Carbon Fiber PPA Filament
PPA-CF
B
Good but situational
Also known as:PPA-CFPPACFCF-PPACarbon Fiber Polyphthalamide
Family:Nylon (PA)Why Use Carbon Fiber PPA?
- The practical form of PPA: carbon fiber adds stiffness and cuts shrinkage and warping versus unfilled PPA
- Some formulations exceed 200 MPa flexural strength, well beyond common engineering filaments
- Excellent dimensional stability for precision brackets, fixtures, jigs and load-bearing parts
- Keeps PPA's heat and chemical resistance with far better print success than unfilled PPA
Things to Consider
- Abrasive: a hardened steel or wear-resistant nozzle is mandatory
- Still needs ~300C and an enclosure, so printer requirements are the real gatekeeper
- Carbon fiber trades away impact toughness for stiffness
- PA6-CF is cheaper and enough for most engineering parts; PPA-CF earns its price on heat, chemicals and dimensional accuracy
Safety & Ventilation
- Print Carbon Fiber PPA in a well ventilated area. Higher-temperature materials like this can release fumes and fine particles while printing. An enclosure improves print quality and helps contain fumes, but it is not a substitute for fresh air, so vent the enclosure or run an air filter and avoid an unventilated occupied room.
Polyamide Family Compared: PPA, PPA-CF, PA6, PA12 and PA612
These are all nylons. PPA is a semi-aromatic polyamide, meaning aromatic rings sit in the polymer backbone, while PA6, PA12 and PA612 are fully aliphatic. That difference is why PPA runs hotter and stays dimensionally stable in humid air, and why it is the hardest of the group to print.
| Property | PPAPolyphthalamide | PPA-CFCarbon-fiber PPA | PA6Nylon 6 | PA12Nylon 12 | PA612Nylon 612 |
|---|---|---|---|---|---|
| Strength | Very high | Excellent | High | Good | High |
| Stiffness | Very high | Excellent | High | Moderate | High |
| Moisture resistance | Very good | Very good | Fair | Excellent | Very good |
| Heat resistance | Excellent | Excellent | High | Moderate | Good |
| Print difficulty | Very high | Very high | High | Moderate | Moderate to high |
| Typical nozzle temp | 280-310°C | 280-310°C | 240-290°C | 240-270°C | 250-280°C |
| Melting point | ~300°C | ~300°C | ~220°C | ~178°C | ~215°C |
| Glass transition (Tg) | ~130°C | ~130°C | ~60°C | ~40°C | ~80°C |
| Typical applications | Automotive, aerospace, high-temp parts | Structural parts, tooling, fixtures | Gears, bushings, brackets | Tubing, clips, connectors | Connectors, housings, bushings |
General characteristics only: properties vary substantially with formulation, additives, fiber reinforcement and manufacturer, so check the technical data sheet for the exact spool you buy. PA6 absorbs the most moisture of the group, which is why it needs a dry box during printing rather than just dry storage.
Technical Data
Hardware Requirements
Enclosure
Not NeededDrybox
Not NeededHardened Nozzle
Not NeededBed Surface Compatibility
Textured PEI
Satin PEI
Smooth PEI
Polypropylene
High Temp
PA/Nylon Sheet
Hover over icons for details. Always use proper release agents when needed.
Frequently Asked Questions
What is Carbon Fiber PPA filament?
Carbon Fiber PPA (PPA-CF) is a 3D printing filament. The practical form of PPA: carbon fiber adds stiffness and cuts shrinkage and warping versus unfilled PPA
What temperature should I print Carbon Fiber PPA at?
Carbon Fiber PPA typically prints at nozzle temperatures of 280-310°C and bed temperatures of 100-120°C. Minimal
Do I need an enclosure to print Carbon Fiber PPA?
Yes, an enclosure is required for printing Carbon Fiber PPA. Still needs ~300C and an enclosure, so printer requirements are the real gatekeeper
What is Carbon Fiber PPA filament best for?
Carbon Fiber PPA is best for: The practical form of PPA: carbon fiber adds stiffness and cuts shrinkage and warping versus unfilled PPA; Some formulations exceed 200 MPa flexural strength, well beyond common engineering filaments; Excellent dimensional stability for precision brackets, fixtures, jigs and load-bearing parts; Keeps PPA's heat and chemical resistance with far better print success than unfilled PPA.
What are the downsides of Carbon Fiber PPA filament?
The main considerations when using Carbon Fiber PPA: Abrasive: a hardened steel or wear-resistant nozzle is mandatory; Still needs ~300C and an enclosure, so printer requirements are the real gatekeeper; Carbon fiber trades away impact toughness for stiffness; PA6-CF is cheaper and enough for most engineering parts; PPA-CF earns its price on heat, chemicals and dimensional accuracy.