Lunar / Mars Regolith Simulant Filament

Basalt Moon Dust Filamet™ — 1.75 mm, 0.5 kg

Print with terrestrial basalt — the closest Earth-bound analogue to lunar and Martian regolith — on the FDM printer you already own. Engineered for university and NASA-affiliated In-Situ Resource Utilisation (ISRU) research, this 60–62% basalt Filamet™ lets aerospace teams simulate off-world habitat construction at desktop scale.

60–62% Basalt Lunar Regolith Simulant Mars Surface Analogue ISRU Research Space Architecture
The Virtual Foundry Basalt Moon Dust Filamet 1.75mm 0.5kg spool

Print with the closest terrestrial analogue to lunar and Martian soil

Basalt Moon Dust Filamet™ loads 60–62% terrestrial basalt — mineralogically the closest readily available analogue to lunar mare and Martian surface regolith — into a printable polymer matrix. Aerospace research groups use basalt simulants to model how off-world construction, sintering and ISRU processes will behave when the only available feedstock is the dust under the lander.

From NASA-affiliated university programs to ESA collaborators and private lunar habitat startups, basalt simulant is the standard test material for prototyping habitats, landing pads, radiation shields and tooling that must one day be built from regolith on the Moon or Mars. With Filamet™ that workflow runs on FDM hardware that fits on a graduate student’s desk.

Why basalt simulant matters for space. Lunar mare regolith is dominantly basaltic; Martian surface dust shares major mineral phases. Designing habitat parts from basalt today is the most realistic dress rehearsal we have for the day a CAD file becomes a printed habitat module on another world.

How it works — the 4-step process

1

Print

Print on any FDM printer with a 0.6 mm hardened steel nozzle. Basalt-loaded extrusion produces a deep volcanic-black geometry rich in fine mineral texture.

2

Pack

Nest the green part in alumina ballast inside an alumina crucible — the standard burnout setup that protects geometry as the polymer escapes.

3

Sinter

Fire in a programmable kiln to fuse the basalt particles into a vitrified, dark stone-like body — analogous to thermal regolith consolidation studies in the literature.

4

Test

Characterise mechanical, thermal or radiation properties for ISRU research. Expect ~15–20% linear shrinkage — scale models up ~120–125%.

Why basalt for space research

Lunar mare analogue

Lunar mare regolith is dominantly basaltic — basalt simulants are the established stand-in for habitat, landing-pad and shielding R&D.

Martian surface stand-in

Mars surface mineralogy includes large basalt fractions — basalt-loaded prints are widely used for ISRU and habitat-construction simulation.

ISRU prototyping

In-Situ Resource Utilisation studies need printable test articles that mimic regolith chemistry. Filamet™ turns basalt into a CAD-driven workflow.

University-supported

TVF actively supports university and NASA-affiliated research programs running this material — technical support is available for academic groups.

Stone-like fired body

Once sintered, basalt vitrifies into a dense, dark, stone-like ceramic — visually and structurally evocative of fused regolith demonstration parts.

USA-made, fully supported

Manufactured in South Central Wisconsin by The Virtual Foundry. Direct technical support for research, education and aerospace customers.

Specifications

Specification Details
Basalt content 60.0–62.0% by weight
Filament density 1.60–1.75 g/cc
Diameter 1.75 mm (±0.05 mm)
Spool weight 0.5 kg
Sintering schedule Customised by user / research group
Required nozzle 0.6 mm hardened steel
Linear shrinkage (post-sinter) ~15–20% in all dimensions
Hygroscopicity Less hygroscopic than PLA — do NOT dry
Origin Made in South Central Wisconsin, USA

Printing tips

  • Basalt is abrasive — hardened steel nozzle is mandatory
  • Filawarmer recommended for prints over 4 hours
  • Direct drive preferred for cleaner extrusion at higher mineral loading
  • Document your sinter profile — the ISRU community shares schedules

Common applications

  • Lunar habitat construction research and demonstrators
  • Mars surface architecture and ISRU studies
  • Landing-pad and shielding-tile prototypes
  • Planetary-geology teaching collections
  • University and NASA-affiliated space programs
  • Outreach and museum demonstrators

What you can make

Basalt Moon Dust Filamet spool
Basalt Moon Dust Filamet™ spool — volcanic-black extrusion
Habitat prototype printed in basalt Filamet
Habitat-style demonstrator print — basalt geometry from a CAD model
Raw basalt pellets used in Filamet
Raw basalt pellets — the lunar-analogue mineral phase before extrusion

Frequently asked questions

Is this actually moon dust?

No — it is terrestrial basalt, the standard simulant used by aerospace researchers because lunar mare regolith is mineralogically dominated by basalt. Real lunar samples are tightly controlled by national programmes; basalt simulants are how everybody else does the science.

Does TVF support university and NASA-affiliated research?

Yes. Basalt Moon Dust Filamet™ is actively used by university aerospace programs and NASA-affiliated research groups for ISRU and habitat construction studies. TVF provides direct technical support for academic and research customers working with the material.

Can I sinter the parts into a stone-like body?

Yes — basalt vitrifies in a programmable kiln to form a dense, dark, stone-like body. The exact schedule depends on geometry and the property you are characterising; researchers typically iterate the firing profile alongside their downstream tests.

Why basalt and not a more exotic simulant?

Because basalt is genuinely the closest available analogue. Lunar mare regolith is largely basaltic, and major Mars surface terrains share basalt mineralogy. Custom blended simulants (JSC-1, MMS, etc.) exist for specific studies, but raw basalt is the practical baseline for FDM-based ISRU prototyping.

How does this compare to other ceramic Filamets?

Basalt is the space-research ceramic. Porcelain is the studio-pottery ceramic, zirconium silicate is the technical refractory, and silicon carbide is the ultra-hard research ceramic. Pick basalt when the question is “how would this print on the Moon?”

What else you’ll need

TVF FireX Sintering Kiln

Programmable kiln engineered for the full Filamet™ range — develop your basalt vitrification profile with full schedule control.

Other Ceramic Filamets

Porcelain, zirconium silicate and silicon carbide round out the ceramic range — useful baselines for comparative ISRU studies.

Made in South Central Wisconsin, USA. World-class technical support provided for all TVF products.

(TVF-FILAMET-BASALT-175)

SKU TVF-FILAMET-BASALT-175
Brand The Virtual Foundry
Shipping Width 0.220m
Shipping Height 0.080m
Shipping Length 0.220m

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