Firewire® PSU 3D Printing Filament - 250g

Firewire® PSU 3D Printing Filament

$50.00

Firewire® PSU 3D Printing Filament

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.    

Firewire® is 3DXTECH's brand of high-temperature polymers designed specifically for 3D printing the highest performance parts possible.  

Attributes of Firewire® Polysulfone (PSU) include:

  • Very high thermal properties with a Tg of 185°C and HDT of 175°C
  • Excellent hydrolytic resistance
  • High Environmental Stress Crack Resistance (ESCR)
  • Highly resistant to gamma radiation
  • Sterilization capable - 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
  • Inherent flame resistance (V-O)
  • Excellent dimensional stability (low creep sensitivity and low, uniform coefficient of thermal expansion) and highly reproducible part-to-part dimensions
  • Exceptional strength and modulus, even at elevated temperatures  

Filament Specifications:

  • Diameter:  1.75mm (+/- 0.05mm)
  • Color:  Natural / Slight Yellow Cast
  • Density:  1.24g/cm3

Recommended Print Conditions: (starting points)

  • Extruder Temp: 350 - 380°C (all-metal extruder)
  • Bed Temp: 140-160°C
  • Bed Prep: Ultem® Tape, Polyimide Tape, Lightly sanded FR4 or Perf board.
  • Other:  No cooling fan, Print speeds of 1000mm/min (starting point).  We recommend printing within a heated enclosure or in a warm build environment.  

Annealing Printed Parts:  If needed, PSU parts printed on an open source / desktop 3D printer may be annealed in a hot-air oven to reduce any printed-in stresses that may be present in the part.  Printed-in stresses may occur in any plastic and may result in lower than expected mechanical properties.  If this is an issue with your part, then you can follow the simple 5-step ramp up/down process for annealing your parts.

Step 1:  Place printed parts in cool, room-temp oven.
Step 2.  Set temp to 300°F and allow to stabilize for 1 hour.  
Step 2:  After 1 hour at 300°F, increase oven temp to 400°F and allow to stabilize 1 additional hour.  
Step 3:  After 1 hour at 400°F, reduce heat back to 300°F and allow to stabilize for 30 minutes.  
Step 4:  After 30 minutes, turn off oven heat and allow printed parts to return to room temp inside the oven as it cools.

Firewire® is a registered trademark of 3DXTECH, it's owners, and affiliates.