3D Printing Info

Filament comparison

PA6-GF vs POM

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

Glass-fibre PA6 (PA6-GF) guidePOM (acetal) guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PA6-GF comparisonsMore POM comparisons
PA6-GF vs POM — documented properties and sources
PropertyGlass-fibre PA6 (PA6-GF)PAPOM (acetal)ENGINEERING
Market snapshot
Listing priceUSD/kg; dated snapshots$59.98/kg median; $39.99–$130.00/kg across 6 dated product listingsNot documented
Identity & Market
Base polymer / chemistryPA6 reinforced with chopped glass fibre — Polymaker's grade is 25 wt%[1][2]Polyoxymethylene, normally the copolymer POM-C. Apium's filament grade is POM-C with antistatic additives; no unfilled POM filament was found on sale[3][4]
Densityg/cm³1.14 (Bambu Lab) and 1.20 (Polymaker Fiberon), ISO 1183[2][1]1.41 (extruded POM-C stock)[3]
Typical priceUSD/kg1 kg-equivalent spools span 40–130; the middle of the market is about 60[2][5][6]Not documented
Price range across brandsUSD/kg40–130 across brands; SUNLU 40, YXPOLYER 45, Polymaker Fiberon and Bambu Lab 60, 3DXTech FibreX 87, Obsidian Nylon 6+GF 130[5][2][7][6][8]Not documented
Market availability1–5Stocked by most mainstream brands[2][5][7][6][8]Special order, 1-2 makers worldwide — Apium sells a POM-C ESD filament through its own shop and states its printers are the only ones able to process POM-C; no POM filament appears in the 3DJAKE or igo3d product sitemaps, at MatterHackers or at Printed Solid[4][9][10][11]
Spool sizes & diameters1.75 and 2.85 mm; 0.5, 0.75 and 1 kg spools[5][7][2]Not documented
Typical applicationsStiff, heat-resistant structural parts where a matte finish and lower cost beat carbon fibre[2][1]Gears, bushings, bearings, conveyor and food-machinery parts; Apium markets its POM-C ESD grade for semiconductor insulators, aerospace fasteners and sliding parts[3][4]
Printing Parameters
Nozzle temperature°C260–290 (Bambu Lab)[2]Not documented
Enclosure / chamber requirement1–5Enclosure required (passive) — Bambu Lab specifies a 45–60 °C chamber[2]Not documented
Recommended chamber temperature°C45–60 (Bambu Lab)[2]Not documented
Bed surface & adhesion aidPEI sheet with a glue stick, or a dedicated adhesive such as Magigoo[12][13]Not documented
Maximum volumetric flow (mm³/s; see test conditions)mm³/s10 at Bambu Lab's 130 mm/s cap on a 0.4 mm nozzle at 0.2 mm layer[2][14]Not documented
Bed-adhesion difficulty1–5Needs a specific surface plus adhesive[12]Not documented
Stringing / oozing tendency1–5Moderate — retraction tuning needed[13]Not documented
Overall printing difficulty1–5Expert / industrial hardware only[2][15]Not documented
Extruder requirement0.6 mm nozzle recommended by Bambu Lab; 0.4 and 0.8 also supported[2]Apium states that the adaptive heating system on its industrial machines is what makes POM-C printable, and that no other 3D printer can process it[4]
Hardware Wear & Reliability
Nozzle hardness required1–4Hardened steel required — Polymaker measures brass nozzle life at about 9 h on PA6-GF25 and recommends hardened steel or ruby[1]Not documented
Abrasiveness1–5Highly abrasive — standard GF composite; Polymaker puts brass nozzle life at roughly 9 h on PA6-GF25[1]Not documented
Nozzle clog risk1–5Very high — frequent jams without careful setup[15]Not documented
Heat-creep / jam sensitivity1–5Moderate — good heatbreak cooling needed[12]Not documented
Hotend requirementMay require an all-metal hot end (Simplify3D)[12]Not documented
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Very high (>2 %) — 2.56 % saturated at 25 °C / 55 % RH (Bambu Lab) and 3.33 % equilibrium (Polymaker Fiberon), the highest in the dataset[2][1]Low (0.1-0.3 %) — extruded POM-C stock takes up 0.18 % in 24 h and 0.80 % at saturation (ASTM D570)[3]
Equilibrium moisture content at ~50 % RH%2.56 saturated at 25 °C / 55 % RH (Bambu Lab); 3.33 equilibrium (Polymaker Fiberon PA6-GF25)[2][1]Not documented
Drying temperature & time80 °C for 8–12 h (Bambu Lab)[2]Not documented
Symptoms when wetPopping and cracking during extrusion, then hard-to-diagnose defects[16]Not documented
Effect of moisture on strengthPolymaker publishes dry and wet printed blocks for PA6-GF25 itself: at 4.57 % moisture tensile falls 80.1 → 40.2 MPa and modulus 5357 → 1794 MPa, while notched Charpy rises 10.0 → 28.0 kJ/m²[1][16]Not documented
Storage requirementSealed below 20 % RH with desiccant[15]Not documented
Hydrolysis at melt temperaturePolymaker specifies an 80–100 °C dry and storage below 20 % RH; no molecular-weight loss figure is published, and the wet data it does publish is conditioning rather than melt hydrolysis[17][18]Not documented
Mechanical Properties
Tensile strength (XY)MPa75 ± 6 (Bambu Lab) and 80.1 ± 1.8 (Polymaker Fiberon, dry/annealed) printed XY, ISO 527; Fiberon falls to 40.2 ± 2.1 conditioned to 4.57 % moisture. Stratasys FDM PA6/66-GF30-FR gives 60.2-61.1 at break and 61.7-62.3 at yield printed XZ (ASTM D638)[2][1][19]66.9 at break and 64.1 at yield (extruded POM-C stock, ASTM D638; converted from 9700 and 9300 psi)[3]
Young's modulusMPa2850 ± 260 (Bambu Lab) and 5357 ± 211 (Polymaker Fiberon, dry) printed XY, ISO 527; Fiberon falls to 1794 ± 84 conditioned. Stratasys FDM PA6/66-GF30-FR gives 5600-5830 printed XZ against 3050-3140 in ZX (ASTM D638)[2][1][19]2275 (extruded POM-C stock, ASTM D638; converted from 330,000 psi)[3]
Elongation at break%2.4 ± 0.2 dry (Polymaker Fiberon) to 3.9 ± 0.8 (Bambu Lab) printed XY, ISO 527; the Fiberon grade rises to 4.2 ± 0.7 conditioned[2][1]40 at break and 9 at yield (extruded POM-C stock, ASTM D638)[3]
Flexural strengthMPaNot documented89.6 (extruded POM-C stock, ASTM D790; converted from 13,000 psi)[3]
Flexural modulusMPa3670 ± 140 printed XY, ISO 178 (Bambu Lab)[2]2758 (extruded POM-C stock, ASTM D790; converted from 400,000 psi)[3]
Charpy impact, notchedkJ/m²10.0 ± 0.7 printed XY dry and 28.0 ± 1.0 conditioned, ISO 179 notched (Polymaker Fiberon); Bambu Lab 7.2 ± 2.3[1][2]Not documented
Other impact dataCharpy unnotched 27.2 ± 2.2 printed XY (Bambu Lab, ISO 179). Stratasys FDM PA6/66-GF30-FR gives Izod notched 74.6-77.1 J/m printed XZ against 17.2-22.1 in ZX (ASTM D256)[2][19]Izod 53 J/m on extruded POM-C stock, converted from 1.0 ft-lb/in[3]
Layer adhesion / Z tensileMPa27 ± 5 (Bambu Lab) and 60.7 ± 1.1 (Polymaker Fiberon, dry) printed Z, ISO 527 — the two makers differ by more than a factor of two; Fiberon falls to 26.3 ± 1.5 conditioned. Stratasys FDM PA6/66-GF30-FR gives 23.7-24.4 at break printed ZX (ASTM D638)[2][1][19]Not documented
Brittleness1–5Brittle — snaps with little warning; elongation at break 2.4 % in XY[1]Tough — absorbs impact, yields before breaking; extruded stock elongates 40 % before failing. No printed figure is published[3]
Hardness (scale-specific)Shore A / Shore D / RockwellRockwell M88 / R117 on extruded PA66-GF30 stock (ASTM D785)[20]Rockwell 86 (and R120) — the source names only the R scale on extruded POM-C stock (ASTM D785)[3]
Creep resistance / sustained load1–5Good. Ensinger lists high creep resistance as a headline property of extruded PA66-GF30 stock; the rating is held below Excellent because equilibrium moisture uptake of 3.33 % softens the matrix in service[20][1]Not documented
Fatigue / repeated-flex resistance1–5Good. Ensinger lists high fatigue strength as a headline property of extruded PA66-GF30 stock[20]Not documented
Elasticity / flexibility1–5Rigid[2]Not documented
Z strength as % of XY%36 (Bambu Lab) to 76 (Polymaker Fiberon), printed; Stratasys FDM PA6/66-GF30-FR gives 39-41 (ZX against XZ tensile at break, ASTM D638)[2][1][19]Not documented
Wear resistance & frictionNot documentedWear factor 65e-10 in3*min/(ft*lb*h) and a dynamic coefficient of friction of 0.21 at 40 psi and 50 fpm (ASTM D3702, extruded stock) — the properties that make acetal the default gear and bushing plastic; Apium lists good sliding properties as the reason for its grade[3][4]
Thermal Properties
HDT at 0.45 MPa°C182 (Bambu Lab) and 191 (Polymaker Fiberon), ISO 75 at 0.45 MPa. Stratasys FDM PA6/66-GF30-FR gives 161 printed XY and 185 XZ (ASTM D648 at 66 psi)[2][1][19]158 (extruded POM-C stock, ASTM D648 at 66 psi; converted from 316 °F)[3]
HDT at 1.8 MPa°C157 (Polymaker Fiberon) and 158 (Bambu Lab), ISO 75 at 1.8 MPa[2][1]110 (extruded POM-C stock, ASTM D648 at 264 psi; converted from 230 °F)[3]
Glass transition (Tg)°C67 (Bambu Lab) and 70.4 (Polymaker Fiberon), DSC; Stratasys measures 51.5 on FDM PA6/66-GF30-FR (ASTM D7426)[2][1][19]Not documented
Melting point / Vicat°C214.5 (Polymaker Fiberon) and 219 (Bambu Lab) melting, DSC; Vicat 210–212 (ISO 306)[2][1]165 melting (extruded POM-C stock; converted from 329 °F)[3]
Continuous service temperature°CNot documented91 long term and 141 intermittent (extruded POM-C stock; converted from 195 °F and 285 °F)[3]
Thermal expansion (CTE)µm/m·K48.6 on extruded PA66-GF30 stock (ASTM D696; source states 2.7e-5 in/in/°F). Stratasys measures much higher on printed FDM PA6/66-GF30-FR — 95.4 over -20 to 5 °C and 214 over 25 to 80 °C in XY (ASTM E831)[20][19]84.6 (extruded POM-C stock, ASTM D696; source states 4.7e-5 in/in/°F)[3]
Flammability / UL 94Flammable; no UL 94 rating published for the grades surveyed[17]UL 94 HB on extruded POM-C stock[3]
Environment & Chemical
UV resistance1–5Months outdoors before embrittlement — unstabilised polyamide yellows under UV[13]Not documented
Chemical resistanceWithstands oils, fuels and alkalis[13]Good chemical resistance, particularly to bases; Apium lists resistance to bases as a headline property[3][4]
Water / humidity resistance in service1–5Absorbs water, properties shift[16]Good — minor absorption; 0.80 % water at saturation (ASTM D570, extruded stock)[3]
Food contactNot food-contact certified as filament[13]Not documented
Biodegradability / compostabilityNot biodegradable[13]Not documented
RecyclabilityNot accepted in household plastic collection[13]Not documented
Electrical & ESD propertiesSurface resistivity above 10¹² ohm — insulating (Polymaker Fiberon, ANSI/ESD S11.11)[1]Volume resistance 1e14 ohm-cm, dielectric strength 500 V/mil and dielectric constant 3.7 at 60 Hz on extruded stock (ASTM D257, D149, D150); Apium's filament grade adds antistatic agents[3][4]
Health & Safety
Fume toxicity1–5Moderate — measurable VOCs and UFPs, ventilation advised[21]Not documented
VOC emission rateµg/minUp to 180 caprolactam, the dominant VOC from nylon and the largest single-VOC rate in the study[21]Not documented
Ultrafine-particle emission rateparticles/min≈2 × 10⁸ median for nylon — low for particles despite the highest VOC mass measured[21]Not documented
Hazardous species emittedCaprolactam, at up to 180 µg/min from nylon filament[21]Not documented
Ventilation / filtration requirement1–5Ventilated room or enclosure recommended[21]Not documented
Dust & fibre handling hazardGlass fibre is bound in the matrix; avoid inhaling sanding dust[1]Not documented
Post-Processing
Sanding & machiningSands poorly — gums rather than powders[12]Easy to machine — Ensinger lists machinability as a headline property of POM-C stock[3]
Gluing & solvent weldingCyanoacrylate; no common solvent welds polyamide[12]Not documented
Vapour / chemical smoothingNo practical vapour smoothing[12]Not documented
Solvents & Solubility
Soluble inFormic acid, phenol, m-cresol and hexafluoroisopropanol dissolve the matrix at 23 °C, leaving the fibre; laboratory reagents.[22]Hexafluoroisopropanol dissolves it at room temperature; NMP and DMF only when hot. Laboratory reagents.[23]
Softened or crazed byZinc chloride solutions stress-crack the nylon matrix, alcoholic calcium chloride dissolves it, mineral acids attack it.[22]Acids, oxidants, halogens and hot concentrated zinc chloride attack it; alcohols, ketones and esters do not.[23][24]
Solvent welding & smoothing agentNone — nylon's only solvents (formic acid, phenol, HFIP) degrade the part, and the fibre blocks surface flow anyway.[22]None — no solvent softens POM below its melting point, which is why it is bolted or heat-welded rather than glued.[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. Fiberon PA6-GF25 Technical Data Sheet V1.1 Polymaker · 2024-12 · tds
  2. Bambu Filament Technical Data Sheet — PA6-GF Bambu Lab · 2026-08 · tds
  3. TECAFORM AH natural (POM-C) — stock shape properties Ensinger · 2026-08 · tds
  4. POM-C ESD 3D printing — material page Apium 3D Technologies · 2026-08 · doc
  5. Polymaker product catalogue Polymaker · 2026-08 · vendor
  6. SUNLU Nylon-6 Glass Fiber (PA6-GF) 3D Printer Filament 1 kg — product page SUNLU · 2026-08 · vendor
  7. 3DXTech product catalogue 3DXTech · 2026-08 · vendor
  8. YXPOLYER PA6-GF Black 1 kg — product page YXPOLYER · 2026-08 · vendor
  9. 3DJAKE product catalogue 3DJAKE · 2026-08 · vendor
  10. igo3d product sitemap (17452 product URLs) igo3d · 2026-08 · vendor
  11. Printed Solid product catalogue Printed Solid · 2026-08 · vendor
  12. Nylon — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  13. PA (Nylon) — material basics Polymaker Wiki · 2026-08 · doc
  14. Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
  15. Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
  16. Moisture Conditioning — effect on printed nylon properties Polymaker Wiki · 2026-08 · doc
  17. Fiberon PA6-CF20 Technical Data Sheet V1.1 Polymaker · 2024-12 · tds
  18. PolyMide CoPA Technical Data Sheet V5.4 (dry and wet status blocks) Polymaker · 2024-11 · tds
  19. FDM PA6/66-GF30-FR — Material Data Sheet Stratasys · 2026-07 · tds
  20. TECAMID 66 GF30 black (PA66-GF30) — stock shape properties Ensinger · 2026-08 · tds
  21. 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
  22. Ultramid Nylon Chemical Resistance guide (unmodified PA6 B27E and PA66 A27E) BASF · 2026-08 · tds
  23. Resistance of Ultramid, Ultraform and Ultradur to chemicals (TI-KTU/AS-28 e) BASF · 2000-10 · tds
  24. Chemical resistance — resistance of Ensinger plastics to chemicals (DIN 50 014, 23/50) Ensinger · 2026-08 · tds