Filament comparison
ABS-CF vs PVB
Compare printing settings, strength, heat resistance, dated prices and sources.
2 selected · all documented properties
| Property | Carbon-fibre ABS (ABS-CF)ABS | PVBSPECIALTY |
|---|---|---|
| Market snapshot | ||
| Listing priceUSD/kg; dated snapshots | $35.99/kg median; $22.00–$125.00/kg across 7 dated product listings | $66.65/kg median; $49.32–$79.98/kg across 3 dated product listings |
| Identity & Market | ||
| Base polymer / chemistry | ABS reinforced with chopped carbon fibre[1] | Polyvinyl butyral — a printable thermoplastic whose surface can be smoothed with isopropyl alcohol instead of a hot solvent[2] |
| Densityg/cm³ | 1.11 (ISO 1183)[1] | 1.10 (Polymaker PolySmooth, ISO 1183); Prusament PVB 1.10[2][3] |
| Typical priceUSD/kg | 1 kg-equivalent spools span 22–125; the middle of the market is about 36[4][5][6][7][8] | 1 kg-equivalent spools cluster near 80[9][10] |
| Price range across brandsUSD/kg | 22–125 across brands; IEMAI 22, Siraya Tech 28 and 36 for the core-shell grade, YXPOLYER 35, Push Plastic 50 at 2 kg, 3DXTech 64 at 750 g; Stratasys-compatible cartridges run far higher[4][5][6][7][11][8] | 49–102 across brands; Polymaker PolySmooth 49 at 750 g, Prusament PVB 80–102 at 500 g[9][10] |
| Market availability1–5 | Available from several mainstream brands[4][5] | Available from several mainstream brands[9][10] |
| Spool sizes & diameters | 1.75 and 2.85 mm; 0.5, 0.75 and 2 kg spools plus Stratasys-compatible cartridges[4][5] | 1.75 and 2.85 mm; 0.5 and 0.75 kg spools[9][10] |
| Typical applications | Stiff tooling and fixtures that must survive above 100 °C[1] | Display models and light guides where a layer-free surface matters more than strength[2] |
| Diameter tolerance± mm | Not documented | +/- 0.03 (Prusament PVB)[3] |
| Printing Parameters | ||
| Nozzle temperature°C | Not documented | 215 +/- 10 (Prusament PVB)[3] |
| Bed temperature°C | Not documented | 75 +/- 5 (Prusament PVB)[3] |
| Enclosure / chamber requirement1–5 | Enclosure recommended[12] | Open frame is fine[2] |
| Part cooling fan | Not documented | 100 % part cooling (Prusament PVB)[3] |
| Bed surface & adhesion aid | Clean the plate and apply glue; Simplify3D also lists Kapton tape and ABS slurry[12][13] | Smooth PEI sheet or satin sheet; Prusa states a brim is not generally necessary[3] |
| Warping tendency1–5 | Moderate — needs adhesion aid or draught shield; the fibre reduces warping against unfilled ABS[12] | Not documented |
| Bed-adhesion difficulty1–5 | Needs a specific surface plus adhesive[12] | Not documented |
| Stringing / oozing tendency1–5 | Slight — Polymaker advises 1–2 mm retraction at 20–30 mm/s[14] | Not documented |
| Overall printing difficulty1–5 | Intermediate — dry filament and a tuned profile; hardened nozzle mandatory[12] | Easy — minor profile tuning; it prints close to PLA[2] |
| Hardware Wear & Reliability | ||
| Nozzle hardness required1–4 | Hardened steel required[12] | Brass fine indefinitely[2] |
| Abrasiveness1–5 | Highly abrasive — standard CF composite[12] | Non-abrasive[2] |
| Nozzle clog risk1–5 | Moderate — needs dry filament and a clean nozzle; 3DXTech specifies a hardened nozzle of 0.4 mm minimum and 0.25 mm layers or higher, and Prusa lists composites as a higher clogging risk[15][16][17] | Moderate — needs dry filament and a clean nozzle; Prusa calls PVB very prone to absorbing moisture and requires a 60 °C, 4 h dry before every print[18][19] |
| Heat-creep / jam sensitivity1–5 | Slightly sensitive[13] | Not documented |
| Hotend requirement | No special hot-end required[13] | Not documented |
| Moisture Behaviour | ||
| Moisture absorption (hygroscopicity)1–5 | Moderate — the ABS matrix takes up 0.51–0.65 % saturated at 25 °C / 55 % RH and 3DXTech specifies a 80 °C, 4 h pre-dry[20][21][15] | Very high (>2 %) — 2.36 % equilibrium water absorption (Polymaker PolySmooth), above every PLA and PETG grade here[2] |
| Equilibrium moisture content at ~50 % RH% | Not documented | 2.36 equilibrium water absorption (Polymaker PolySmooth); 2.09 for PolyCast; Prusament PVB takes up 0.18 in 24 h and 0.35 in 7 days at 24 °C and 22 % RH[2][22][3] |
| Drying temperature & time | Not documented | Maximum 60 °C for 4-8 h depending on how wet the filament is (Prusament PVB)[3] |
| Symptoms when wet | Bubbling and popping at the nozzle, stringing and a rough surface[19] | Not documented |
| Effect of moisture on strength | Polymaker rates ABS moderate-sensitivity and publishes no dry-versus-conditioned figures; absorbed water flashes to steam in the hotend and shows as bubbling and poor layer adhesion[19] | Polymaker publishes no dry-versus-conditioned figures; at 2.36 % equilibrium uptake the material has to be kept dry to print cleanly[2][19] |
| Storage requirement | Sealed with desiccant; Polymaker rates ABS moderate-sensitivity[19] | Sealed with desiccant[19] |
| Mechanical Properties | ||
| Tensile strength (XY)MPa | 46 at break (printed XY, ISO 527)[1] | 51.8 ± 0.7 printed XY, ISO 527 (PolySmooth); 53.2 ± 1.1 for PolyCast; Prusament PVB gives 50 +/- 5 at yield printed horizontal (ISO 527-1) and 57 +/- 1 on the filament (ISO 527)[2][22][3] |
| Young's modulusMPa | 5210 (printed XY, ISO 527) — more than double unfilled ABS[1] | 2199 ± 43 printed XY and 2010 ± 69 printed Z, ISO 527 (PolySmooth); Prusament PVB gives 1700 +/- 100 in both print directions (ISO 527-1)[2][3] |
| Elongation at break% | 2 at break (printed XY, ISO 527)[1] | 5.7 ± 0.5 printed XY, ISO 527 (PolyCast)[22] |
| Flexural strengthMPa | 76 (printed XY, ISO 178)[1] | 72 +/- 1 printed horizontal and 73 +/- 3 printed vertical, ISO 178 (Prusament PVB)[3] |
| Flexural modulusMPa | 5260 (printed XY, ISO 178)[1] | 2233 ± 106 printed XY, ISO 178 (PolyCast); Prusament PVB gives 2200 +/- 100 horizontal and 2300 +/- 100 vertical (ISO 178)[22][3] |
| Charpy impact, notchedkJ/m² | Not documented | 7 +/- 1 printed horizontal and 10 +/- 1 printed vertical, ISO 179-1 notched (Prusament PVB)[3] |
| Other impact data | Not documented | Charpy unnotched 55 +/- 7 printed horizontal and 59 +/- 12 printed vertical (Prusament PVB, ISO 179-1)[3] |
| Layer adhesion / Z tensileMPa | Not documented | 26.3 ± 2.1 printed Z, ISO 527 (PolyCast); Prusament PVB gives 49 +/- 5 at yield printed vertical (ISO 527-1) and 9 +/- 1 on Prusa's interlayer adhesion test[22][3] |
| Brittleness1–5 | Brittle — snaps with little warning; elongation at break 2 %[1] | Moderate[2] |
| Hardness (scale-specific)Shore A / Shore D / Rockwell | Not documented | Shore D 77 (Prusa Polymers method)[3] |
| Creep resistance / sustained load1–5 | Good — no creep test found; chopped carbon fibre restrains matrix flow and modulus rises to 5210 MPa against 2200–2330 for unfilled ABS[1][20][21] | Not documented |
| Fatigue / repeated-flex resistance1–5 | Below average — no S-N curve found; elongation at break falls to 2 % against 10.5 % for unfilled ABS[1][20] | Not documented |
| Elasticity / flexibility1–5 | Rigid[1] | Rigid[2] |
| Z strength as % of XY% | Not documented | 98 (Prusament PVB, printed vertical against horizontal tensile yield, ISO 527-1: 49 +/- 5 against 50 +/- 5) — the most isotropic printed material in this dataset[3] |
| Thermal Properties | ||
| HDT at 0.45 MPa°C | Not documented | 68 (PolySmooth) and 67 (PolyCast), ISO 75 at 0.45 MPa; Prusament PVB 63 (ISO 75 at 0.45 MPa)[2][22][3] |
| HDT at 1.8 MPa°C | Not documented | 66 (PolySmooth) and 53 (PolyCast), ISO 75 at 1.8 MPa; Prusament PVB 58 (ISO 75 at 1.8 MPa)[2][22][3] |
| Glass transition (Tg)°C | 105 (DSC)[1] | 70 (DSC) for both PolySmooth and PolyCast[2][22] |
| Melting point / Vicat°C | Not documented | Amorphous — no melting point; Vicat 70 (PolySmooth) and 67 (PolyCast), ISO 306[2][22] |
| Thermal expansion (CTE)µm/m·K | 19–25 along the print bead and 80–84 in the build direction at 30 °C (20 wt% CF, large-format printed, TMA)[23] | Not documented |
| Environment & Chemical | ||
| Chemical resistance | Good against weak acids, weak alkalis, oils and grease; dissolved by acetone[24] | Not documented |
| Food contact | Not food safe — Polymaker cites potential chemical leaching[14] | Not documented |
| Biodegradability / compostability | Not biodegradable[14] | Not documented |
| Recyclability | Mechanically recyclable but not accepted in household plastic collection[14] | Not documented |
| Electrical & ESD properties | Surface resistance above 10⁹ ohm/sq — not static-dissipative (ASTM D257)[1] | Not documented |
| Health & Safety | ||
| Fume toxicity1–5 | High — hazardous VOC such as styrene; enclosure and filtration needed[25][12] | Low hazard — minimal VOC and particle emission; none of these materials was in the chamber study[25] |
| VOC emission rateµg/min | 12–113 styrene, the dominant VOC from every ABS and HIPS combination tested[25] | Not documented |
| Ultrafine-particle emission rateparticles/min | 2 × 10¹⁰ to 9 × 10¹⁰ median across all ABS printers, two orders of magnitude above PLA's ≈1 × 10⁸[25] | Not documented |
| Hazardous species emitted | Styrene dominates. Bambu Lab states ABS and ASA release harmful gases such as styrene at printing temperature, which can be toxic and cause dizziness or nausea[25][12] | Not documented |
| Ventilation / filtration requirement1–5 | Enclosure with carbon and HEPA filtration — an enclosure alone cut measured UFP by only about 35 %[25][12] | Open a window / occasional ventilation[25] |
| Dust & fibre handling hazard | Carbon fibre is bound in the matrix; sanding dust should not be inhaled[1] | Not documented |
| Post-Processing | ||
| Sanding & machining | Sands well and takes filler before painting[14] | Not documented |
| Painting & finishing | Paints readily after light abrasion[14] | Not documented |
| Vapour / chemical smoothing | Acetone smoothing is blunted by the fibre — only the resin fraction dissolves[24] | Isopropyl alcohol vapour smoothing is the point of the material — Polymaker markets PolySmooth for hands-free post-processing to a layer-free surface[2] |
| Support material pairing | HIPS breaks away or dissolves in d-limonene; Bambu Lab sells a dedicated Support for ABS[26][12] | PolyDissolve S1 is rated for PVB (Polymaker)[27] |
| Dimensional accuracy & detail | Not documented | PolyCast is the investment-casting variant of the same chemistry — it burns out cleanly rather than being smoothed[22] |
| Solvents & Solubility | ||
| Soluble in | Acetone dissolves the resin and leaves the fibre as sludge; MEK, THF, ethyl acetate and chlorinated solvents do the same.[28][24] | Isopropyl alcohol dissolves it; Prusa describes PVB as soluble only in IPA, and it is not water-soluble.[18] |
| Softened or crazed by | Petrol and perchloroethylene soften it and benzene attacks it; d-limonene disrupts layer adhesion in some ABS and ASA grades.[28][29] | Not documented |
| Solvent welding & smoothing agent | Acetone vapour reaches only the resin fraction, so the fibre is left standing proud of the smoothed surface.[30][24] | Isopropyl alcohol: brushed or sprayed on for speed, or several hours in IPA vapour for a glass-like surface.[30][18] |
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
- CarbonX Carbon Fiber ABS Technical Data Sheet 3DXTech · 2026-08 · tds
- PolySmooth Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
- Prusament PVB Technical Datasheet v1.1 Prusa Polymers · 2022-02 · tds
- 3DXTech product catalogue 3DXTech · 2026-08 · vendor
- Push Plastic product catalogue Push Plastic · 2026-08 · vendor
- IEMAI CF-ABS 3D Printing Filament product page IEMAI 3D · 2026-08 · vendor
- Siraya Tech Fibreheart ABS-CF Filament product page Siraya Tech · 2026-08 · vendor
- YXPOLYER ABS CF product page YXPOLYER · 2026-08 · vendor
- Polymaker product catalogue Polymaker · 2026-08 · vendor
- Printed Solid product catalogue Printed Solid · 2026-08 · vendor
- Siraya Tech Fibreheart ABS-CF Core Filament product page Siraya Tech · 2026-08 · vendor
- ABS / ASA / PC Usage Guide Bambu Lab Wiki · 2026-08 · doc
- ABS — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
- ABS — material basics Polymaker Wiki · 2026-08 · doc
- CARBONX ABS+CF — product page (print recommendations) 3DXTech · 2026-08 · doc
- Composite materials filled with carbon, kevlar or glass Prusa Knowledge Base · 2026-08 · doc
- Carbon Fiber Filled — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
- Prusament PVB — material page Prusa Polymers · 2026-08 · tds
- Wet Filament — signs, causes and drying Polymaker Wiki · 2026-08 · doc
- Bambu Filament Technical Data Sheet V3.0 — ABS Bambu Lab · 2026-08 · tds
- Polymaker ABS Pro Technical Data Sheet V1 (2026-05-29) Polymaker · 2026-05 · tds
- PolyCast Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
- Effects of Fiber Orientation on the Coefficient of Thermal Expansion of Fiber-Filled Polymer Systems in Large Format Polymer Extrusion-Based Additive Manufacturing Materials 15(8):2764 · 2022-04 · paper
- PolyLite ABS Technical Data Sheet (V5.5 served at this URL) Polymaker · 2024-11 · 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
- HIPS — Ultimate 3D Printing Materials Guide Simplify3D · 2026-08 · doc
- PolyDissolve S1 Technical Data Sheet V5.4 Polymaker · 2024-11 · tds
- Chemical resistance — resistance of Ensinger plastics to chemicals (DIN 50 014, 23/50) Ensinger · 2026-08 · tds
- HIPS — Knowledge Base Prusa Research · 2026-08 · doc
- Improve your 3D prints with chemical smoothing Prusa Research · 2026-08 · doc