NinjaTek NinjaFlex TPU 85A Filament – Midnight Black

NinjaTek NinjaFlex TPU 85A is one of the most recognized flexible 3D printing materials in the industry, trusted by makers, engineers, product designers, and manufacturers for its exceptional elasticity, durability, and reliability. This Midnight Black 1.75mm filament delivers the flexibility of rubber-like materials while maintaining excellent layer adhesion and consistent print quality.

With a Shore hardness of 85A, NinjaFlex provides an ideal balance between flexibility and strength, allowing users to create highly durable parts that bend, stretch, compress, and recover without cracking. Whether you're producing wearable products, protective covers, vibration dampeners, gaskets, seals, or functional prototypes, NinjaFlex offers the performance required for demanding real-world applications.

Supplied on a 0.5kg spool, this premium TPU filament is engineered for dependable results across a wide range of compatible direct-drive and flexible-filament-capable FDM 3D printers.

Key Features & Benefits

• Premium NinjaTek NinjaFlex TPU 85A formulation
• Highly flexible rubber-like material
• Shore hardness of 85A
• Excellent abrasion and wear resistance
• Outstanding layer adhesion
• Exceptional elongation and flexibility
• Strong resistance to repeated bending and compression
• Durable functional performance in demanding environments
• Low shrinkage during printing
• Excellent impact resistance
• Deep Midnight Black finish for professional-looking parts
• Suitable for prototyping and end-use applications

Printability & Performance

NinjaFlex has earned a strong reputation for delivering reliable flexible printing performance while maintaining excellent durability and mechanical strength.

When properly configured, prints exhibit:

• Excellent layer bonding
• Smooth and consistent extrusion
• High elasticity and recovery
• Strong resistance to cracking and tearing
• Excellent vibration absorption
• Good surface finish with minimal warping
• Long-term flexibility without becoming brittle

Compared to rigid materials such as PLA or PETG, NinjaFlex allows printed parts to flex repeatedly while maintaining structural integrity. Its abrasion resistance also makes it well suited for parts exposed to friction and repeated use.

For best results, slower print speeds and optimized filament paths are recommended, especially on Bowden-style systems. Direct-drive printers generally provide the easiest printing experience with flexible TPU materials.

Typical Applications & Use Cases

NinjaFlex TPU is ideal for applications requiring flexibility, impact absorption, and long-term durability.

Common applications include:

• Phone cases and device protection
• Wearable products
• Gaskets and seals
• Vibration dampeners
• Protective covers
• Soft-touch grips and handles
• Automotive components
• Sporting equipment accessories
• Robotics components
• Flexible hinges
• Medical and ergonomic prototypes
• Footwear and custom inserts
• RC vehicle tires and accessories

Its combination of flexibility and toughness makes it a popular choice for both functional engineering projects and creative consumer products.

Material & Compatibility Information

NinjaFlex TPU 85A is designed for FDM/FFF 3D printers that support flexible filament materials.

Compatible platforms may include:

• Bambu Lab printers
• Prusa printers
• Creality direct-drive systems
• Ultimaker printers
• Raise3D systems
• QIDI printers
• FlashForge printers
• Other flexible-filament-capable FDM printers

Recommended printing practices include:

• Moderate print speeds
• Reduced retraction settings
• Proper filament path control
• Clean nozzle and feeding system
• Adequate bed adhesion surface

Direct-drive extruders typically provide the most reliable results, although many Bowden systems can successfully print NinjaFlex when properly tuned.

Why Users Choose NinjaFlex TPU 85A

NinjaFlex has become one of the industry's benchmark flexible filaments because it combines exceptional flexibility with real-world durability. Unlike many flexible materials that can be difficult to print or prone to tearing, NinjaFlex offers a proven balance of elasticity, toughness, and print consistency.

Engineers appreciate its durability, designers value its flexibility, and makers rely on its dependable performance for projects that require more than rigid plastics can provide.

Whether you're creating protective products, functional prototypes, industrial components, or consumer goods, NinjaFlex TPU 85A delivers the flexibility and reliability required for professional-quality results.

Create Flexible Parts That Perform

Choose NinjaTek NinjaFlex TPU 85A Midnight Black filament for durable, flexible, and impact-resistant 3D prints. From wearables and protective accessories to industrial components and functional prototypes, NinjaFlex provides the performance, elasticity, and reliability trusted by professionals and makers worldwide.