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Create real metal parts using any open-architecture FFF/FDM 3D printer—or even a 3D printing pen.
Available Formats:
Spools: 1.75mm and 2.85mm diameters in 100g, 0.5kg, and 1kg weights
Pellets: 1kg units
What's Included:
Spools: 1 spool of Copper Filamet™ in the selected size and weight and 1 spool of Rapid 3DShield Tungsten Filament in the selected size and weight.
Pellets: 1 jar of Copper Filamet™ Pellets (1kg) and 1 jar of Rapid 3DShield Tungsten Pellets (1kg).
Filament Density:
Copper: 4.3g/cc - 5.0g/cc
Tungsten: 7.80g/cc – 9.20g/cc
Metal Content:
Copper: 86.0% – 90.7% pure copper
Tungsten: 88.0% – 94.0% pure tungsten
High Compatibility:
Works with virtually any open-architecture 3D printer—no proprietary hardware or specialized equipment required. Also compatible with 3D printing pens.
👉 Our list of Trusted 3D Printers – Click Here
Easy Printing Experience:
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Print with a 0.6mm hardened steel, standard flow nozzle for copper, and a 0.8mm hardened steel, standard flow nozzle for tungsten
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Prints similar to PLA
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Minimal to no warping
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Ensure the filament feeds straight into the extruder
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Less hygroscopic than PLA
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Do not dry this filament—drying will degrade the binder
👉 More information on printing – Click Here
👉 Print this test model to ensure you're getting the highest density you can for tungsten. The model should weigh 5.5g or more.
Special Qualities:
Can be used as a replacement for lead for radiation shielding with no sintering required.
👉 For more information on tungsten, visit rapid3dshield.com.
👉 See testing data here.
*Tungsten is used in its green state for radiation shielding and it is not intended to be sintered. Copper was tested in its green state, but can be sintered for higher density shielding parts.
Applications:
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Radiation shielding
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Shielding radiopharmaceuticals
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Shielding hotspots in a nuclear reactor cooling channels
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Research
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One-off and short-run manufacturing
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Reducing or eliminating tooling and machining costs
Additional Links:
👉 SDS and TDS – Click Here
👉 Research Papers – Click Here
Explore More Metal Filaments:
All print just like PLA on most open-architecture 3D printers.
Recycle empty spools with the spool buy-back program – Click Here
Large orders may be subject to longer lead times. Contact us for more accurate lead times.
Due to a global supply crunch and shifting export controls, tungsten market prices have reached historic highs in early 2026, directly impacting our raw material costs. We have adjusted our pricing to reflect these current market conditions and remain committed to lowering our rates as soon as global supply stabilizes and tungsten prices retreat.
