3D Printing Info

Filament comparison

ABS-GF vs Magnetic

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

Glass-fibre ABS (ABS-GF) guideMagnetic filament guide

2 selected · all documented properties

Open these two in the interactive comparisonMore ABS-GF comparisonsMore Magnetic comparisons
ABS-GF vs Magnetic — documented properties and sources
PropertyGlass-fibre ABS (ABS-GF)ABSMagnetic filamentSPECIALTY
Market snapshot
Listing priceUSD/kg; dated snapshots$34.99/kg median; $24.49–$73.33/kg across 4 dated product listings$64.99/kg median; $64.99–$64.99/kg across 1 dated product listings
Identity & Market
Base polymer / chemistryABS reinforced with chopped glass fibre — 3DXTech's grade is nominally 10 wt%[1][2]PLA loaded with ferromagnetic iron powder, so printed parts respond to magnets[3]
Densityg/cm³1.08 (Bambu Lab) and 1.15 (3DXTech), ISO 1183[2][1]About 1.85 (Proto-pasta manufacturer figure) — 1.5× standard PLA[3]
Typical priceUSD/kg1 kg-equivalent spools span 24–73; the middle of the market is about 35[4][5][6][7]1 kg spools cluster near 65[8]
Price range across brandsUSD/kg24–73 across brands; Siraya Tech 24, Bambu Lab 30, SUNLU 40, 3DXTech 73[4][5][6][7]64–70 across formats; 1 kg spool 65, 500 g 70, 2 kg 70[8]
Market availability1–5Available from several mainstream brands[4][5]Niche, a handful of specialist brands[8]
Spool sizes & diameters1.75 and 2.85 mm; 750 g and 1 kg spools[5][4]1.75 and 2.85 mm; 0.1, 0.5, 1 and 2 kg spools[8]
Typical applicationsStiff, dimensionally stable enclosure and tooling parts; Bambu Lab notes the fibre blurs layer lines into a matte finish[2]Sensor targets, magnetic fixtures, and props that need to stick to a magnet or rust deliberately[3]
Printing Parameters
Nozzle temperature°C240–280 (Bambu Lab)[2]192 (Proto-pasta)[3]
Bed temperature°C80–100 (Bambu Lab)[2]60 (Proto-pasta)[3]
Enclosure / chamber requirement1–5Enclosure recommended — Bambu Lab specifies a 45–60 °C chamber[2][9]Open frame is fine[3]
Recommended chamber temperature°C45–60 (Bambu Lab)[2]Not documented
Part cooling fan0–80 % (Bambu Lab)[2]Not documented
Bed surface & adhesion aidClean the plate and apply glue; Simplify3D also lists Kapton tape and ABS slurry[9][10]Not documented
Maximum volumetric flow (mm³/s; see test conditions)mm³/s14 at Bambu Lab's 180 mm/s cap on a 0.4 mm nozzle at 0.2 mm layer[2][11]1.6–2.4 at Proto-pasta's 20–30 mm/s on a 0.4 mm nozzle at 0.2 mm layer[3]
Warping tendency1–5Moderate — needs adhesion aid or draught shield; Bambu Lab positions the fibre as reducing warping[2]Not documented
Bed-adhesion difficulty1–5Needs a specific surface plus adhesive[9]Not documented
Stringing / oozing tendency1–5Slight — Polymaker advises 1–2 mm retraction at 20–30 mm/s[12]Not documented
Overall printing difficulty1–5Intermediate — dry filament and a tuned profile; hardened nozzle mandatory[9]Intermediate — dry filament and a tuned profile; slow, and brittle in filament form[3]
Extruder requirementNot documentedProto-pasta advises an extrusion width 0.05 mm larger than the nozzle and warns feeding is inconsistent below 0.4 mm and on Bowden machines[3]
Hardware Wear & Reliability
Nozzle hardness required1–4Hardened steel required[9]Brass acceptable; hardened steel for volume work[3]
Abrasiveness1–5Highly abrasive — standard GF composite[9]Moderately abrasive — metal fill[3]
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 for the glass-filled grade[13][14]Moderate — needs dry filament and a clean nozzle; Prusa lists metal-filled composites as a higher clogging risk and recommends a 0.6 mm nozzle minimum[15]
Heat-creep / jam sensitivity1–5Slightly sensitive[10]Not documented
Hotend requirementNo special hot-end required[10]Proto-pasta recommends a wear-resistant or larger nozzle for longer service intervals[3]
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Moderate — 0.53 % saturated at 25 °C / 55 % RH (Bambu Lab)[2]Not documented
Equilibrium moisture content at ~50 % RH%0.53 saturated at 25 °C / 55 % RH (Bambu Lab)[2]Not documented
Drying temperature & time80 °C for 8 h (Bambu Lab)[2]Not documented
Symptoms when wetBubbling and popping at the nozzle, stringing and a rough surface[16]Not documented
Effect of moisture on strengthPolymaker rates ABS moderate-sensitivity and publishes no dry-versus-conditioned figures; absorbed water flashes to steam in the hotend and shows as bubbling and poor layer adhesion[16]Polymaker rates PLA low-sensitivity and publishes no dry-versus-conditioned figures; absorbed water flashes to steam and shows as bubbling and poor layer adhesion[16]
Storage requirementSealed with desiccant; Polymaker rates ABS moderate-sensitivity[16]Not documented
Mechanical Properties
Tensile strength (XY)MPa36 ± 3 printed XY, ISO 527 (Bambu Lab); 3DXTech quotes 68 at break[2][1]Not documented
Young's modulusMPa3160 ± 170 printed XY, ISO 527 (Bambu Lab); 3DXTech quotes 4210[2][1]Not documented
Elongation at break%6.3 ± 1.2 printed XY, ISO 527 (Bambu Lab); 3DXTech quotes 2 at break[2][1]Not documented
Flexural strengthMPa68 ± 4 printed XY, ISO 178 (Bambu Lab); 3DXTech quotes 70[2][1]Not documented
Flexural modulusMPa2860 ± 130 printed XY, ISO 178 (Bambu Lab); 3DXTech quotes 4420[2][1]Not documented
Charpy impact, notchedkJ/m²4.2 ± 1.1 printed XY, ISO 179, notched (Bambu Lab)[2]Not documented
Other impact dataCharpy unnotched 14.5 ± 1.5 printed XY (Bambu Lab, ISO 179)[2]Not documented
Layer adhesion / Z tensileMPa29 ± 3 printed Z, ISO 527 (Bambu Lab)[2]Not documented
Brittleness1–5Brittle — snaps with little warning; notched Charpy falls from 21.5 to 4.2 kJ/m² against unfilled Bambu Lab ABS[2][17]Brittle — Proto-pasta describes the filament as more brittle than standard PLA and needing extra care in handling[3]
Creep resistance / sustained load1–5Good — no creep test found; chopped glass fibre lifts modulus to 3160 MPa against 2200 for unfilled Bambu Lab ABS[2][17]Not documented
Fatigue / repeated-flex resistance1–5Below average — no S-N curve found; notched Charpy falls to 4.2 kJ/m² against 21.5 for unfilled Bambu Lab ABS[2][17]Not documented
Elasticity / flexibility1–5Rigid[2]Rigid[3]
Z strength as % of XY%81 (Bambu Lab, printed Z against XY tensile)[2]Not documented
Thermal Properties
HDT at 0.45 MPa°C99 (ISO 75, 0.45 MPa, Bambu Lab) against 87 for unfilled Bambu Lab ABS[2][17]Not documented
HDT at 1.8 MPa°C88 (ISO 75, 1.8 MPa, Bambu Lab) against 84 for unfilled Bambu Lab ABS[2][17]Not documented
Environment & Chemical
Outdoor durabilityNot documentedDeliberately rustable — Proto-pasta markets the iron content as oxidising when exposed to moisture[3]
Chemical resistanceGood against weak acids, weak alkalis, oils and grease; dissolved by acetone[18]Not documented
Food contactNot food safe — Polymaker cites potential chemical leaching[12]Not documented
Biodegradability / compostabilityNot biodegradable[12]Not documented
RecyclabilityMechanically recyclable but not accepted in household plastic collection[12]Not documented
Electrical & ESD propertiesNot documentedFerromagnetic: Proto-pasta states it responds to magnets and behaves similarly to pure iron[3]
Health & Safety
Fume toxicity1–5High — hazardous VOC such as styrene; enclosure and filtration needed[19][9]Low hazard — minimal VOC and particle emission; none of these materials was in the chamber study[19]
VOC emission rateµg/min12–113 styrene, the dominant VOC from every ABS and HIPS combination tested[19]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[19]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[19][9]Not documented
Ventilation / filtration requirement1–5Enclosure with carbon and HEPA filtration — an enclosure alone cut measured UFP by only about 35 %[19][9]Open a window / occasional ventilation[19]
Dust & fibre handling hazardGlass fibre is bound in the matrix; avoid inhaling sanding dust[1]Not documented
Post-Processing
Sanding & machiningSands well and takes filler before painting[12]Polishing and deliberate rusting are the intended finishes[3]
Painting & finishingPaints readily after light abrasion[12]Not documented
Support material pairingHIPS breaks away or dissolves in d-limonene; Bambu Lab sells a dedicated Support for ABS[20][9]Not documented
Dimensional accuracy & detailBambu Lab describes a smooth matte finish with micro-spot gloss that blurs layer lines[2]Not documented
Solvents & Solubility
Soluble inAcetone dissolves the resin and leaves the fibre as sludge; MEK, THF, ethyl acetate and chlorinated solvents do the same.[21][18]Chloroform dissolves the PLA matrix and leaves the iron powder behind; laboratory reagent, not workshop stock.[22][3]
Softened or crazed byPetrol and perchloroethylene soften it and benzene attacks it; d-limonene disrupts layer adhesion in some ABS and ASA grades.[21][23]Acetone and ethyl acetate plasticise the matrix rather than dissolving it; water attacks the exposed iron.[22][3]
Solvent welding & smoothing agentAcetone vapour reaches only the resin fraction, so the fibre is left standing proud of the smoothed surface.[24][18]None — PLA has no workshop-safe solvent, and the iron loading blocks the surface flow smoothing needs.[22]

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. FibreX ABS+GF10 Glass Fiber ABS Technical Data Sheet 3DXTech · 2026-08 · tds
  2. Bambu Filament Technical Data Sheet V1.0 — ABS-GF Bambu Lab · 2026-08 · tds
  3. Magnetic Iron PLA — product page and technical data Proto-pasta · 2026-08 · tds
  4. ABS-GF — product page Bambu Lab US Store · 2026-08 · vendor
  5. 3DXTech product catalogue 3DXTech · 2026-08 · vendor
  6. Siraya Tech Fibreheart ABS-GF Filament product page Siraya Tech · 2026-08 · vendor
  7. SUNLU ABS-GF (ABS Glass Fiber) 3D Printer Filament 1 kg SUNLU · 2026-08 · vendor
  8. Proto-pasta product catalogue Proto-pasta · 2026-08 · vendor
  9. ABS / ASA / PC Usage Guide Bambu Lab Wiki · 2026-08 · doc
  10. ABS — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  11. Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
  12. ABS — material basics Polymaker Wiki · 2026-08 · doc
  13. FIBREX ABS+GF — product page (print recommendations) 3DXTech · 2026-08 · doc
  14. Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
  15. Composite materials with metal or wood particles Prusa Knowledge Base · 2026-08 · doc
  16. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  17. Bambu Filament Technical Data Sheet V3.0 — ABS Bambu Lab · 2026-08 · tds
  18. PolyLite ABS Technical Data Sheet (V5.5 served at this URL) Polymaker · 2024-11 · tds
  19. 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
  20. HIPS — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  21. Chemical resistance — resistance of Ensinger plastics to chemicals (DIN 50 014, 23/50) Ensinger · 2026-08 · tds
  22. Solubility Study of Ingeo Biopolymer Grades in Common Organic Solvents (NWPD003) NatureWorks · 2019-10 · tds
  23. HIPS — Knowledge Base Prusa Research · 2026-08 · doc
  24. Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc