Filament comparison
PETG-ESD vs TPE SEBS
Compare printing settings, strength, heat resistance, dated prices and sources.
2 selected · all documented properties
| Property | ESD-safe PETGPETG | TPE (SEBS)FLEX |
|---|---|---|
| Market snapshot | ||
| Listing priceUSD/kg; dated snapshots | $102.99/kg median; $65.98–$140.00/kg across 2 dated product listings | $98.25/kg median; $76.50–$120.00/kg across 2 dated product listings |
| Identity & Market | ||
| Base polymer / chemistry | PETG compounded with a conductive filler to bring surface resistivity into the static-dissipative range[1][2] | Styrene-ethylene-butadiene-styrene thermoplastic elastomer — a styrenic rubber, not a polyurethane[3] |
| Densityg/cm³ | 1.24 (Fiberon) and 1.28 (3DXTech), ISO 1183[1][2] | 1.044 printed part density (BASF Ultrafuse TPS 90A, ISO 1183-1) — the lightest elastomer here[3] |
| Typical priceUSD/kg | 1 kg-equivalent spools span 66–140; the middle of the market is about 103[4][5] | 1 kg-equivalent spools cluster near 77[6] |
| Price range across brandsUSD/kg | 66–140 across brands; Fiberon PETG-ESD 66, 3DXSTAT ESD-PETG 140[4][5] | 77 for the Recreus 600 g spool; Proto-pasta only lists a 50 g coil, which prices at 120[6][7] |
| Market availability1–5 | Niche, a handful of specialist brands[4][5] | Niche, a handful of specialist brands[3][7][6] |
| Spool sizes & diameters | 1.75 mm; 0.5, 0.75, 1 and 3 kg spools[4][5] | 1.75 and 2.85 mm; 0.05 and 0.6 kg spools[3][6] |
| Typical applications | Electronics fixtures, trays and jigs handled around static-sensitive components[1][2] | Soft-touch overmoulds and skin-contact parts where a non-polyurethane elastomer is wanted[3] |
| Printing Parameters | ||
| Nozzle temperature°C | 250–290 (Fiberon)[1] | 260–280 (BASF Ultrafuse TPS 90A) — far hotter than any TPU here[3] |
| Bed temperature°C | 70–80 (Fiberon); 70 (3DXTech)[1][2] | 70–90 (BASF Ultrafuse TPS 90A)[3] |
| Enclosure / chamber requirement1–5 | Open frame is fine — Fiberon specifies room-temperature chamber[1] | Open frame is fine[3] |
| Bed surface & adhesion aid | Textured PEI, satin or powder-coated sheets; on smooth PEI a glue stick acts as a release agent[8][9] | PEI sheet or painter's tape; Polymaker warns TPU can over-stick and advises a glue stick as a release agent[10][11] |
| Maximum volumetric flow (mm³/s; see test conditions)mm³/s | Fiberon rates the material to 500 mm/s, equivalent to 40 on a 0.4 mm nozzle at 0.2 mm layer — a machine-limited headline rather than a measured melt rate[1][12] | 0.8–2.4 at the 10–30 mm/s BASF specifies on a 0.4 mm nozzle at 0.2 mm layer — the slowest material in this group[3] |
| Bed-adhesion difficulty1–5 | Needs the right surface or a thin adhesive — the problem is releasing the part, not sticking it[8][9] | Not documented |
| Stringing / oozing tendency1–5 | Moderate — retraction tuning needed; Polymaker names stringing as PETG's common quirk[9] | Not documented |
| Overall printing difficulty1–5 | Intermediate — dry filament and a tuned profile; resistivity depends on getting the nozzle temperature right[1] | Advanced — enclosure, hardware upgrades, tuning[3] |
| Extruder requirement | Not documented | Nozzle 0.4 mm or larger; BASF caps print speed at 10–30 mm/s[3] |
| Hardware Wear & Reliability | ||
| Nozzle hardness required1–4 | Hardened steel required[1] | Brass fine indefinitely[13] |
| Abrasiveness1–5 | Moderately abrasive — conductive carbon filler[1] | Non-abrasive[13] |
| Nozzle clog risk1–5 | Low — 3DXTech lists no special nozzle concerns and no minimum layer height for its ESD-PETG, only a 65 °C pre-dry[14] | Moderate — needs dry filament and a clean nozzle; BASF caps print speed at 10–30 mm/s and Simplify3D warns that raised feed rates on flexibles most likely end in a jam[10][3] |
| Heat-creep / jam sensitivity1–5 | Slightly sensitive[15] | Not documented |
| Hotend requirement | No special hot-end required[15] | No special hot-end required, but a direct-drive extruder is (Simplify3D)[10] |
| Moisture Behaviour | ||
| Moisture absorption (hygroscopicity)1–5 | Moderate (0.3–0.8 %) — the PETG matrix reaches 0.40 % saturated at 25 °C / 55 % RH and 3DXTech specifies a 65 °C, 4 h pre-dry[8][14] | Negligible (<0.1 % EMC) — BASF states drying is not necessary, unique among the elastomers here[3] |
| Equilibrium moisture content at ~50 % RH% | 0.41 equilibrium water absorption (Fiberon PETG-ESD)[1] | Not documented |
| Drying temperature & time | 65 °C for 3 h (Fiberon)[1] | None — BASF states Ultrafuse TPS 90A arrives in a printable condition and drying is not necessary[3] |
| Symptoms when wet | Bubbling and popping at the nozzle, stringing and a rough surface[16] | Bubbling and popping at the nozzle, stringing and a rough surface[16] |
| Effect of moisture on strength | Polymaker groups PETG with nylon, PVA and TPU as highly hygroscopic; no dry-versus-conditioned strength figures are published for this grade and the loss shows as bubbling and poor layer adhesion[16] | Not applicable — the SEBS chemistry has no amide or ester linkages to take up water, and BASF specifies no drying at all[3] |
| Storage requirement | Sealed with desiccant; Polymaker groups PETG with the highly hygroscopic materials[16][9] | Sealed with desiccant; often kept in a dryer during the print[16] |
| Mechanical Properties | ||
| Tensile strength (XY)MPa | 36.1 ± 0.9 printed XY, ISO 527 (Fiberon); 3DXTech quotes 50 at break[1][2] | Not documented |
| Young's modulusMPa | 1983 ± 75 printed XY, ISO 527 (Fiberon)[1] | Not documented |
| Elongation at break% | 7.3 ± 0.7 printed XY, ISO 527 (Fiberon); 3DXTech quotes 13 at break[1][2] | Not documented |
| Flexural strengthMPa | 54.0 ± 2.5 printed XY, ISO 178 (Fiberon)[1] | Not documented |
| Flexural modulusMPa | 1651 ± 141 printed XY, ISO 178 (Fiberon)[1] | Not documented |
| Charpy impact, notchedkJ/m² | 5.7 ± 0.5 printed XY, ISO 179, notched (Fiberon)[1] | Not documented |
| Other impact data | Charpy unnotched 29.3 ± 2.2 printed XY (Fiberon, ISO 179)[1] | Not documented |
| Layer adhesion / Z tensileMPa | 20.7 ± 0.6 printed Z, ISO 527 (Fiberon)[1] | Not documented |
| Brittleness1–5 | Moderate[1] | Very ductile — bends far before failing[3] |
| Hardness (scale-specific)Shore A / Shore D / Rockwell | Not documented | 89 Shore A and 29 Shore D (BASF Ultrafuse TPS 90A, ISO 7619-1)[3] |
| Creep resistance / sustained load1–5 | Below average — no ESD-grade creep test; unfilled PETG sagged from 12 to 17.1–20.4 mm over 5 days at 1.25 kg[17][18][19][20] | Poor — no SEBS creep test; a printed 95A TPU bar crept from 74.5 to 82.7 mm over 5 days at 1.25 kg[21] |
| Fatigue / repeated-flex resistance1–5 | Moderate — no ESD-grade S-N curve; unfilled printed PETG ran 79 000–193 000 cycles at 30 % of tensile strength[22] | Excellent — living hinges viable[11] |
| Elasticity / flexibility1–5 | Slightly flexible in thin sections[1] | Rubbery / highly elastic[3] |
| Z strength as % of XY% | 57 (Fiberon, printed Z against XY tensile)[1] | Not documented |
| Wear resistance & friction | Not documented | Abrasion 111 mm³ (ISO 4649) — the poorest abrasion resistance in this group, well behind TPU[3] |
| Thermal Properties | ||
| HDT at 0.45 MPa°C | 76 (ISO 75, 0.45 MPa, Fiberon)[1] | Not documented |
| HDT at 1.8 MPa°C | 72 (ISO 75, 1.8 MPa, Fiberon)[1] | Not documented |
| Glass transition (Tg)°C | 77 (Fiberon) and 80 (3DXTech), DSC[1][2] | Not documented |
| Melting point / Vicat°C | Amorphous — no melting point; Vicat 86 (Fiberon, ISO 306)[1] | 242–249 melting (BASF Ultrafuse TPS 90A, ISO 11357-3)[3] |
| Flammability / UL 94 | Flammable; no UL 94 rating published for standard grades[23] | Not documented |
| Environment & Chemical | ||
| UV resistance1–5 | Not documented | Good — years with some colour shift; Polymaker lists UV exposure among the conditions TPU withstands[11] |
| Chemical resistance | Withstands acids, alkalis, oils and UV exposure[9] | Withstands industrial solvents and UV exposure (Polymaker)[11] |
| Water / humidity resistance in service1–5 | Not documented | Excellent — essentially unaffected[3] |
| Food contact | Not certified for food contact as filament[9] | Not food safe without specific certification (Polymaker)[11] |
| Biodegradability / compostability | Not biodegradable[9] | Not biodegradable[11] |
| Recyclability | Not accepted in household plastic collection[9] | Not accepted in household plastic collection[11] |
| Electrical & ESD properties | Surface resistivity falls with nozzle temperature: 7.0×10⁶–1.6×10⁷ ohm at 250 °C, 3.2×10⁵–4.7×10⁵ at 270 °C and below 1×10⁴ at 290 °C (Fiberon); 3DXTech quotes 10⁷–10⁹ ohm/sq[1][2] | Not documented |
| Health & Safety | ||
| Fume toxicity1–5 | Moderate — measurable VOCs and UFPs, ventilation advised[24] | Low hazard — minimal VOC and particle emission; TPU was not among the nine filaments in the chamber study[24] |
| Ventilation / filtration requirement1–5 | Open a window / occasional ventilation[24] | Open a window / occasional ventilation[24] |
| Dust & fibre handling hazard | Conductive carbon filler is bound in the matrix; avoid inhaling sanding dust[1] | Not documented |
| Post-Processing | ||
| Sanding & machining | Sands poorly — the material is tough and gums rather than powders[15] | Difficult to sand or smooth; Polymaker limits post-processing to trimming or tumbling[11] |
| Gluing & solvent welding | Cyanoacrylate; no common solvent welds PETG cleanly[15] | Cyanoacrylate bonds TPU; no common solvent welds it[11] |
| Vapour / chemical smoothing | No practical vapour smoothing[15] | No practical vapour smoothing[11] |
| Support material pairing | Prints its own supports; Polymaker rates PolyDissolve S1 for PETG[15] | Polymaker warns TPU supports are often very difficult to remove[11] |
| Dimensional accuracy & detail | Nozzle temperature has to be held steady — it moves surface resistivity by three orders of magnitude[1] | Not documented |
| Solvents & Solubility | ||
| Soluble in | No common workshop solvent; 1,2-dichloroethane destroys it inside a week and dichloromethane — a carcinogen — dissolves the surface.[25][26] | Toluene dissolves SEBS at room temperature — Kraton quotes solution viscosity at 25 % mass in toluene, 25 °C.[27] |
| Softened or crazed by | Acetone (+16 % weight over 1 year at 23 °C), ethyl acetate, toluene and DMF swell and soften it; methanol crazes it.[25] | Soaking in hydrocarbon solvents and oils deteriorates it; short exposures are tolerated. Resists water, acids and bases.[27] |
| Solvent welding & smoothing agent | Dichloromethane brushed on is the only agent that smooths PETG — a controlled carcinogen, not workshop stock.[26] | Toluene will weld it, though the joint stays soft; no workshop-safe agent, and vapour smoothing is not practical.[27] |
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
- Fiberon PETG-ESD Technical Data Sheet V1.1 Polymaker · 2026-08 · tds
- 3DXSTAT ESD-PETG Technical Data Sheet 3DXTech · 2026-08 · tds
- Ultrafuse TPS 90A Technical Data Sheet (Version 1.1, SEBS) BASF Forward AM · 2020-12 · tds
- Polymaker product catalogue Polymaker · 2026-08 · vendor
- 3DXTech product catalogue 3DXTech · 2026-08 · vendor
- Recreus product catalogue Recreus · 2026-08 · vendor
- Proto-pasta product catalogue Proto-pasta · 2026-08 · vendor
- Prusament PETG Technical Datasheet v1.1 Prusa Polymers · 2022-02 · tds
- PETG — material basics Polymaker Wiki · 2026-08 · doc
- Flexible (TPE/TPU) — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
- TPU — material basics Polymaker Wiki · 2026-08 · doc
- Max volumetric speed Prusa Knowledge Base · 2026-08 · doc
- Extrudr Product Catalogue (DURAPRO PA12 data block) Extrudr · 2025-03 · tds
- 3DXSTAT ESD-PETG — product page (print recommendations) 3DXTech · 2026-08 · doc
- PET and PETG — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
- Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
- PCTG vs PETG comparison — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
- Extrudr PETG vs PCTG vs XPETG-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
- Prusament PETG-CF vs PETG V0 vs PETG — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
- BambuLab PETG Basic vs Translucent vs PETG-CF — results spreadsheet My Tech Fun (Igor Gaspar) · 2026-08 · test
- BambuLab TPU 95A HF vs Qidi TPU 95A HF — results spreadsheet My Tech Fun (Igor Gaspar) · 2024-02 · test
- Mechanical Properties of Additively Manufactured Polymeric Materials — PLA and PETG — For Biomechanical Applications Polymers 16(13):1868 · 2024-06 · paper
- Prusament PETG V0 Technical Datasheet Prusa Polymers · 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
- Eastman Spectar copolyester — Chemical resistance (unstressed bars, 1 year at 23 °C) Eastman Chemical Company · 2026-08 · tds
- Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc
- KRATON polymers Grade Range — chemical resistance and toluene solution data Kraton Corporation · 2025-07 · tds