Siraya Tech Flex TPU Air - Active Foaming 3D Printer Filament, White, 1kg | Lightweight, Adjustable Hardness 65A-82A, High-Speed Printing, for Wearables, Sports Gear & Soft Prototypes
Compare all 15 Siraya Tech TPU 1kg listings →
Is this a good price? Every Thursday we email the cheapest price per kg for each major material, plus our best buy of the week.
Product Details
- ADJUST HARDNESS WITH TEMPERATURE (65A-82A): Dial in your perfect flexibility with a single roll of filament. Print at lower temperatures for tough, durable parts, or increase the heat to activate the foaming process for a noticeably softer, lighter feel.
- UP TO 50% LIGHTER WITH ACTIVE FOAMING: Achieve massive weight savings without sacrificing elasticity or toughness. Perfect for RC parts, drones, cosplay, sports gear, and any application where lightweight durability is critical.
- EASY, CLOG-FREE PRINTING: Stop fighting your extruder. Our unactivated foaming component keeps the filament rigid before it hits the nozzle. This makes feeding incredibly reliable compared to passive foaming or ultra-soft filaments. Supports flow rates up to 12mm³/s for fast, smooth printing on most FDM setups.
- COMFORTABLE, FABRIC-LIKE TEXTURE: The foaming process creates a unique, premium matte surface with a soft-touch feel. It is ideal for skin-contact applications like wearable devices, watch bands, custom grips, insoles, and protective cases.
- 1KG SPOOL (MORE VALUE): Every spool of Siraya Tech Flex TPU Air contains a full 1kg (2.2 lbs) of filament, providing ample material for continuous printing and large-scale projects.
From the listing on Amazon.
View our other Siraya Tech listings here.
View our other TPU listings here.
Keep your filament dry, view our gear here.
Printing Siraya Tech TPU
Siraya Tech TPU in White runs on the TPU profile below, and this listing is a 1kg spool. TPU is best suited to flexible, rubber-like parts such as phone cases, gaskets, and vibration dampers. Brands and even individual spools vary, so treat these as starting points and run a quick temperature tower to lock in the sweet spot for your printer.
Ranges checked against Bambu Lab and Prusa data. Heat resistance is the heat deflection temperature (HDT). Read our TPU filament guide for bed adhesion, drying, troubleshooting, and material-specific tips.
Nozzle Compatibility
Flexible filament is not abrasive, so brass and hardened steel both work. Size matters more: the higher pressure in a small nozzle makes soft filament buckle in the extruder.
Based on Bambu Lab and Prusa guidance. More in our nozzle types guide.