Polysulfone (PSU) is a high-temperature aromatic sulfone polymer. PSU has excellent thermal and chemical resistance, making it well suited for demanding applications in automotive, aerospace, electronics, defense, food service, industrial, plumbing, medical, semi-con applications. Attributes of Firewire® Polysulfone (PSU) include: Very high thermal properties with a Tg of 187°C and HDT of 172°C [Superior to ULTEM™ 9085] Excellent hydrolytic resistance High Environmental Stress Crack Resistance (ESCR) Highly resistant to gamma radiation Sterilization suitable - including EtO gas, radiation, steam autoclaving, plasma, dry heat and cold sterilization Resists most common automotive fluids, including gasoline, antifreeze, transmission fluid, motor oil, power steering fluid, windshield washer fluid Excellent dimensional stability (low creep sensitivity and low, uniform coefficient of thermal expansion) and highly reproducible part-to-part dimensions ThermaX™ PSU is an excellent alternative to ULTEM™ 9085:Superior thermal properties (higher Tg and HDT) allow for higher strength and stiffness at elevated temperaturesLower cost per kg and lower density (more filament per kg) Filament Specifications: Diameter: 1.75mm (+/- 0.05mm) Density: 1.24g/cm3 Recommended Print Conditions: (starting points) Extruder Temp: 350 - 380°C (all-metal extruder) Bed Temp: 140-160°C Bed Prep: Nano Polymer Adhesive , ULTEM™ Tape, Polyimide Tape, Lightly sanded FR4 or Perf board. Other: No cooling fan, Print speeds of 15-70mm/sn (70 maximum, speeds will vary depending on part geometry and results) We recommend printing within a heated enclosure or in a warm build environment. PSU is sold by Solvay under the tradename Udel and by BASF under the tradename Ultrason S. Download MSDS & Technical Data
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