Filament comparison
PC-ESD vs PP-GF
Compare printing settings, strength, heat resistance, dated prices and sources.
2 selected · all documented properties
| Property | ESD-safe PCPC | Glass-fibre PP (PP-GF)POLYOLEFIN |
|---|---|---|
| Market snapshot | ||
| Listing priceUSD/kg; dated snapshots | $180.00/kg median; $180.00–$180.00/kg across 1 dated product listings | $49.09/kg median; $46.27–$86.01/kg across 3 dated product listings |
| Identity & Market | ||
| Base polymer / chemistry | Polycarbonate compounded with a conductive filler for static-dissipative parts[1] | Polypropylene reinforced with chopped glass fibre[2][3] |
| Densityg/cm³ | 1.24 (ISO 1183, 3DXTech); Stratasys specific gravity 1.195 (ASTM D792)[1][4] | 1.12 (Prusament PP Glass Fiber, ISO 1183) — the glass lifts it above water[2] |
| Typical priceUSD/kg | 1 kg-equivalent spools cluster near 180[5] | 1 kg-equivalent spools cluster near 49[6][7][8] |
| Price range across brandsUSD/kg | 180 at 3DXTech's 750 g pricing — the most expensive material in this group[5] | 46-86 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[6][7][8] |
| Market availability1–5 | Special order, 1–2 makers worldwide[5] | Available from several mainstream brands[6][7][8] |
| Spool sizes & diameters | 1.75 and 2.85 mm; 750 g spools plus Stratasys-compatible cartridges[5] | 1.75 and 2.85 mm; 700 g, 850 g and 2.2 kg spools[6][7][8] |
| Typical applications | Electronics fixtures and trays that need PC heat resistance and static dissipation together[1] | Stiff, chemically resistant parts where PP-CF's cost or conductivity is unwanted[3] |
| Diameter tolerance± mm | Not documented | ±0.04 (Prusament)[2] |
| Printing Parameters | ||
| Nozzle temperature°C | Not documented | 245 ± 10 (Prusament) — 25 °C below the carbon-fibre grade[2][9] |
| Bed temperature°C | Not documented | 95 ± 10 (Prusament)[2] |
| Enclosure / chamber requirement1–5 | Enclosure required (passive)[10][11] | Enclosure recommended — Simplify3D lists an enclosure as a hardware requirement and Polymaker advises one below 70 °C ambient to stop warping and cracking[12][13] |
| Part cooling fan | Not documented | Off — Prusa runs 0 % except 100 % on bridges[2] |
| Bed surface & adhesion aid | PEI with a glue stick or a commercial adhesive[14] | Not documented |
| Maximum volumetric flow (mm³/s; see test conditions)mm³/s | Not documented | 4 at Prusa's 50 mm/s cap on a 0.4 mm nozzle at 0.2 mm layer[2][15] |
| Warping tendency1–5 | Severe — heated chamber needed[10][11] | High — enclosure needed for reliable large parts; Prusa recommends a brim[2] |
| Bed-adhesion difficulty1–5 | Needs a specific surface plus adhesive[14][16] | Very difficult — special plates or slurry required[2] |
| Stringing / oozing tendency1–5 | Moderate — retraction tuning needed; Polymaker flags stringing as a common PC problem[16] | Not documented |
| Overall printing difficulty1–5 | Advanced — enclosure, hardware upgrades, tuning[10] | Advanced — enclosure, hardware upgrades, tuning; hardened nozzle mandatory[2] |
| Extruder requirement | Not documented | Prusa states a hardened nozzle is necessary and recommends a brim[2] |
| Hardware Wear & Reliability | ||
| Nozzle hardness required1–4 | Hardened steel required[1] | Hardened steel required[2] |
| Abrasiveness1–5 | Moderately abrasive — conductive carbon filler[1] | Highly abrasive — standard GF composite[2] |
| Nozzle clog risk1–5 | Moderate — needs dry filament and a clean nozzle; 3DXTech lists no special nozzle concerns but a 120 °C pre-dry[17] | Moderate — needs dry filament and a clean nozzle; Prusa lists higher risk of nozzle clogging for glass-filled composites[18] |
| Heat-creep / jam sensitivity1–5 | Slightly sensitive[14] | Not documented |
| Hotend requirement | All-metal hot end required (Simplify3D)[14] | Not documented |
| Moisture Behaviour | ||
| Moisture absorption (hygroscopicity)1–5 | Low (0.1–0.3 %) — the PC matrix takes up 0.15–0.25 % and 3DXTech specifies a 120 °C, 4 h pre-dry[19][20][17] | Low (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[2][9] |
| Equilibrium moisture content at ~50 % RH% | Not documented | 0.11 after 24 h and 0.11 after 7 days at 24 °C / 22 % RH (Prusa Polymers)[2] |
| Symptoms when wet | Bubbling and popping at the nozzle, stringing and a rough surface[21] | Not documented |
| Effect of moisture on strength | No dry-versus-conditioned figures are published. Polymaker calls PC highly hygroscopic and requires a 70–80 °C dry for 6–8 h; run wet, the loss shows as surface defects and poor layer adhesion[16][21] | Not applicable in practice at 0.11 % equilibrium uptake[2] |
| Storage requirement | Airtight containers with desiccant to prevent reabsorption[16] | No special storage needed[2] |
| Mechanical Properties | ||
| Tensile strength (XY)MPa | 68 at break (printed XY, ISO 527, 3DXTech) — above the 58 of 3DXTech's unfilled ezPC; Stratasys prints 47.6-49.4 at yield in XZ (ASTM D638)[1][22][4] | 46.6 ± 1.3 filament tensile yield (Prusament, ISO 527) — more than double the carbon-fibre grade's 21[2][9] |
| Young's modulusMPa | 2300 (printed XY, ISO 527); Stratasys prints 1960 in XZ and 1810-1910 in ZX (ASTM D638)[1][4] | Not documented |
| Elongation at break% | 6 at break (printed XY, ISO 527), against 14 for the unfilled grade[1][22] | Not documented |
| Flexural strengthMPa | 95 (printed XY, ISO 178); Stratasys prints 82.6-83.2 at break in XZ against 46.3-49.5 in ZX (ASTM D790)[1][4] | Not documented |
| Flexural modulusMPa | 2310 (printed XY, ISO 178)[1] | Not documented |
| Charpy impact, notchedkJ/m² | Not documented | 7.9 ± 0.4 printed horizontal and 9.9 ± 0.8 printed vertical XZ (ISO 179-1, notched)[2] |
| Layer adhesion / Z tensileMPa | 32.5-37.9 at yield printed ZX (Stratasys, ASTM D638 on the Fortus 450mc and F900)[4] | Not documented |
| Brittleness1–5 | Moderate[1] | Moderate[2] |
| Hardness (scale-specific)Shore A / Shore D / Rockwell | Rockwell 70 (118) — the source does not name the scales and Shore D 79 on extruded unfilled PC stock (ASTM D785, D2240); no figure is published for an ESD grade[23] | Rockwell R102 (and M95) on extruded unfilled PP stock (ASTM D785); no figure is published for a glass-fibre PP filament[24] |
| Creep resistance / sustained load1–5 | Excellent — holds load for years. Moulded unfilled PC was still running unbroken under 41 MPa tensile creep at room temperature when the test was stopped, and the conductive filler leaves the glass transition unchanged at 142 °C, so the creep mechanism is polycarbonate's[25][4] | Not documented |
| Elasticity / flexibility1–5 | Rigid[1] | Rigid[2] |
| Z strength as % of XY% | 68-77 (Stratasys ZX against XZ tensile yield, ASTM D638)[4] | Not documented |
| Thermal Properties | ||
| HDT at 0.45 MPa°C | 143-146 printed in XY, XZ and ZX (Stratasys, ASTM D648 Method B at 66 psi); 135 moulded[4] | 138.3 (ISO 75, 0.45 MPa)[2] |
| HDT at 1.8 MPa°C | 140-144 printed in XY, XZ and ZX (Stratasys, ASTM D648 Method B at 264 psi); 124 moulded[4] | 112.6 (ISO 75, 1.8 MPa)[2] |
| Glass transition (Tg)°C | 143 (DSC, 3DXTech) and 142 (Stratasys, ASTM D7426)[1][4] | Not documented |
| Continuous service temperature°C | 113 — Prusa publishes this as the temperature resistance of Prusament PC Blend[20] | Not documented |
| Thermal expansion (CTE)µm/m·K | 68.4 on extruded unfilled PC stock (ASTM D696; source states 3.8e-5 in/in/°F); no figure is published for a conductive-filled grade[23] | Not documented |
| Environment & Chemical | ||
| Chemical resistance | Withstands oils, solvents and fuels; Polymaker rates it good against weak acids[16] | Excellent against acids, alkalis and most solvents[13] |
| Water / humidity resistance in service1–5 | Not documented | Excellent — essentially unaffected[2] |
| Food contact | Bisphenol-A polycarbonate is not offered as food-contact filament[16] | Not documented |
| Biodegradability / compostability | Not biodegradable[16] | Not documented |
| Recyclability | Mechanically recyclable but not accepted in household plastic collection[16] | Not documented |
| Electrical & ESD properties | Surface resistance 10⁷–10⁹ ohm/sq, the static-dissipative band (ASTM D257), against above 10¹³ for unfilled ezPC[1][22] | Not documented |
| Health & Safety | ||
| Fume toxicity1–5 | Moderate — measurable VOCs and UFPs, ventilation advised[26] | Low 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[26] |
| Ultrafine-particle emission rateparticles/min | ≈4 × 10¹⁰ median — the highest ultrafine-particle rate of the nine filaments in the chamber study, above every ABS tested[26] | Not documented |
| Ventilation / filtration requirement1–5 | Ventilated room or enclosure recommended[26][10] | Open a window / occasional ventilation. Inferred — no polyolefin was measured in the chamber study[26] |
| Dust & fibre handling hazard | Conductive carbon filler is bound in the matrix; avoid inhaling sanding dust[1] | Glass fibre is bound in the matrix; avoid inhaling sanding dust[2] |
| Post-Processing | ||
| Sanding & machining | Sands and machines well; the toughness means it cuts rather than chips[14] | Not documented |
| Gluing & solvent welding | Cyanoacrylate; dichloromethane solvent-welds PC but is a laboratory reagent[14] | Not documented |
| Vapour / chemical smoothing | No practical vapour smoothing[14] | Not documented |
| Support material pairing | Prints its own supports; 3DXTech sells a dedicated PC break-away support[14] | Not documented |
| Solvents & Solubility | ||
| Soluble in | Dichloromethane, chloroform, DMF and dioxane dissolve it outright (Covestro, 6 days at 23 °C). Laboratory reagents.[27] | None at room temperature; chloroform dissolves the matrix at 60 °C and xylene at about 118 °C, leaving the fibre.[28][29] |
| Softened or crazed by | Methanol, butyl acetate, ether, 1 % NaOH and phthalate plasticisers stress-crack it; acetone, MEK and xylene swell it.[27] | Xylene, decalin, CCl4 and chlorobenzene are heavily absorbed at 20 °C; oleum, chlorosulphonic acid and bromine destroy it.[28] |
| Solvent welding & smoothing agent | Dichloromethane cement welds PC — 16.5 MPa lap shear at one week (IPS Weld-On 3). A controlled carcinogen.[30] | None — nothing softens PP at room temperature, so joints have to be welded thermally rather than chemically.[28] |
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
- 3DXSTAT ESD-PC Technical Data Sheet 3DXTech · 2026-08 · tds
- Prusament PP Glass Fiber Technical Datasheet v1.0 Prusa Polymers · 2024-11 · tds
- Prusament PP Glass Fiber — material page Prusa Polymers · 2026-08 · doc
- PC-ESD — FDM Material Data Sheet Stratasys · 2024-10 · tds
- 3DXTech product catalogue 3DXTech · 2026-08 · vendor
- BASF Ultrafuse PP GF30 Black 2.85 mm 2.200 g igo3d · 2026-08 · vendor
- BCN3D PP GF30 Black 2.85 mm 700 g igo3d · 2026-08 · vendor
- Prusa Prusament PP Glass Fiber Natural (NFC), 1.75 mm / 850 g 3DJAKE · 2026-08 · vendor
- Prusament PP Carbon Fiber Technical Datasheet v1.0 Prusa Polymers · 2024-11 · tds
- ABS / ASA / PC Usage Guide Bambu Lab Wiki · 2026-08 · doc
- PolyLite PC Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
- Polypropylene — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
- PP — material basics Polymaker Wiki · 2026-08 · doc
- Polycarbonate — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
- Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
- PC — material basics Polymaker Wiki · 2026-08 · doc
- 3DXSTAT ESD-PC — product page (print recommendations) 3DXTech · 2026-08 · doc
- Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
- Bambu Filament Technical Data Sheet V2.0 — PC Bambu Lab · 2026-08 · tds
- Prusament PC Blend Technical Datasheet v1.1 Prusa Polymers · 2022-02 · tds
- Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
- ezPC Polycarbonate Technical Data Sheet 3DXTech · 2026-08 · tds
- TECANAT natural (PC) — stock shape properties Ensinger · 2026-08 · tds
- TECAFINE PP natural — stock shape properties Ensinger · 2026-08 · tds
- Experimental data for creep and dynamic mechanical properties of polycarbonate and polycarbonate/ABS Data in Brief 42:108264 · 2022-06 · paper
- 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
- Makrolon — The chemical resistance (Makrolon 2800, 6 days at 23 °C and 50 °C) Covestro · 2016-12 · tds
- Pro-fax and Moplen polypropylene — Chemical Resistance Guide (20, 60 and 100 °C) LyondellBasell · 2026-08 · tds
- US 5,278,282 Polymer recycling by selective dissolution — xylene dissolution temperatures Nauman & Lynch, Rensselaer Polytechnic Institute · 1994-01 · paper
- Weld-On 3 Acrylic Plastic Cement — technical data sheet (shipped as dichloromethane) IPS Corporation · 2002-07 · tds