Siraya Tech releases Rebound PEBA Air
A flexible 3D printing filament engineered for advanced performance applications
Siraya Tech, a Californian 3D printing materials company, has released Rebound PEBA Air, a flexible 3D printing filament engineered for advanced performance applications. Built upon the proven foundation of Rebound PEBA 95A, this new material introduces dynamic active foaming capability, allowing users to fine-tune hardness, softness, and part weight by simply adjusting the print temperature.
By combining a Nylon (PA) backbone with soft TPE blocks and proprietary active foaming technology, the material delivers a rare combination of mechanical strength, ultra-high rebound, and dynamic tunability.

Siraya Tech’s prior release of TPU Air laid the groundwork for lightweight foaming flexibility. With Rebound PEBA Air, that innovation evolves further – delivering better rebound, greater structural integrity, and expanded use cases for engineering-grade applications.
Key features include dynamic hardness and rebound control (adjust print temperature (235–270°C) to dial in desired softness or firmness); extreme lightweighting with active foaming (reduce part weight by up to 50% while maintaining high strength); industrial-grade durability and chemical resistance (handles fatigue, impact, and exposure to oils or solvents with confidence); matte finish and smooth, jam-free printing (PEBA base enhances extrusion flow; foaming yields soft-touch matte finish); and high-speed compatible (performs reliably on most FDM 3D printers).
Rebound PEBA Air is built for dynamic parts that must be both soft and strong – well-suited for real-world end-use components requiring rebound, resilience, and low weight. Applications include performance sports gear (midsoles, custom orthotics, and protective padding); robotics and drones (lightweight bumpers, landing gear, and grippers); functional prototypes (shock-absorbing and fatigue-resistant test components); automotive parts (vibration dampeners and impact-resistant housings); and wearables and ergonomics (flexible enclosures and body-contacted elements).




