BASF Ultrafuse® PPSU

BASF Ultrafuse® PPSU is a polyphenylsulfone-based 3D printing filament developed specifically for FDM technology. One of its most important characteristics is fire resistance. The filament complies with the EN 45545-2 railway classification and has been approved for use during the manufacture of rail vehicles operating both on the surface and underground. Ultrafuse® PPSU also stands out with excellent thermal stability, good chemical resistance, and high strength.

The Ultrafuse® PPSU can be used to 3D print functional parts, which require resistance to high temperatures and should also minimize the risk of spreading fire in emergency scenarios. The filament comes in the natural yellow/brown color.

Available Colors

Natural
Dedicated for Container Weight Diameter Extrusion
Zortrax Endureal spool 750 g ± 5% 1.75 mm Single
Key Properties Metric Imperial Test Method
Flame class rating V0 @ 1.5 mm and 3.0 mm thickness V0 @ 1.5 mm and 3.0 mm thickness UL 94
Young’s Modulus 2221 MPa 322.1 ksi ISO 527
HDT at 1.8 MPa 211 °C 411.8 °F ISO 75-2
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End-use railroad air duct component 3D printed with BASF Ultrafuse® PPSU on the Zortrax Endureal 3D printer.

Train ventilation system component End-use railroad air duct component 3D printed with BASF Ultrafuse® PPSU on the Zortrax Endureal 3D printer.

Applications

  • Railcars' end-use components, such as grab handles, overhead components, window frames, covers or air ducts
  • Parts protecting electrotechnical devices
  • Parts intended for autoclaving processes
  • Interior elements in aircrafts, such as cockpit panels, or ductwork
  • Parts intended to work in high-temperature environment

Aerospace-grade flame retardancy

Besides being compliant with European railway flame-retardancy requirements, BASF Ultrafuse® PPSU filament has been also tested to achieve V0 rating in accordance with the UL 94 norm which is often necessary for aircraft components. This means that a sample of this material extinguished within 10 seconds from ignition in a vertical burnout test.

High dimensional stability

Because BASF designed the Ultrafuse® PPSU specifically for the 3D printing process, the material offers outstanding dimensional accuracy. This filament can be therefore used for 3D printing precise, high-performance parts that retain their properties and geometry in a wide range of temperatures.

Chemical resistance

BASF Ultrafuse® PPSU is resistant to oils in temperatures reaching 170 °C. The material can be therefore used to 3D print components for machines operating at high temperatures. This chemical resistance also extends to lubricants, fuels, and coolants.

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