Prusa Research Prusament PETG Tungsten 75% 1kg (NFC)
$219.99
Why To Choose Prusament
Prusament is a premium-grade material made by the same people who build the printers. Every spool is manufactured in-house with consistent color and ±0.02 mm precision. You can verify it yourself, down to the last meter.
About Prusament PETG Tungsten 75%
Prusament PETG Tungsten 75% is a highly specialized filament designed mainly for radiation shielding purposes. Tungsten (also known as wolfram) powder inside the PETG filament is a heavy metal that does not react with water and is resistant to oxidation at room temperature. Unlike lead, tungsten is hypoallergenic and non-toxic. This makes it perfectly suitable for creating complex X-ray and gamma-ray radiation-shielding components (not only for medical applications) in an easier and faster way compared to conventional methods.
Find out more about Prusament PETG Tungsten 75% and its uses in the announcement article.
Print preparation
It is necessary to use a hardened steel nozzle. Tungsten powder is a highly abrasive material and may damage a brass nozzle.
Powder-coated Satin or TXT sheet provides good adhesion. Clean it with IPA (available in drugstores, for example) which works great not only with Prusament PETG Tungsten 75% but with other materials too.
Pour a small amount of IPA on a paper towel and use it for cleaning the surface. To achieve the best results, clean the surface while it’s cold. Keep in mind that higher temperatures will evaporate the alcohol before cleaning the surface. Also, don’t forget that the heatbed preheated for printing Prusament PETG Tungsten 75% has a high temperature (80 °C) and may burn you if you touch it! Another possibility is cleaning the surface with warm water and a few drops of dish cleaner on a paper towel. You can also use denatured alcohol.
We don’t recommend printing with Prusament PETG Tungsten 75% on a smooth PEI sheet. This material adheres greatly to the PEI surface and may cause damage to it. This type of damage is not covered by the warranty. If you need to print on a smooth surface, spread a thin layer of paper glue stick on it.
Printing Setup
| Nozzle | 260±10°C |
| Heatbed | 80±10 °C |
| Recommended Steel Sheet | Textured / Satin |
Download printing profiles for Prusament PETG Tungsten 75% (MK4, XL)
For optimal printing download the config bundle or turn to the material datasheet
Basic Attributes
Radiation shielding material
Good chemical resistance
Non-reactive
Non-toxic
Hypoallergenic
Visually appealing metallic grey surface
Easy to print
Easy postprocessing (can be polished as other metal-filled materials)
Requires a hardened nozzle
Lower toughness compared to Prusament PETG
High-density material (less meters of filament per 1 kg)
Not suitable for sintering
Higher price
New spools equipped with OpenPrintTag
Prusament filaments are wound on a redesigned spool that introduces several improvements for an even better printing experience, starting in October 2025. The new spool features a simple locking mechanism that makes disassembly quick and easy, allowing effortless refills. It also stays secure during filament drying, even at higher temperatures. And with its slimmer dimensions, the spool ensures compatibility with a wide range of multi-color and multi-material printing systems.
Every new Prusament spool now comes with a fully rewritable NFC tag powered by the OpenPrintTag standard. It’s designed to work across brands and ecosystems. It is free to use, free to extend, and open for anyone to build upon. Most importantly, it works entirely offline. All essential data is stored directly on the tag. Your printer can recognize the spool instantly, with no dependence on cloud services or vendor lock-ins. The OpenPrintTag attached to your Prusament spool contains essential data about the material and can be read with the Prusa mobile app.
