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  • Filamet™ 6061 aluminum View larger

    Filamet 6061 aluminum

    The Virtual Foundry

    New product

    6 Items

    314,90 €tax excl.
    381,03 €tax incl.

    Ask for information

    With 82 % metal, total metal parts with the properties of 6061 aluminum are achieved.

    Filamet™ 6061 aluminium from The Virtual Foundry (TVF) is an innovative filament composed of more than 65 % metal and the rest by PLA. The Virtual Foundry is an American company formed by great experts in the sector of molten metal, which have been constantly working since 2014 to improve and grow its range of filaments and accessories for 3D FDM metal printing. Its products are oriented to solve and simplify problems through innovative metallic materials for 3D FDM printers of any kind.

    Gear made of 6061 aluminium without sintering

    Image 1: Gear made of 6061 aluminium without sintering. Source: The Virtual Foundry

    Aluminum is a non-ferrous metal abundant in nature, forms 8 % of the earth's crust. This metal has a large number of outstanding properties: high corrosion resistance, low density, good conductor of electricity and heat, easy to machine, economical and high mechanical resistance in its alloyed forms. All these properties have led aluminum to be one of the most used metals by industry, only surpassed by steel. Its applications are so diverse that one could say that all products manufactured and used by industry use aluminum: mirrors, cans, tetrabriks, power lines, heat diffusers, cryogenic containers, etc. One of its most common alloys is Al6061, an aluminum hardened mainly with magnesium and silicon, which shows ease of being welded, good mechanical properties with a really low density. This aluminum alloy is frequently used for the construction of all types of vehicles (aircraft, yachts, cars and high performance bicycles), manufacturing of food containers and all kinds of objects that need a good balance between resistance and weight.

    The Virtual Foundry has been the pioneer in developing metallic filaments for 3D printing after many years of research and development. The great competitive advantage developed is that to obtain the pure metal parts it is only necessary to print the piece and sinter it in an oven. Other manufacturers that have tried to develop metallic filaments need to do one more process (prior to sintering in the furnace) which is the debinding that consists of a chemical process to separate the binder polymers from the metal. Therefore, it can be concluded that The Virtual Foundry is the pioneer and the benchmark in 3D metal FDM printing, obtaining a fairly simple process with results never seen so far in the world of metal fabrication.

    Currently, a large list of industry sectors are using The Virtual Foundry filaments: 3D printer manufacturers, biomedical innovation, jet engine development, radiation shielding, space exploration, nuclear energy, dental, artists or fashion design. A remarkable application is the manufacture of a drill with internal hot water heating, for drilling in the Antarctic. With the Filamet™ copper it has been manufactured, very easily and at a low cost, a drill with an internal structure extremely difficult to machine or mold has been manufactured very easily and at a low cost. Another notable application is the printing of containers for radiation shielding with tungsten Filamet™. These types of containers are used to transport reactive medicines without having to resort to lead containers (toxic). Thanks to the density of tungsten, 1.6 higher than lead, this filament is ideal for creating any type of replacement part made from lead.

    Filamet™ 6061 aluminium is a filament formed by base metal and a biodegradable and ecological polymer (PLA). This material is free of exposed metal particles and volatile solvents that can be released during printing. Formed by more than 65% 6061 aluminium and the rest by PLA, this material is extremely simple to print, since its printing properties are similar to those of the PLA, which allows any user of a FDM 3D printer create parts with this filament, without the need to buy expensive industrial 3D FDM metal printers, such as Markforged Metal X. With Filamet™ 316L properties similar to those possible with DMLS technology are achieved but with certain limitations. Due to the need to sinter the printed pieces with this filament, where the PLA is removed, the pieces have porosity, loss of volume and non-isotropy. DMLS 3D printers manage to print totally solid parts (similar to the foundry), in great detail, layer heights of 0.02 mm and without the need for post-processing, the only disadvantage compared to Filamet™ 3D FDM printing the cost of: material, manufacturing and the printers themselves.

    Rotor manufactured with  Filamet™ 6061 aluminium without sintering

    Image 2: Rotor manufactured with  Filamet™ 6061 aluminium without sintering. Source: The Virtual Foundry

    Due to its large metal content (67 %), it is necessary to place the filament inlet as aligned as possible with the extruder. Once a piece is printed, it is necessary to carry out the sintering process, in an open environment or in a vacuum or inert environment, to eliminate the polymer (PLA), taking into account that sintering values must be adjusted depending on the geometry and oven model. The product that is obtained is totally metallic, with the real properties of the metal as electrical conductivity, post-processed by sanding and polishing or even welding union; but with a certain porosity and a reduction in volume due to the loss of PLA. To know more about the whole process of printing, sintering and post-processing you should visit the "Tips for Use" section.

    Users who do not have an kiln with the necessary properties to sinter the printed parts with the Filamet™ 6061 aluminium and get the final properties of this metal, can contact us and we will assess its viability through our collaborators with ability to perform the post-processing necessary to obtain the desired final result.

    Machinable Machinable
    Fatigue resistance Fatigue resistance
    Electrical conductivity Electrical conductivity
    Thermal conductivity Thermal conductivity
    Metallic content Metallic content
    Detectable Detectable
    Moisture resistance Moisture resistance
    Hide color variations (Hide color variations)


    Due to the high quantity of metal, the filament can be broken more easily than a conventional PLA filament. To avoid breakage during printing, it is recommended to use Filawarmer, an accessory that preheats the filament before printing to reduce its fragility and increase its malleability.

    It is necessary to use a hardened nozzle of at least 0.6 mm diameter to avoid jamming.

    It is recommended to print on a glass base and use an adhesive such as Magigoo. It is not possible to print directly on PEI bases, as the part could be welded to the base and the base would be damaged. If you have a PEI base, we recommend applying a layer of Blue Tape.

    Printing at low speeds of up to 30 mm/s is recommended.


    This filament is in an experimental phase, so an optimised sintering procedure is not yet available.

    General information
    Manufacturer The Virtual Foundry (USA)
    Material 6061 aluminium (67 %) + PLA 
    Format Spool of 500 g
    Density 4.5 g/cm3
    Amount of metal (volume) 66 %
    Amount of metal (mass) 67 %
    Diameter of filament 1.75 or 2.85 mm
    Diameter tolerance
    Filament length ±46 m (Ø 1.75 mm - 0.5 kg)
    ±17 m (Ø 2.85 mm - 0.5 kg)
    Color Grey
    RAL/Pantone  -
    Print settings
    Printing temperature 205 - 215 ºC
    Temperatura de base/cama 50 ºC (optional)
    FilaWarmer temperature Do not use
    Print bed temperature -
    Chamber temperature -
    Print speed 30 mm/s
    Nozzle diameter ≥0.6 mm stainless steel
    Recommended infill 100 %
    Sintering properties
    Container -
    Refractory powder -
    Maximum temperature -
    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 55 ºC
    Melting temperature -
    Specific properties
    Transparency  Opaque
    Radiation protection (without sintering) No
    Additional Information
    HS Code 7603.10
    Diameter coil (outer) 300 mm
    Diameter coil (inner hole) 65 mm
    Coil Width 55 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.


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