Filament comparison
PEBA vs PP-GF
Compare printing settings, strength, heat resistance, dated prices and sources.
2 selected · all documented properties
| Property | PEBA (polyether block amide)FLEX | Glass-fibre PP (PP-GF)POLYOLEFIN |
|---|---|---|
| Market snapshot | ||
| Listing priceUSD/kg; dated snapshots | $60.99/kg median; $60.99–$60.99/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 | Polyether block amide: rigid polyamide and flexible polyether blocks.[1] | Polypropylene reinforced with chopped glass fibre[2][3] |
| Densityg/cm³ | 1.01 g/cm³ (GB/T 1033; eSUN manufacturer data)[1] | 1.12 (Prusament PP Glass Fiber, ISO 1183) — the glass lifts it above water[2] |
| Typical priceUSD/kg | Not documented | 1 kg-equivalent spools cluster near 49[4][5][6] |
| Price range across brandsUSD/kg | Not documented | 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[4][5][6] |
| Market availability1–5 | Not documented | Available from several mainstream brands[4][5][6] |
| Spool sizes & diameters | 1.75 mm diameter, 1 kg spool.[7] | 1.75 and 2.85 mm; 700 g, 850 g and 2.2 kg spools[4][5][6] |
| Typical applications | Manufacturer applications include footwear, sports equipment and cushioning.[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 | 230–260 °C; 240 °C recommended.[1] | 245 ± 10 (Prusament) — 25 °C below the carbon-fibre grade[2][8] |
| Bed temperature°C | 60–90 °C[1] | 95 ± 10 (Prusament)[2] |
| Enclosure / chamber requirement1–5 | Not documented | Enclosure recommended — Simplify3D lists an enclosure as a hardware requirement and Polymaker advises one below 70 °C ambient to stop warping and cracking[9][10] |
| Part cooling fan | 10–50% fan recommended; mechanical-test specimens used 50–100%.[1] | Off — Prusa runs 0 % except 100 % on bridges[2] |
| Bed surface & adhesion aid | PEI build plate[1] | Not documented |
| Maximum volumetric flow (mm³/s; see test conditions)mm³/s | 9 mm³/s maximum in eSUN spiral-vase test; mechanical specimens used 2 mm³/s. Linear recommendation 25–110 mm/s is a separate quantity.[1] | 4 at Prusa's 50 mm/s cap on a 0.4 mm nozzle at 0.2 mm layer[2][11] |
| Warping tendency1–5 | Not documented | High — enclosure needed for reliable large parts; Prusa recommends a brim[2] |
| Bed-adhesion difficulty1–5 | Not documented | Very difficult — special plates or slurry required[2] |
| Overall printing difficulty1–5 | Not documented | 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 | Not documented | Hardened steel required[2] |
| Abrasiveness1–5 | Not documented | Highly abrasive — standard GF composite[2] |
| Nozzle clog risk1–5 | Not documented | Moderate — needs dry filament and a clean nozzle; Prusa lists higher risk of nozzle clogging for glass-filled composites[12] |
| Moisture Behaviour | ||
| Moisture absorption (hygroscopicity)1–5 | Not documented | 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][8] |
| 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] |
| Drying temperature & time | 70–75 °C for 6–8 h; re-dry after receiving or extended exposure.[1] | Not documented |
| Effect of moisture on strength | Not documented | Not applicable in practice at 0.11 % equilibrium uptake[2] |
| Storage requirement | Not documented | No special storage needed[2] |
| Mechanical Properties | ||
| Tensile strength (XY)MPa | >16.5 MPa printed XY, GB/T 1040; manufacturer lower bound, not an exact measurement.[1] | 46.6 ± 1.3 filament tensile yield (Prusament, ISO 527) — more than double the carbon-fibre grade's 21[2][8] |
| Elongation at break% | >520% printed XY, GB/T 1040; manufacturer lower bound.[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 | 7.5 MPa printed Z, GB/T 1040 (manufacturer test)[1] | Not documented |
| Brittleness1–5 | Not documented | Moderate[2] |
| Hardness (scale-specific)Shore A / Shore D / Rockwell | 90 Shore A nominal grade designation; do not compare numerically with Shore D or Rockwell.[7] | Rockwell R102 (and M95) on extruded unfilled PP stock (ASTM D785); no figure is published for a glass-fibre PP filament[13] |
| Elasticity / flexibility1–5 | Not documented | Rigid[2] |
| Thermal Properties | ||
| HDT at 0.45 MPa°C | Not documented | 138.3 (ISO 75, 0.45 MPa)[2] |
| HDT at 1.8 MPa°C | Not documented | 112.6 (ISO 75, 1.8 MPa)[2] |
| Melting point / Vicat°C | 110 °C Vicat softening (GB/T 1633, 120 °C/h, 10 N); not HDT or a continuous-use rating.[1] | Not documented |
| Environment & Chemical | ||
| Chemical resistance | Not documented | Excellent against acids, alkalis and most solvents[10] |
| Water / humidity resistance in service1–5 | Not documented | Excellent — essentially unaffected[2] |
| Health & Safety | ||
| Fume toxicity1–5 | Not documented | 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[14] |
| Ventilation / filtration requirement1–5 | Not documented | Open a window / occasional ventilation. Inferred — no polyolefin was measured in the chamber study[14] |
| Dust & fibre handling hazard | Not documented | Glass fibre is bound in the matrix; avoid inhaling sanding dust[2] |
| Solvents & Solubility | ||
| Soluble in | Not documented | None at room temperature; chloroform dissolves the matrix at 60 °C and xylene at about 118 °C, leaving the fibre.[15][16] |
| Softened or crazed by | Not documented | Xylene, decalin, CCl4 and chlorobenzene are heavily absorbed at 20 °C; oleum, chlorosulphonic acid and bromine destroy it.[15] |
| Solvent welding & smoothing agent | Not documented | None — nothing softens PP at room temperature, so joints have to be welded thermally rather than chemically.[15] |
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
- eSUN PEBA-90A Technical Data Sheet v1.0 (Aug 2025), checked 2026-10-17 eSUN · 2025-08 · 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
- 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
- eSUN PEBA-90A official product page: 1 kg price and product identity eSUN · 2026-10-17 · vendor
- Prusament PP Carbon Fiber Technical Datasheet v1.0 Prusa Polymers · 2024-11 · tds
- Polypropylene — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
- PP — material basics Polymaker Wiki · 2026-08 · doc
- Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
- Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
- TECAFINE PP natural — stock shape properties Ensinger · 2026-08 · tds
- 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
- 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