Ninja Flex flexible filament leads the industry thanks to its superior flexibility and longevity compared to non-polyurethane materials. Its consistency in diameter and orality (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. 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.