biodegradability / compostabilityNot documentedNot biodegradable[13]
RecyclabilityNot documentedNot accepted in household plastic collection[13]
Health & Safety
Fume toxicity1–5Low hazard — minimal VOC and particle emission[23]Low hazard — minimal VOC and particle emission; TPU was not among the nine filaments in the chamber study[23]
Ventilation / filtration requirement1–5None needed in a normal room[23]Open a window / occasional ventilation[23]
Dust & fibre handling hazardFormfutura's SDS sets an occupational limit of 1 mg/m³ for the stone powder and lists it as both a fibre and a particulate — do not dry-sand without extraction[1]Not documented
Post-Processing
Sanding & machiningSands to a stone-like matte surface[1]Difficult to sand or smooth; Polymaker limits post-processing to trimming or tumbling[13]
Gluing & solvent weldingNot documentedCyanoacrylate bonds TPU; no common solvent welds it[13]
Vapour / chemical smoothingNot documentedNo 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 mineral surface hides layer lines; 55° overhangs and 30 mm bridges as for plain PLA[2]Not documented
Solvents & Solubility
Soluble inChloroform dissolves the PLA matrix (10 % w/v, 2–4 h at 23 °C) and leaves the filler as loose sludge; laboratory reagent.[24]Toluene dissolves SEBS at room temperature — Kraton quotes solution viscosity at 25 % mass in toluene, 25 °C.[25]
Softened or crazed byAcetone, ethyl acetate and toluene plasticise the matrix but dissolve <1 % even at 65 °C; acetone submersion crazes parts.[24][26]Soaking in hydrocarbon solvents and oils deteriorates it; short exposures are tolerated. Resists water, acids and bases.[25]
Solvent welding & smoothing agentChloroform vapour attacks only the resin fraction, so the filler is left standing proud; no workshop-safe agent exists.[27][26]Toluene will weld it, though the joint stays soft; no workshop-safe agent, and vapour smoothing is not practical.[25]

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. StoneFil safety data sheet Formfutura · 2026-08 · msds
  2. Bambu Filament Technical Data Sheet — PLA Marble Bambu Lab · 2026-08 · tds
  3. Ultrafuse TPS 90A Technical Data Sheet (Version 1.1, SEBS) BASF Forward AM · 2020-12 · tds
  4. PLA Marble — product page Bambu Lab US Store · 2026-08 · vendor
  5. Polymaker product catalogue Polymaker · 2026-08 · vendor
  6. Recreus product catalogue Recreus · 2026-08 · vendor
  7. ELEGOO product catalogue ELEGOO · 2026-08 · vendor
  8. Printed Solid product catalogue Printed Solid · 2026-08 · vendor
  9. SUNLU High Speed PLA Marble 3D Printer Filament 1 kg SUNLU · 2026-08 · vendor
  10. Filament PM PLA MarbleJet technical data sheet Filament PM (Plasty Mladec) · 2026-08 · tds
  11. Proto-pasta product catalogue Proto-pasta · 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 Usage Guide Bambu Lab Wiki · 2026-08 · doc
  15. Extrudr Product Catalogue (DURAPRO PA12 data block) Extrudr · 2025-03 · tds
  16. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  17. BambuLab PLA Basic vs PLA Tough vs PLA-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  18. Polymaker PLA Pro vs PLA-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  19. Carbon Fiber PLA vs META-PLA vs PLA+ vs PLA by Sunlu — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  20. BambuLab TPU 95A HF vs Qidi TPU 95A HF — results spreadsheet My Tech Fun (Igor Gaspar) · 2024-02 · test
  21. Mechanical Properties of Additively Manufactured Polymeric Materials — PLA and PETG — For Biomechanical Applications Polymers 16(13):1868 · 2024-06 · paper
  22. PLA — material guide Prusa Knowledge Base · 2026-08 · doc
  23. 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
  24. Solubility Study of Ingeo Biopolymer Grades in Common Organic Solvents (NWPD003) NatureWorks · 2019-10 · tds
  25. KRATON polymers Grade Range — chemical resistance and toluene solution data Kraton Corporation · 2025-07 · tds
  26. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc
  27. 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