3D Printing Info

Filament comparison

PLA Stone vs PMMA

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

Stone-filled PLA guidePMMA (acrylic) guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PLA Stone comparisonsMore PMMA comparisons
PLA Stone vs PMMA — documented properties and sources
PropertyStone-filled PLAPLAPMMA (acrylic)ENGINEERING
Market snapshot
Listing priceUSD/kg; dated snapshots$22.99/kg median; $15.99–$49.16/kg across 6 dated product listings$49.99/kg median; $49.99–$49.99/kg across 1 dated product listings
Identity & Market
Base polymer / chemistryPLA filled with stone or mineral powder — Formfutura StoneFil declares 40–50 wt% stone powder[1][2]Poly(methyl methacrylate) — acrylic, sold for 3D printing as a transparent glass substitute[3]
Densityg/cm³1.22 (Bambu Lab PLA Marble) and 1.50–1.70 (Formfutura StoneFil), ISO 1183[2][1]Not documented
Typical priceUSD/kg1 kg spools cluster near 21[4][5]1 kg spools cluster near 50[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]50 at Push Plastic's 1 kg listing; 3 kg spools run the same per kilogram[6]
Market availability1–5Stocked by most mainstream brands[4][5][7]Special order, 1–2 makers worldwide[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; 1 and 3 kg spools[6]
Typical applicationsArchitectural models, sculpture and props with a matte mineral surface[2]Transparent covers and light guides where PC's yellowing or cost rules it out[3]
Printing Parameters
Nozzle temperature°C190–230 (Bambu Lab)[2]Not documented
Bed temperature°C35–45 (Bambu Lab)[2]Not documented
Enclosure / chamber requirement1–5Open frame is fine[2]Not documented
Part cooling fanFan on[2]Not documented
Overall printing difficulty1–5Easy — minor profile tuning; 0.2 mm nozzles are not usable[11]Not documented
Extruder requirementNozzles below 0.4 mm are not compatible (Bambu Lab)[11]Not documented
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[11]Not documented
Abrasiveness1–5Moderately abrasive — stone fill[11][1]Not documented
Nozzle clog risk1–5Moderate — needs dry filament and a clean nozzle[11]Not documented
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Moderate — 0.44 % saturated at 25 °C / 55 % RH[2]Not documented
Equilibrium moisture content at ~50 % RH%0.44 saturated at 25 °C / 55 % RH (Bambu Lab)[2]Not documented
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[12]Not documented
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]Not documented
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[13][14][15]Not documented
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[16][2]Not documented
Elasticity / flexibility1–5Rigid[2]Not documented
Z strength as % of XY%91 by tensile, 73 by flexural (printed, Bambu Lab)[2]Not documented
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]Not documented
Environment & Chemical
UV resistance1–5Degrades within weeks outdoors[17]Not documented
Health & Safety
Fume toxicity1–5Low hazard — minimal VOC and particle emission[18]Not documented
Ventilation / filtration requirement1–5None needed in a normal room[18]Not documented
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]Not documented
Support material pairingSupport for PLA (Bambu Lab)[2]Not documented
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.[19]Acetone, MEK, ethyl and butyl acetate, THF, chloroform and carbon tetrachloride dissolve it; the last two are laboratory reagents.[20]
Softened or crazed byAcetone, ethyl acetate and toluene plasticise the matrix but dissolve <1 % even at 65 °C; acetone submersion crazes parts.[19][21]Alcohols, aliphatic hydrocarbons, oils and phthalate plasticisers craze it, and the threshold falls as stress rises.[20]
Solvent welding & smoothing agentChloroform vapour attacks only the resin fraction, so the filler is left standing proud; no workshop-safe agent exists.[22][21]Dichloromethane acrylic cement (IPS Weld-On 3): 2–5 min soak, 17.2 MPa lap shear at one week. Controlled carcinogen.[23]

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. PMMA Filament 1.75mm 1kg — product page Push Plastic · 2026-08 · vendor
  4. PLA Marble — product page Bambu Lab US Store · 2026-08 · vendor
  5. Polymaker product catalogue Polymaker · 2026-08 · vendor
  6. Push Plastic product catalogue Push Plastic · 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. PLA Usage Guide Bambu Lab Wiki · 2026-08 · doc
  12. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  13. BambuLab PLA Basic vs PLA Tough vs PLA-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  14. Polymaker PLA Pro vs PLA-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  15. Carbon Fiber PLA vs META-PLA vs PLA+ vs PLA by Sunlu — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
  16. Mechanical Properties of Additively Manufactured Polymeric Materials — PLA and PETG — For Biomechanical Applications Polymers 16(13):1868 · 2024-06 · paper
  17. PLA — material guide Prusa Knowledge Base · 2026-08 · doc
  18. 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
  19. Solubility Study of Ingeo Biopolymer Grades in Common Organic Solvents (NWPD003) NatureWorks · 2019-10 · tds
  20. Chemical resistance of PMMA products Mitsubishi Chemical (Acrypet) · 2026-08 · tds
  21. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc
  22. 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
  23. Weld-On 3 Acrylic Plastic Cement — technical data sheet (shipped as dichloromethane) IPS Corporation · 2002-07 · tds