NinjaFlex^®

The Market Leading Flexible Filament

NinjaFlex flexible filament leads the industry thanks to its superior flexibility and longevity compared to non-polyurethane materials. Its consistency in diameter and ovality (roundness) outpaces other polyurethane materials.

Made from a specially formulated thermoplastic polyurethane (TPU) material, this patented technology boasts a low-tack, easy-to-feed texture. The result is uniquely flexible, strong prints ideal for direct-drive extruders.

Suggested Applications: Seals, gaskets, plugs, leveling feet, protective applications.

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3mm available in .75kg (1.6lb) & 2.2kg (5lb) spools
1.75mm available in .5kg (1.1lb) & 2.2kg (5lb) spools

Key Features

► Shore Hardness = 85A
► Truly flexible (no fill or layer manipulation required to achieve performance)
► 660% elongation allows for repeated movement and impact without wear or cracking
► Polyurethane composition allows for excellent vibration reduction
► Patented low friction exterior allows for smooth feeding
► Abrasion resistance 20% better than ABS and 68% better than PLA
► Consistent diameter and material properties providing reliable, high quality prints
► Chemical resistant to many materials, including naphtha, ASTM Oils #1-3, petroleum and freon
► Adheres to all standard build platforms without glue or tape
► REACH and RoHS 2002/95/EC Directive compliant

Printing Guidelines

Extruder Temperature: 225°C – 235°C
Platform Temperature: Room temperature – 40°C
Glue and/ or blue painters tape is suggested if not using a heated bed.

Print Speed:
Top and bottom layers: 10-20 mm/ sec (600-1200 mm/ min)
Infill speeds: 15-35 mm/ sec (900-2100 mm/ min)
Layer 2+ use cooling fan if available.

Tech Specs

Tips & Tricks

Safety:
We recommend printing in a well-ventilated area for use with all of our materials. TPE’s are capable of releasing small amounts of fumes at high temperatures.

Finishing parts:
Best results are achieved using a dremel or a hot knife for smoothing rough surfaces. It is also tolerant to cutting and light drilling as required for an application.

Connecting printed parts:
Welding is the best option. Plastic welders, soldering irons, wood burners or heat guns are ideal. NinjaFlex will also bond to other plastics using the same method.

Injection molding:
NinjaFlex is available in pellet form and is useable for injection molding in addition to pellet extrusion.

Bridging:
NinjaFlex is not ideal for bridging, though it can handle some small areas in unsupported applications.

Water resistance:
Occasional contact with water will have no adverse effect on NinjaFlex, but long-term exposure will degrade the material to the point in which its elastic properties will be reduced.

UV Resistance:
NinjaFlex is not recommended for long-term continuous outdoor use as it has no UV stabilizer. However, it does boast higher UV performance over ABS & PLA . Short term usage is suitable, with an estimated 4-6 months before seeing any degradation.