ThermaX™ PPE-PS (Polyphenylene Ether + Polystyrene)
ThermaX™ PPE-PS is a polyphenylene ether alloy which exhibits exceptional thermal, mechanical, and chemical resistance properties. Our PPE-PS filament is made from a UL94 V0 rated flame retardant base resin. ThermaX™ PPE has been an ideal material for a wide array of applications in demanding markets such as aerospace, automotive, industrial, electronics, and telecommunications.
Gearbox HT2™ 3D Printer: Print industrial-grade parts using our PPE-PS and more with the new Gearbox™ HT2 High-Temp 3D Printer.
Print Recommendations

Extruder Temp
290-320°C

Bed Temp
90-110°C

Heated Chamber
Recommended
50-80°C if possible

Nozzle Specs
No special concerns

Bed Adhesion
Magigoo Bed Prep

Layer Height
No special concerns

Drying Specs
80°C for 4 hours

Supports
Water Soluble Support

Safety Data Sheet
This material doesn’t yet have a formal SDS.
Benefits of PPE-PS include:
- High thermal properties with an HDT of 120°C
- Flame retardant rated UL94 V-0
- UV resistance making it suitable for outdoor applications, rated F1 per UL 746C
- Amorphous structure granting it very low, near isotropic shrinkage
- Excellent chemical resistance to most aqueous solutions, detergents, acids, and bases
- Excellent long-term hydrolytic stability making it very stable in boiling water
- Very low moisture absorption
- Stable dielectric constant and dissipation factor over a wide range of temperatures and frequencies
Filament Specifications:
1.75mm and 2.85mm +/- 0.05mm in diameter
Recommended Print Settings:
- Extruder: 290-320°C
- Bed Temp: 90-110°C
- Bed Prep: Magigoo Bed Prep or 3DXTECH Polyimide Tape gives us the best results
- Heated Chamber: Recommended, held up to 50-80°C if at all possible
- Supports: AquaTek™ Water Soluble X1 USM Universal Support Material is specially designed to work with complex part geometries
- Drying Instructions: 80°C for 4 hours