Metal, Glass, and Ceramic 3D Printing Materials by The Virtual Foundry

Filamet™ Metal, Glass, and Ceramic 3D Printing Materials

Filamet™ comes in both 1.75mm and 2.85mm and print on any FDM/FFF 3D printer that accepts any brand of filament.
Metal/Glass/Ceramic
Load By Mass
Recommended NozzleSintering TemperatureSintering RefractoryFilament Density (g/cc)Use With a Filawarmer
Aluminum 6061
SDS | TDS
60.0 – 69.0%0.6mm Hardened Steel620°C (1148°F) Untested✽Untested1.20 – 1.50No
Bronze
SDS | TDS
86.0 – 90.0%0.6mm Hardened Steel885°C (1625°F)AL203,
Magnesium Silicate and
Sintering Carbon
4.10 – 4.50Yes
Copper
SDS | TDS
86.0 – 90.7%0.6mm Hardened Steel1052°C (1925°F)AL203,
Magnesium Silicate and
Sintering Carbon
4.50 – 5.00Yes
H13 Tool Steel
(Discontinued)

SDS | TDS
86.8%0.6mm Hardened Steel1232°C (2250°F)Steel Blend and
Sintering Carbon
3.56Yes
High Carbon Iron
SDS | TDS
75.0 – 80.0%0.8mm Hardened Steel1300°C (2372°F)
Untested
Steel Blend and
Sintering Carbon
2.90 – 3.85No
Inconel® 718
SDS | TDS
82.0 – 85.0%0.6mm Hardened Steel1232°C (2250°F)Steel Blend and
Sintering Carbon
3.50 – 4.30Yes
M300 Tool Steel
SDS | TDS
85.0% – 88.0%0.6mm Hardened Steel1232°C (2250°F)Steel Blend and
Sintering Carbon
3.50 – 3.65Yes
Pure Iron
(Discontinued)

SDS | TDS
80.0 – 82.0%0.6mm Hardened Steel1300°C (2372°F)
Untested
Steel Blend and
Sintering Carbon
2.81Yes
Rapid 3DShield Tungsten
SDS | TDS
88.0 – 94.0%0.6mm Hardened SteelN/AN/A7.80 – 9.20Do Not Use
Stainless Steel 17-4
SDS | TDS
80.0 – 85.0%0.6mm Hardened Steel1232°C (2250°F)Steel Blend and
Sintering Carbon
3.25 – 4.15Yes
Stainless Steel 316L
SDS | TDS
80.0 – 85.0%0.6mm Hardened Steel1232°C (2250°F)Steel Blend and
Sintering Carbon
3.45 – 3.55Yes
Titanium 64-5
(Discontinued)

SDS | TDS
78.0 – 82.0%0.6mm Hardened Steel1350°C (2462°F) UntestedUntested2.46No
Titanium 64-23
SDS | TDS
78.0 – 82.0%0.6mm Hardened Steel1350°C (2462°F) UntestedUntested2.50 – 2.85No
Pyrex® (Borosilicate)
SDS | TDS
66.0 – 72.0%0.8mm Hardened Steel843°C (1550°F)AL203 or
Magnesium Silicate
1.45 – 1.55No
Amaco 46-D
(Discontinued)

SDS | TDS
32.0 – 40.0%0.6mm Hardened Steel1232°C (2250°F)Any material that is refractory at the sinter temperature1.44Yes
Amaco White 25-D
(Discontinued)
40.0%0.6mm Hardened Steel1232°C (2250°F)Any material that is refractory at the sinter temperature1.50Yes
Amaco X-23
(Discontinued)
40.0%0.6mm Hardened Steel1232°C (2250°F)Any material that is refractory at the sinter temperature1.50Yes
Basalt Moon Dust
SDS | TDS
60.0 – 62.0%0.6mm Hardened Steel1050°C (1922°F) UntestedUntested1.60 – 1.75Yes
Porcelain
SDS | TDS
48.0 – 52.0%0.6mm Hardened Steel1232°C (2250°F) UntestedAny material that is refractory at the sinter temperature1.40 – 1.50Yes
Rapid 3DShield Boron Carbide
SDS | TDS
50.0 – 60.0%0.6mm Hardened SteelN/AN/A1.30 – 1.50Yes
Silicon Carbide
SDS | TDS
63.0 – 68.0%0.6mm Hardened Steel2200°C (3992°F) UntestedUntested1.88 – 1.95No
Zirconium Silicate (Zircopax®)
SDS | TDS
64.0 – 69.0%0.6mm Hardened Steel1500°C (2732°F) UntestedAny material that is refractory at the sinter temperatured2.10 – 2.19Yes

✽Aluminum’s Oxides pose a challenge in the sintering process and it needs more than just an oxygen-free environment. Aluminum and its alloys can only be effectively sintered in pure nitrogen or in a vacuum. Argon has been used in the past, but can create some bonding issues between particles. There are conditions that aluminum requires depending on the alloy and geometry. Simple aluminum alloys such as 2014 can be sintered in dry nitrogen, but the furnace needs to be tight (-50 dewpoint) and uniform (±1°F) temperature control. Sintering development for Aluminum 6061 is underway. Current information and updates can be found here, as well as in our Discord server here.

✝Oxygen is damaging to the metal sintering process. Sintering Carbon is used to combat this. Titanium is extra troublesome because it absorbs oxygen like crazy. It will pull oxygen out of a standard kiln’s insulation. Compounding the issue is titanium’s reactivity in the presence of oxygen and heat. The solution that we understand today is to use an all-metal kiln and a chamber thoroughly flooded with ultra high-purity argon.

Half spool of gray metal 3D printing filament, highlighting aluminum alloy material for sintering applications.
Bronze 3D printing filament on a spool, showcasing the material's texture and color, relevant to sintering processes and metal 3D printing applications.
Copper 3D printing filament displayed on a spool, showcasing its vibrant orange color, relevant to sintering processes in metal and ceramic 3D printing.
Gray H13 tool steel filament on a wooden spool, representing advanced materials for metal 3D printing and sintering processes.
High-carbon iron 3D printing filament on a spool, showcasing its dark texture, relevant for advanced sintering processes in metal and ceramic 3D printing.

Request other filament Materials

The Virtual Foundry can convert nearly any material into 3D printing filament. If you don’t see your preferred material here, contact us to ask about custom material development.

Sintering Kilns

Sinter printed metal and ceramic objects with the click of a button.

These systems allow Partner Innovators to sinter a number of The Virtual Foundry 3D printed materials including Ceramics, Bronze, Copper, 316L Stainless Steel, 17-4PH Stainless Steel, Inconel 718, and more in development!

How it works: 3D Print, Pack, Sinter, Metal! You “pack” the printed part in a Sintering Refractory Ballast and load the part in the Kiln. Select the parameters for sintering, click start and your parts will soon turn to functional metal objects! Follow the sintering instructions included with the kiln to turn your printed parts into metal.

Need Form 889 compliance? Contact us!

FireX Sintering Kiln

FireX Max Sintering Kiln

FireX Max Sintering Kiln with touchscreen controller, designed for sintering metal and ceramic 3D printed materials, featuring a compact red and silver design.

Price: $1,970*

Specs:
115v, 15A, 1800w, 50/60Hz, Single Phase
Max. Temperature: 1260°C / 2300°F
Controller: Mini Touchscreen Controller
Plug: 5-15P
UL Listed

Sintering Area / Chamber Volume:
8″ Width x 8″ Depth x 6″ Height /
203mm Width x 203mm Depth x 152mm Height

Kiln Outer Dimensions:
15″ Width x 20.5″ Depth x 14.5″ Height /
381mm Width x 521mm Depth x 368mm Height

Compatible Materials:
Bronze, Copper, H13 Tool Steel, Inconel® 718, M300 Tool Steel, Stainless Steel 17-4, Stainless Steel 316L, Pyrex® (Borosilicate)

This Kiln Ships via UPS
Only available in the USA
Shipping Weight: 56lbs

Current Lead Time: 8–12 Weeks
*Prices do not include shipping. Purchase here.

Sintering kiln with touchscreen controller, open lid, and metal body, designed for high-temperature processing of metal and ceramic materials.

Price: $5,135*

Specs:
240v, 27.8A, 6660w, Single-Phase / 208v, 26.7A, 5550w, Single-Phase
Max. Temperature: 1288°C/2350°F
Controller: KilnMater Touchscreen (KMT)
Plug: 6-50P
UL Listed

Sintering Area / Chamber Volume:
16.5″ Diameter x 18″ Depth /
419mm Diameter x 457mm Depth

Kiln Outer Dimensions:
22.5″ Diameter x 32″ Height /
572mm Diameter x 813mm Height

Compatible Materials:
Bronze, Copper, H13 Tool Steel, Inconel® 718, M300 Tool Steel, Stainless Steel 17-4, Stainless Steel 316L, Pyrex® (Borosilicate)

This Kiln Ships via Freight
Only available in the USA
Shipping Weight: 145lbs

Current Lead Time: 8–12 Weeks
*Prices do not include shipping. Contact us for a shipping quote.

Refractory Ballasts

Sintering refractory ballast powder, Al2O3, spilling from a container, illustrating materials used in metal 3D printing sintering processes.

SDS

Used for: Debinding Bronze and Copper Filamet™.

Key advantages: Al2O3 can be reused many times.

Particle Size: 100 mesh

Max Temperature: 1600°C

Sintering refractory ballast powder spilling from a metal container, related to magnesium silicate materials for 3D printing applications.

SDS

Used for: Sintering Bronze and Copper Filamet™ and debinding and sintering Pyrex Filamet™.

Key advantages: Easily moves when the part shrinks and it leaves a superior post-sinter finish. Magnesium Silicate can be reused many times.

Particle Size: Submicron

Max Temperature: 1250°C

Sintering refractory ballast powder spilling from a can, showcasing a fine, black material relevant for metal 3D printing applications.

SDS

Used for: Debinding and sintering Inconel 718, Stainless Steel 17-4, and Stainless Steel 316L Filamet™.

Key advantages: Antioxidant in the stainless steel sintering process. Steel Blend can be reused many times. Steel Blend changes color to a pale yellow-orange color.

Particle Size: Submicron to 100 mesh

Max Temperature: 1600°C

Sintering carbon powder spilling from a metallic container, relevant to 3D printing materials and sintering processes.

SDS

Used for: Keeping oxygen away from your parts during sintering. Only use with metal Filamet™. Not necessary for sintering in a vacuum or an inert atmosphere.

Key advantages: Prevents oxygen from reaching your part during sintering

Particle Size: Granular

Max Temperature: 2800°C