PPA Filament
High-performance nylon for hot, demanding parts. PPA (polyphthalamide) is a semi-aromatic nylon with higher heat resistance, strength, and stiffness than standard PA — often carbon- or glass-filled — built for under-hood automotive, structural, and elevated-temperature applications.
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What is PPA filament?
PPA (Polyphthalamide) is a semi-aromatic, high-performance nylon — sometimes called high-temperature nylon. Its aromatic backbone gives it higher heat resistance, strength, stiffness, and chemical resistance than standard PA6 or PA12, with a high glass-transition temperature that keeps parts stable where ordinary nylon would soften.
PPA is frequently sold carbon- or glass-fiber reinforced to push stiffness and dimensional stability even higher, making it a metal-replacement candidate for under-hood automotive, structural brackets, and hot functional parts. Like all nylons it's strongly hygroscopic and must be dried; it prints at high temperatures and benefits from an enclosure.
PPA vs standard nylon vs PC — how to choose
PPA is the high-temperature upgrade to ordinary nylon:
For maximum stiffness choose a PPA-CF or PPA-GF grade — ask about availability at Rev1.
Printing PPA successfully
- Dry aggressively. PPA is highly hygroscopic — dry before and during printing.
- High nozzle temperatures — typically 280 °C+ range; follow the grade's datasheet.
- Heated chamber / enclosure to control warping and build layer strength.
- Hardened nozzle if the grade is carbon- or glass-filled (abrasive).
- Strong bed adhesion — use a nylon-friendly surface or glue.
PPA brands stocked at Rev1
Rev1 Technologies stocks PPA / high-performance nylon filament from multiple brands, all shipped from Auburn Hills, Michigan with real phone support. Use the brand filter below to narrow the range, or call (248) 707-2950 for spec, bulk, and color-match help.