ESD-Safe PEI 3D Filament
3DXTECH produces this 3D printing filament using a specialty compound custom-formulated using ULTEM™ PEI resin and advanced carbon additives. PEI is an amorphous, high-performance polymer that combines excellent mechanical, thermal, and chemical resistance properties. Our PEI based filaments offer the ability to create parts with excellent properties at elevated temperatures due to a very high glass transition temperature (Tg). Ideal for use in critical applications that require electrostatic discharge (ESD) protection, a high level of cleanliness, and the outstanding thermal and chemical properties you've come to expect with PEI based compounds.
Product attributes include:
- 10^6 to 10^7 ohm surface resistivity on 3DP sample using concentric ring test method
- Consistent surface resistivity
- Low particulate contamination
- High thermal properties
- Inherent flame resistance
- Long-term hydrolytic stability
- 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
- Good resistance to a broad range of chemicals, such as automotive fluids, fully halogenated hydrocarbons, alcohols, and aqueous solutions
- Stable dielectric constant and dissipation factor over a wide range of temperatures and frequencies
Typical applications include:
- Semi-con / Electronics: HDD Components, Wafer Handling, Jigs, Casings, & Connectors
- Industrial: Conveying, Metering, and Sensing applications
- Diameter: 1.75mm (+/- 0.05mm)
- Color: Black
Recommended Print Conditions:
- Extruder Temp: 360 - 390°C (all-metal extruder)
- Bed Temp: 140 - 160°C
- Bed Prep: PEI tape (ideal); or Polyimide Tape, Lightly sanded FR4 or Perf board.
- Other: No cooling fan, Print speeds of 1000mm/min (starting point)
Annealing Printed Parts: If needed, parts printed using PEI 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 the PEI 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 3: After 1 hour at 300°F, increase oven temp to 400°F and allow to stabilize 1 additional hour.
Step 4: After 1 hour at 400°F, reduce heat back to 300°F and allow to stabilize for 30 minutes.
Step 5: After 30 minutes, turn off oven heat and allow printed parts to return to room temp inside the oven as it cools.
ULTEM™ is a registered trademark of Sabic Innovative Plastics.
3DXTECH manufactures this filament using a custom-formulated ESD-safe compound made using ULTEM™ PEI resin.