3D Printing Info

Filament comparison

PP-GF vs PVDF

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

Glass-fibre PP (PP-GF) guidePVDF guide

2 selected · all documented properties

Open these two in the interactive comparisonMore PP-GF comparisonsMore PVDF comparisons
PP-GF vs PVDF — documented properties and sources
PropertyGlass-fibre PP (PP-GF)POLYOLEFINPVDFENGINEERING
Market snapshot
Listing priceUSD/kg; dated snapshots$49.09/kg median; $46.27–$86.01/kg across 3 dated product listings$250.67/kg median; $250.67–$250.67/kg across 1 dated product listings
Identity & Market
Base polymer / chemistryPolypropylene reinforced with chopped glass fibre[1][2]Polyvinylidene fluoride — a semi-crystalline fluoropolymer[3][4]
Densityg/cm³1.12 (Prusament PP Glass Fiber, ISO 1183) — the glass lifts it above water[1]1.71 (ISO 1183) — the densest unfilled filament in the dataset[3]
Typical priceUSD/kg1 kg-equivalent spools cluster near 49[5][6][7]1 kg-equivalent spools cluster near 251[8]
Price range across brandsUSD/kg46-86 across brands; BCN3D PP GF30 46 at 700 g, BASF Ultrafuse PP GF30 49 at 2.2 kg, Prusament PP Glass Fiber 86 at 850 g[5][6][7]251 at 3DXTech's 750 g pricing — the most expensive material in the whole dataset[8]
Market availability1–5Available from several mainstream brands[5][6][7]Special order, 1–2 makers worldwide[8][9]
Spool sizes & diameters1.75 and 2.85 mm; 700 g, 850 g and 2.2 kg spools[5][6][7]1.75 and 2.85 mm; 750 g spools[8]
Typical applicationsStiff, chemically resistant parts where PP-CF's cost or conductivity is unwanted[2]Chemical-plant fittings, semiconductor handling and parts needing outstanding UV and chemical resistance[3]
Diameter tolerance± mm±0.04 (Prusament)[1]Not documented
Printing Parameters
Nozzle temperature°C245 ± 10 (Prusament) — 25 °C below the carbon-fibre grade[1][10]Not documented
Bed temperature°C95 ± 10 (Prusament)[1]70–110 (3DXTech FluorX)[3]
Enclosure / chamber requirement1–5Enclosure recommended — Simplify3D lists an enclosure as a hardware requirement and Polymaker advises one below 70 °C ambient to stop warping and cracking[11][12]Enclosure required (passive)[3]
Part cooling fanOff — Prusa runs 0 % except 100 % on bridges[1]Not documented
Maximum volumetric flow (mm³/s; see test conditions)mm³/s4 at Prusa's 50 mm/s cap on a 0.4 mm nozzle at 0.2 mm layer[1][13]Not documented
Warping tendency1–5High — enclosure needed for reliable large parts; Prusa recommends a brim[1]High — enclosure needed for reliable large parts[3]
Bed-adhesion difficulty1–5Very difficult — special plates or slurry required[1]Not documented
Overall printing difficulty1–5Advanced — enclosure, hardware upgrades, tuning; hardened nozzle mandatory[1]Expert / industrial hardware only[3][4]
Extruder requirementPrusa states a hardened nozzle is necessary and recommends a brim[1]Not documented
Hardware Wear & Reliability
Nozzle hardness required1–4Hardened steel required[1]Brass fine indefinitely for unfilled grades[3]
Abrasiveness1–5Highly abrasive — standard GF composite[1]Non-abrasive when unfilled[3]
Nozzle clog risk1–5Moderate — needs dry filament and a clean nozzle; Prusa lists higher risk of nozzle clogging for glass-filled composites[14]Low — 3DXTech lists no special nozzle concerns, no minimum layer height and states drying is not required[9]
Other hardware wearNot documentedHydrogen fluoride released on overheating is extremely corrosive and will attack hotend and enclosure metalwork as well as people[4]
Moisture Behaviour
Moisture absorption (hygroscopicity)1–5Low (0.1–0.3 %) — 0.11 % at both 24 h and 7 days, higher than the carbon-fibre grade's 0.04 % but still very low[1][10]Negligible (<0.1 % EMC) — fluoropolymers are essentially non-hygroscopic[3]
Equilibrium moisture content at ~50 % RH%0.11 after 24 h and 0.11 after 7 days at 24 °C / 22 % RH (Prusa Polymers)[1]Not documented
Effect of moisture on strengthNot applicable in practice at 0.11 % equilibrium uptake[1]Not applicable in practice — 3DXTech states drying is not required for PVDF, so there is no moisture-driven strength loss to measure[9]
Storage requirementNo special storage needed[1]Not documented
Mechanical Properties
Tensile strength (XY)MPa46.6 ± 1.3 filament tensile yield (Prusament, ISO 527) — more than double the carbon-fibre grade's 21[1][10]51 at break (printed XY, ISO 527)[3]
Young's modulusMPaNot documented2450 (printed XY, ISO 527)[3]
Elongation at break%Not documented25 at break (printed XY, ISO 527)[3]
Flexural strengthMPaNot documented50 (printed XY, ISO 178)[3]
Flexural modulusMPaNot documented1800 (printed XY, ISO 178)[3]
Charpy impact, notchedkJ/m²7.9 ± 0.4 printed horizontal and 9.9 ± 0.8 printed vertical XZ (ISO 179-1, notched)[1]Not documented
Other impact dataNot documentedIzod 133 J/m on extruded PVDF stock, converted from 2.49 ft-lb/in (ASTM D256)[15]
Brittleness1–5Moderate[1]Tough — absorbs impact, yields before breaking[3]
Hardness (scale-specific)Shore A / Shore D / RockwellRockwell R102 (and M95) on extruded unfilled PP stock (ASTM D785); no figure is published for a glass-fibre PP filament[16]Rockwell M79 on extruded PVDF stock (ASTM D785)[15]
Elasticity / flexibility1–5Rigid[1]Slightly flexible in thin sections[3]
Thermal Properties
HDT at 0.45 MPa°C138.3 (ISO 75, 0.45 MPa)[1]149 on extruded PVDF stock (ASTM D648 at 66 psi; converted from 300 °F)[15]
HDT at 1.8 MPa°C112.6 (ISO 75, 1.8 MPa)[1]113 on extruded PVDF stock (ASTM D648 at 264 psi; converted from 235 °F)[15]
Melting point / Vicat°CNot documented170 melting (ISO 11357)[3]
Continuous service temperature°CNot documented149 long term and short term on extruded PVDF stock (converted from 300 °F)[15]
Thermal expansion (CTE)µm/m·KNot documented127.8 (extruded PVDF stock, ASTM D696; source states 7.1e-5 in/in/°F) — the highest thermal expansion of any engineering polymer in this dataset[15]
Flammability / UL 94Not documentedUL 94 V-0 on extruded PVDF stock; Ensinger lists inherent flame resistance[15]
Environment & Chemical
UV resistance1–5Not documentedExcellent — designed for permanent outdoor use; Ensinger lists good UV and weather resistance and high gamma radiation resistance for PVDF stock[3][15]
Chemical resistanceExcellent against acids, alkalis and most solvents[12]Outstanding — resistant to most acids, solvents and oxidising agents, which is the reason to use it[3]
Water / humidity resistance in service1–5Excellent — essentially unaffected[1]Excellent — essentially unaffected[3]
Health & Safety
Fume toxicity1–5Low hazard — minimal VOC and particle emission. Inferred: no polyolefin was among the nine filaments in the Azimi chamber study, so this is a family-level judgement rather than a measurement[17]Very high — toxic decomposition products; local exhaust mandatory. Above 315 °C thermal decomposition yields hydrofluoric acid, hydrogen cyanide and carbon monoxide[4]
Hazardous species emittedNot documentedAbove 315 °C: hydrofluoric acid, hydrogen cyanide, phenols, carbon monoxide, carbon dioxide and dense smoke. HF is extremely corrosive, its skin burns may not be immediately visible or painful, and exposure can be fatal by skin absorption, inhalation or ingestion[4]
Ventilation / filtration requirement1–5Open a window / occasional ventilation. Inferred — no polyolefin was measured in the chamber study[17]Local exhaust to outside / fume hood — the SDS states local exhaust is preferred[4]
Dust & fibre handling hazardGlass fibre is bound in the matrix; avoid inhaling sanding dust[1]Molten polymer causes thermal burns and must not be pulled off the skin. If HF is detected during a decomposition event, cut the heat but keep the extraction running, ventilate, and clear non-essential people from the area[4]
Post-Processing
Dimensional accuracy & detailNot documentedThe processing window sits well below the 315 °C decomposition threshold, so nozzle temperature must be controlled rather than raised to chase flow[3][4]
Solvents & Solubility
Soluble inNone at room temperature; chloroform dissolves the matrix at 60 °C and xylene at about 118 °C, leaving the fibre.[18][19]THF, MEK, DMF, DMAc, NMP, DMSO and trimethyl phosphate dissolve 5–10 wt% at ambient — Arkema's active solvents, all lab reagents.[20]
Softened or crazed byXylene, decalin, CCl4 and chlorobenzene are heavily absorbed at 20 °C; oleum, chlorosulphonic acid and bromine destroy it.[18]Acetone, MIBK, cyclohexanone, butyl acetate and glycol ethers swell it; alkalis above pH 12 attack the homopolymer.[20][21]
Solvent welding & smoothing agentNone — nothing softens PP at room temperature, so joints have to be welded thermally rather than chemically.[18]None for the workshop — the active solvents (NMP, DMAc, DMF) are laboratory reagents used for casting membranes, not joints.[20]

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. Prusament PP Glass Fiber Technical Datasheet v1.0 Prusa Polymers · 2024-11 · tds
  2. Prusament PP Glass Fiber — material page Prusa Polymers · 2026-08 · doc
  3. FluorX PVDF Technical Data Sheet v3 3DXTech · 2026-08 · tds
  4. FluorX PVDF Safety Data Sheet v1.1 3DXTech · 2026-08 · msds
  5. BASF Ultrafuse PP GF30 Black 2.85 mm 2.200 g igo3d · 2026-08 · vendor
  6. BCN3D PP GF30 Black 2.85 mm 700 g igo3d · 2026-08 · vendor
  7. Prusa Prusament PP Glass Fiber Natural (NFC), 1.75 mm / 850 g 3DJAKE · 2026-08 · vendor
  8. 3DXTech product catalogue 3DXTech · 2026-08 · vendor
  9. FluorX PVDF — product page 3DXTech · 2026-08 · vendor
  10. Prusament PP Carbon Fiber Technical Datasheet v1.0 Prusa Polymers · 2024-11 · tds
  11. Polypropylene — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
  12. PP — material basics Polymaker Wiki · 2026-08 · doc
  13. Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
  14. Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
  15. TECAFLON PVDF natural — stock shape properties Ensinger · 2026-08 · tds
  16. TECAFINE PP natural — stock shape properties Ensinger · 2026-08 · tds
  17. 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
  18. Pro-fax and Moplen polypropylene — Chemical Resistance Guide (20, 60 and 100 °C) LyondellBasell · 2026-08 · tds
  19. US 5,278,282 Polymer recycling by selective dissolution — xylene dissolution temperatures Nauman & Lynch, Rensselaer Polytechnic Institute · 1994-01 · paper
  20. Kynar PVDF — Design properties: solubility and irradiation (active and latent solvents) Arkema · 2026-08 · tds
  21. Kynar PVDF resin — chemical and fuel resistance Arkema · 2026-08 · tds