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Flexfill TPU 98A

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Brand: Fillamentum

Condition: New product

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29,17 €

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Flexible material with a certain elasticity, UV resistance and high resolution.

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Specifications

Flexfill 98A TPU (Thermoplastic Polyurethane) 3D printer filament is a flexible material with a certain elasticity. It is a filament very similar to the PLA Soft but with added properties such as resistance to greases, oils and solvents that make it more useful for industrial applications. In addition another advantage with respect to the PLA Soft is its greater adhesion between layers.

Another of the flexible filaments resembling this TPU filament is the Filaflex-TPE (Thermoplastic Elastomer) filament which due to its greater flexibility and elasticity presents a greater complexity of impression than the own Flexfil 98A TPU (1.75mm or 2.85mm). The Flexfil 98A (Hardness Shore 98A) TPU 3D filament is harder than the Filaflex-TPE (Shore Hardness 82A) and very similar to the Soft-Flexible PLA (Shore Hardness 92A). This increased stiffness of the Flexfill 98A TPU filament makes it easier to print on 3D printers without the adapted extruder which normally causes problems when printing very flexible filaments such as TPE. In spite of this, TPE filaments such as Filaflex are probably still the most used flexible filaments due to their greater similarity to rubber and their greater elasticity and softness, although it should be noted that the Flexfill 98A filament is added in order to achieve a greater smoothness.

Other major advantages of a TPU filament such as the Flexfill 98A versus another TPE filament such as the Filaflex are, for example, higher abrasion and UV resistance, better retention of elastic properties at lower temperatures and higher print resolution than the TPE so it is more suitable for technical parts that need more accuracy.

As for the printing temperature, bed and density (1.20-1.22 g/cm3), both the Flexfill 98A and the Filaflex are very similar, but the main difference is that with the Flexfill 98A TPU filament can be printed at a faster speed (20-30mm/s) than with the Filaflex (15 mm/s).

In the following table you can see the comparison between the different materials with some flexibility that exist in the market:

	TPE 70A Filaflex	TPE 82A Filaflex	TPE 90A Flexfill	TPU 92A Flexfill	TPU 93A Smartfil	TPE 96A Flexfill	TPU 98A Flexfill
Tensile strength (MPa)	32	45	5	49	40	5	53.7
Elongation at break	900 %	600 %	250 %	-	-	150 %	318 %
Absorción humedad					-
Chemical resistance	Solvent Acetone Fuel	Solvent Acetone Fuel	Water Acid Alcohol Alkali	Polish Oil	Polish Oil Solvent	Water Acid Alcohol Alkali	Polish Oil
Contact food and skin	Not recommend.	Not recommend.	Certificate	Not recommend.	Not recommend.	Reliable	Not recommend.
Permeability gases					-

Table 1: Comparison of properties of the flexible filament range

If you are looking for flexible and elastic parts but you have not been able to print them with a TPE filament, this is the ideal filament. Also in printers with two heads you can use the Flexfill to add an additional layer on the rigid base material to create a surface that is soft to the touch.

Printed with Flexfill 98A Black

Elongation at break (%)	318
Surface hardness	6
Softening temperature (ºC)	90
Flexibility	Flexibility
Machinable	Machinable
Abrasion resistance	Abrasion resistance
Vibration resistance	Vibration resistance
Chemical resistance	Chemical resistance
Hide color variations	(Hide color variations)

It is advisable to use Magigoo, 3DLac or BuildTak in the base of the 3D printer so that the first Flexfill 98A TPU filament layer adheres correctly. As for the ideal bed temperature is between 30 and 50 °C, the recommended printing temperature is between 200-220 °C and the recommended printing speed is 20-30 mm/s. In case of problems of printing due to sliding of the filament in the head is advised not to use retraction and increase the flow in case the extrusion is intermittent, also in small parts it is also advisable to print always without retraction and with fan of the driven layer.

General information
Manufacturer	Fillamentum (Czech Republic)
Material	TPU Flexfill 98A (Thermoplastic polyurethane)
Format	Pack of 50g Spool of 500g
Density	1.23 g/cm³
Diameter of filament	1.75 or 2.85 mm
Diameter tolerance	±0,10 mm
Filament length	±169 m (Ø 1.75 mm-0.5 kg) ±64 m (Ø 2.85 mm-0.5 kg)
Colors	"Traffic Black", "Natural", "Sky Blue", "Traffic red","Traffic yellow", Pistacho Green,"Vertigo Grey"
RAL	RAL 9017, -, RAL 5015, RAL 3001, RAL 1003, -, -.
Print settings
Printing temperature	220-240ºC
Print bed temperature	50-60ºC
Chamber temperature	Not necessary
Cooling fan	Recommended
Recommended printing speed	20-30 mm/s
Mechanical properties
Izod impact strength	-
Charpy impact strength	-
Elongation at break (DIN 53504)	318%
Tensile strength (DIN 53504)	53.7 MPa
Tensile Modulus (ISO 6721)	444 MPa
Flexural strength	-
Flexural modulus	-
Surface hardness	Shore 98A / Shore 60D
Abrasion resistance (ISO 4649)	23 mm³
Thermal properties
Softening temperature (ASTM E2092)	90ºC
Melting temperature	215ºC
Specific properties
Transparency	-

Additional Information
HS Code	3916.9
Diameter coil (outer)	200 mm
Diameter coil (inner hole)	55 mm
Coil width	50 mm

* The typical values detailed in this table should be considered as a reference. Actual values may vary depending on the 3D printer model used, part design and printing conditions. We recommend confirming the results and final properties with own tests. For more information you should consult the technical data sheet of the product.