Siraya Tech Roamr TPU Air HR 85A Flexible 3D Filament, High Resilience Foaming, 68A-85A Variable Hardness, Lightweight Matte Structural TPU for Shoe Outsoles & RC Parts (800g, Noir)
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Product details
| Management number | 211351554 | Release Date | 2026/04/04 | List Price | $20.64 | Model Number | 211351554 | ||
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- 57% Ultralight Weight & Structural Support - Engineered for the high-stress demands of functional footwear, Roamr 85A utilizes active micro-foaming technology to achieve up to a 57% weight reduction. It provides the perfect strength-to-weight ratio, offering a lightweight "air-infused" matrix without sacrificing the toughness needed for shoe outsoles and load-bearing frames.
- High Rebound & Variable Hardness - Experience a responsive, snappy gait with a rebound resilience of 48%, It mimics the firm, supportive feel of professional athletic midsoles, preventing the "sinking" sensation common in softer filaments during long walks. Through Variable Hardness Control, adjusting your printing temperature allows you to dial in a surface hardness between 68A and 85A. This enables multi-density zones in a single part—plush for impact zones and firm for arch support.
- ENHANCED PRINTABILITY & STABILITY – Say goodbye to flexible filament jamming. With a Shore 85A hardness, this filament is stiffer and easier to feed than softer variants. It offers superior compatibility with direct-drive extruders, including Snapmaker U1 & Entire Bambu Lab Lineup (Like X1C/P1S/H2D/H2C), ensuring consistent, clog-free extrusion for large prints.
- INDUSTRIAL GRADE DURABILITY – Built to last outdoors and on the street. Roamr 85A offers excellent abrasion resistance and shape retention under repeated compression. It is the ideal choice for printing durable shoe soles, protective bumpers for drones/RC cars, and heavy-duty mechanical gaskets.
- PROFESSIONAL MATTE FINISH – Achieve a high-end, consumer-ready look straight off the print bed. The micro-foaming action creates a fine matte texture that effectively hides layer lines and eliminates the cheap "plastic shine" of traditional TPU, making your prototypes look like finished manufactured products.
3D Printing Filament
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