Datasheet

Test Specimen Details (by ASTM Test Number)
All printed specimens were created using the TAZ5 printer 0.75mm nozzle.
For ASTM D638 tests, the extrusion multiplier is 1.05.
Specic Gravity (D792): Results determined by nature of material.
Moisture (D570): 30g of lament tested in moisture analyzer evaluated at
125°C until the mass change is < 0.005% over 1 minute.
Technical Specications
NinjaFlex
®
3D Printing Filament
NinjaFlex exible lament leads the industry with superior exibility and longevity compared to non-polyurethane mate-
rials. Its consistency in diameter and ovality (roundness) outpaces other polyurethane materials. Made from a specially
formulated thermoplastic polyurethane (TPU) material, this patented technology contains a low-tack, easy-to-feed
texture. The result is uniquely exible, strong prints ideal for direct-drive extruders.
Flexible Polyurethane Material for FDM Printers
General Properties Test Method Imperial Metric
Specic Gravity ASTM D792 1.19 g/cc 1.19 g/cc
Moisture Absorption - 24 hours ASTM D570 0.22 % 0.22 %
Mechanical Properties
Tensile Strength, Yield ASTM D638 580 psi 4 Mpa
Tensile Strength, Ultimate ASTM D638 3,700 psi 26 Mpa
Tensile Modulus ASTM D638 1,800 psi 12 Mpa
Elongation at Yield ASTM D638 65% 65%
Elongation at Break ASTM D638 660% 660%
Toughness (integrated stress-strain curve; calculated stress x strain) ASTM D638 12,000 in·lbF/in
3
82.7 m*N/m
3
x10
6
Hardness ASTM D2240 85 Shore A 85 Shore A
Impact Strength (notched Izod, 23C) ASTM D256 2.0 ft.lbf/in
2
4.2 kJ/m
2
Abrasion Resistance (mass loss, 10,000 cycles) ASTM D4060 0.08 g 0.08 g
Thermal Properties
Melting Point (via Differential Scanning Calorimeter) DSC 420° F 216° C
Glass Transition (Tg) DSC -31° F -35° C
Heat Deection Temperature (HDT) @ 10.75psi/ 0.07 MPa ASTM D648 140° F 60° C
Heat Deection Temperature (HDT) @ 66psi/ 0.45 MPa ASTM D648 111° F 44° C
NinjaTek lament is capable of being printed by a variety of printers in a variety of congurations. This specication sheet gives results as they pertain to the dened test standard and specimen details. Different slicing and/or
printing congurations, test conditions, ambient environments, etc. may result in different results.
Impact Strength and Heat Deection Temperature results were both provided by an accredited university testing laboratory. Specic Gravity and Hardness are innate characteristics of the material. Moisture Absorption, values
associated with the Tensile Strength tests, Melting Point and Glass Transition data were prepared by Fenner Drives, Inc.
NinjaTek makes no warranties of any type, express or implied, including, but no liited to, the warranties of tness for a partuclar application.
NinjaTek.com [phone] [e-mail]
Tensile (D638): Dogbone Style IV, 100% ll, diagonal line ll.
Dimensions: 5mm thick. See drawing for other dimensions.
Hardness (D2240): Solid testing block.
all dimensions in mm.
Dimensions:
2”L x 2” H x 0.75” W
2016_04_NF_MSPEC
Impact (D256): Un-notched test specimen,
notch added post print by testing facility.
Abrasion (D4060): Rectanglar block sized to t tabor abrader.
HDT (D648): Bar shape.
Dimensions:
7.5” L x 0.125” H x 0.5” W
Dimensions:
5” L x 0.5” H x 0.5” W
Dimensions:
2.5 “ L x 0.25” H x 0.5” W