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
- 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.