Zetamix Alumina

Zetamix by Nanoe

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299,00 €
299,00 €

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Filament with ceramic powder that allows to obtain alumina parts after debinding and sintering processing.

Nanoe is a renowned French company founded in 2008 and specialised in the production of innovative materials. It stands out mainly in the production of ceramic powders, with a production capacity of more than 100 tons of high purity ceramic powder per year.

Taking advantage of the high degree of know-how in the field of ceramics, in 2018 they created the Zetamix brand, the first brand of filaments with technical ceramics aimed at producing all-ceramic parts in an accessible and affordable way.
It currently has three ceramic filaments for technical applications: White Zirconia, Black Zirconia and Alumina.

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Image 1: Comparison of Zetamix ceramic filaments. Source: Nanoe

Zetamix Alumina is a filament consisting of 83% by weight of alumina powder and 17% by weight of binder. Alumina is the most common aluminium oxide and the most widely used in industry and engineering applications. It is mainly noted for its high heat resistance and melting point, which makes it a refractory material suitable for high temperature applications.


Image 2: Gas collector printed with Zetamix Alumina and sintered. Source: Nanoe

Due to its high hardness (9 Mohs) and abrasion resistance, it is also often used in abrasive elements and is an economical alternative to synthetic diamond.

However, one of the most interesting applications in the field of 3D printing is the production of catalytic filters or air purifiers. The high capacity of alumina to absorb water or to act as a catalyst for certain chemical reactions such as the Claus process, together with the capacity of 3D printing to obtain parts with a high surface to volume ratio, make it an economical and efficient technology for the production of catalytic filters.


Image 3: Filter printed with Zetamix Alumina filament. Source: Nanoe

Zetamix ceramic filaments make it possible to obtain fully ceramic parts easily in three steps:

  • Printing: Zetamix ceramic filaments can be easily printed on virtually any direct extruder printer, as they require printing temperatures between 150 and 180 ºC and a base temperature of 40 ºC.


Image 4: impression of a ceramic piece. Source: Nanoe
  • Debinding: Debinding consists of two stages, chemical debinding in acetone using an ultrasonic bath such as Zetadebinder and thermal debinding prior to sintering.
  • Sintering: Finally, the part is sintered by heat treatment to obtain a completely ceramic part.

Alumina parts

Image 5: Parts printed on Zetamix Alumina and sintered. Source: Nanoe

Ceramic printing has been a great challenge due to its complexity and high cost. Thanks to Zetamix ceramic filaments, it is possible to obtain complex all-ceramic parts in an economical and simple way.

It is recommended to carefully follow the design guide available in the download tab when designing the parts to be made with Zetamix Alumina.


When printing, the following parameters must be applied:

Printing temperature: 150 ºC
Base temperature: 40 ºC
Nozzle size: 0.4 - 1.0 mm (abrasion resistant)
Coating height: 0.3 - 0.1 (0.15 recommended)
Print speed: 20 - 35 mm/s
Shrinkage: 1 mm to 20 mm/s
Perimeters: At least 2
Filling: 5 % - 100 % Filling: 5 % - 100 % Filling: 5 % - 100 % Filling: 5 % - 100
Top and bottom wall thicknesses: At least 1 mm
Substrates: Supports: Supports in the same material and in soluble materials.
Adhesion to backing: Glass backing and Magigoo adhesive recommended.

Zetamix ceramic filaments are only compatible with direct extruders. The spool should be placed on top of the printer so that the path between the spool and the extruder is as straight as possible.

It is advisable to reduce the extruder tension to a minimum to prevent the filament from deteriorating.


Debinding consists of two stages, a chemical and a thermal stage.

Chemical debinding: The part must be treated for at least 2 hours in an ultrasonic bath with acetone at 40 ºC. Afterwards, the piece must be left to air dry for at least 2 hours. If the treatment has been successful, the piece should lose 5% of its weight.

Heat debinding: The pieces must be placed in a crucible with refractory powder to support the shrinkage of the piece and to serve as a support during the process. A heat treatment should then be applied consisting of heating the parts from 20 ºC to 500 ºC at a rate of 8 ºC/hr. For small parts, the debinding time can be reduced by applying the following heat treatment:

Initial TemperatureFinal TemperatureSpeed
20 125 35 ºC/h
125 200 50 ºC/h
200 215 22 ºC/h
215 250 11 ºC/h
250 280 20 ºC/h
280 320 8 ºC/h
320 510 24 ºC/h


After debinding, the part must be sintered by applying the following heat treatment:

  • Heat from 20 ºC up to 1550 ºC at a speed of 50 ºC/h.
  • Hold at 1550 ºC for 2 hours
  • Cool to room temperature at a rate of 100 ºC/h
General information
Manufacturer Nanoe (Zetamix)
Material Alumina powder and thermoplastic binder 
Format Spool of 500 g
Density 2.5 g/cm3
Amount of metal (volume) 52 %
Amount of metal (mass) 83 %
Diameter of filament 1.75 or 2.85 mm
Diameter tolerance -
Filament length ±83 m (Ø 1.75 mm-0.5Kg)
±31 m (Ø 2.85 mm-0.5Kg)
Color White
RAL/Pantone  -
Print settings
Printing temperature 150 ºC
Temperatura de base/cama 40 ºC 
FilaWarmer temperature (1) -
Print bed temperature -
Chamber temperature 100%
Print speed 30 mm/s
Nozzle diameter ≥0.4 mm abrasion resistant
Recommended infill 5 %-100 %
Sintering properties
Container Refractory Crucible
Refractory powder Alumina
Maximum temperature 1550 ºC
Mechanical properties
Izod impact strength -
Charpy impact strength -
Elongation at break -
Tensile strength -
Tensile Modulus -
Flexural strength -
Flexural modulus -
Surface hardness -
Thermal properties
Softening temperature -
Melting temperature -
Specific properties
Transparency  Opaque
Radiation protection (without sintering) No
Additional Information
HS Code 8108.9060
Diameter coil (outer) -
Diameter coil (inner hole) -
Coil Width -

* 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.


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