Filament (FDM)
PPS 3D printing
PPS (polyphenylene sulfide) is a semi-crystalline high-performance polymer known for its chemical resistance and dimensional stability. We print it in Brescia with FDM, unfilled or carbon-fiber-filled.
What it is for
PPS is used where chemical resistance and dimensional stability matter: pump bodies, impellers, fittings, manifolds, components in contact with fuels, oils, coolants, acids and bases, supports and insulators in hot environments. It absorbs very little moisture and is inherently hard to ignite.
It is a stiff material with little ductility, especially with carbon fiber: do not choose it for parts that take impacts or have to flex, where nylon is the better fit. For high mechanical loads at high temperatures move to PEEK; if you need an amorphous polymer, tougher and stable in heat, consider Ultem.
Variants compared
| Property | PPSQuote | PPS-CF (carbon fiber)annealed 125 °C, 16 hQuote |
|---|---|---|
| Mechanical | ||
| Tensile strengthISO 527 | 50 MPaprinted specimen, XY flat, at break | 59.4 MPaXY32 MPa Z |
| Tensile modulusISO 527 | 2,650 MPaprinted specimen, XY flat | 5,446.7 MPaXY2,790 MPa Z |
| Elongation at breakISO 527 | 18%printed specimen, XY flat, at break | 1.4%XY1.6% Z |
| Flexural strength | 52 MPaISO 178, printed specimen, XY flat | 94.3 MPaISO 306, XY30 MPa Z |
| Flexural modulusISO 178 | 2,540 MPaprinted specimen, XY flat | 4,646.9 MPaXY2,619.3 MPa Z |
| Charpy impact, notchedISO 179, XY | on request | 5.3 kJ/m² |
| Charpy impact, unnotchedISO 179, XY | on request | 11.4 kJ/m²4.1 kJ/m² Z |
| Thermal | ||
| Heat deflection temperature (HDT) at 0.45 MPaISO 75 | 90 °Cprinted specimen, XY flat | 252.5 °C |
| Heat deflection temperature (HDT) at 1.8 MPaISO 75 | on request | 133 °C |
| Glass transition (Tg)DSC, 10 °C/min | on request | 97.7 °C |
| Melting point (Tm) | 283 °CISO 11357 | 279.7 °CDSC, 10 °C/min |
| Vicat softening temperatureISO 306 | on request | 267.5 °C |
| Physical | ||
| DensityISO 1183 | 1.28 g/cm³ | 1.29 g/cm³at 23 °C |
| Water absorptionequilibrium at 23 °C and 70% RH | on request | 0.225%standard not stated on the sheet |
| Fire behavior | ||
| Flammability ratingUL 94 | V-0 at 1.5 mmbase resin, not the printed part | V-0 at 1.5 mm |
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Typical values from the makers' data sheets, measured on specimens under the conditions stated. They are not guaranteed design values: for a critical application ask us for a test on your part.
Treatments after printing
For PPS-CF the maker recommends annealing at 125 °C for 16 hours: the values in the table, the 252.5 °C heat deflection temperature included, are measured on specimens annealed that way. For unfilled PPS annealing is available on request.
Annealing and filament drying are done in a Memmert oven at a controlled temperature.
Design limits
- Build volume
- 350 × 350 × 450 mm
- Minimum wall
- 3 mm
- Dimensional tolerance
- ±0.6 mm up to 100 mm, ±0.75% above
These are the limits of the process, the same for every variant unless stated. For critical dimensions, talk to us before printing.
Which variant to choose
- PPS: unfilled, more ductile (elongation at break 18%). Specimens printed flat: tensile strength at break 50 MPa (ISO 527), heat deflection temperature 90 °C at 0.45 MPa (ISO 75). For parts in contact with aggressive fluids that do not work under load in heat.
- PPS-CF (carbon fiber): stiffer and far more stable in heat. Specimens annealed at 125 °C for 16 hours: modulus 5446.7 MPa, tensile strength 59.4 MPa in XY and 32 MPa in Z (ISO 527), heat deflection temperature 252.5 °C at 0.45 MPa and 133 °C at 1.8 MPa (ISO 75).
FAQ
Frequently asked questions
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