3D Printing with PEKK
PEKK (polyetherketoneketone) is a relative of PEEK in the PAEK family, and offers similar high-performance mechanical properties, as well as temperature and chemical resistances.
- Market leading X/Y and Z tensile strength
- Equivalent rigidity to many metals
- High strength, toughness and impact resistance
- Excellent dimensional stability
- Low permeability
- Low wear and friction
- Stands up well to abrasion
- Good creep resistance
- Nozzle temperature: 320 - 360°C
- Bed temperature: 120 - 140°C
- Chamber temperature: 70 - 150°C
- Glass transition temperature (Tg): 160 - 165°C
- Continuous use temperature (CUT): 140 - 260°C
- Heat deflection temperature (HDT): 150 - 300°C
- Short term temperature exposure up to 300°C
Note the above values vary between pseudo-amorphous, semi-crystalline, and composite reinforced grades of PEKK. Contact our materials engineers for more details.
- Excellent resistance to chemicals
- High resistance to hydrolysis
- Excellent flame, smoke, toxicity (FST) properties
- Inherently flame retardant: UL 94 V-0 flammability rating
- Low level of smoke
When to Use PEKK for 3D Printing
Exceptional Properties & Printability
PEKK's capacity to maintain printability, even for large geometries, while providing the exceptional mechanical properties as well as chemical and temperature resistances, positions it as a versatile high-performance plastic.
Challenges with 3D Printing PEKK
Heated Build Chamber Required
PEKK’s elevated melting and glass transition temperatures require an enclosed, heated build chamber, such as the AON-M2’s, in order to achieve high quality prints that maintain dimensional accuracy.
Performance Comes at a Price
PEKK is a complex material to produce with comparable costs per kilogram to PEEK. Choosing an open filament 3D printer ensures that you have access to various top-tier suppliers, and competitive open market pricing for all materials.