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.
ASA is a technical material with properties similar to ABS but better in several ways. Compared to ABS, it’s UV stable, it doesn’t suffer from shrinking so badly and the fumes produced are much less noticeable. ASA 3D prints are durable, tough and suitable for a wide range of applications. ASA comes with much better high-temperature resistance than other common materials, such as PLA or PETG. It shows no signs of deformation up to temperatures near 93 °C. Thanks to all these properties, ASA is especially suitable for printing objects meant for long-time outside use.
Nozzle 260±5 °C
Heatbed 110±5 °C
Recommended Steel Sheet Satin
+Great for outside use (UV stable)
+Good high-temperature resistance
+Detailed prints without a stringing effect
+Can be smoothed with acetone vapours
+Can be easily sanded / post-processed
+Good mechanical resistance
-Large models have a tendency to warp
-Produces a slight odour of burned plastic during printing (less than ABS)
-Requires enclosure
-Contains styrene (potentially harmful fumes)
-Slightly hygroscopic (absorbs moisture)
You may encounter some issues related to shrinking (warping) of the material – especially when printing larger models. This effect is much less severe compared to ABS but still, even with the heatbed set to 110°C, the prints can shrink and warp, causing them to detach from the print bed. This issue can be eliminated by printing inside an enclosure (for example our Prusa Enclosure) or by adding a draft shield around the object.
It’s important to run the prints in a well-ventilated room because the material releases fumes and substances that could pose a potential health risk. When ventilating the room, do not create a draft around the print – this will negatively impact the result.
This ASA is made in-house by Prusa Research.
Starting from May 2024, all Prusament ASA spools have a tolerance of +- 0.04 mm instead of 0.03 due to changes to the manufacturing process.
Before printing, make sure the surface of the heatbed is clean as described in 3D Printing Handbook.
To dry the filament, please follow the instructions.
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.
ASA is a technical material with properties similar to ABS but better in several ways. Compared to ABS, it’s UV stable, it doesn’t suffer from shrinking so badly and the fumes produced are much less noticeable. ASA 3D prints are durable, tough and suitable for a wide range of applications. ASA comes with much better high-temperature resistance than other common materials, such as PLA or PETG. It shows no signs of deformation up to temperatures near 93 °C. Thanks to all these properties, ASA is especially suitable for printing objects meant for long-time outside use.
Nozzle 260±5 °C
Heatbed 110±5 °C
Recommended Steel Sheet Satin
+Great for outside use (UV stable)
+Good high-temperature resistance
+Detailed prints without a stringing effect
+Can be smoothed with acetone vapours
+Can be easily sanded / post-processed
+Good mechanical resistance
-Large models have a tendency to warp
-Produces a slight odour of burned plastic during printing (less than ABS)
-Requires enclosure
-Contains styrene (potentially harmful fumes)
-Slightly hygroscopic (absorbs moisture)
You may encounter some issues related to shrinking (warping) of the material – especially when printing larger models. This effect is much less severe compared to ABS but still, even with the heatbed set to 110°C, the prints can shrink and warp, causing them to detach from the print bed. This issue can be eliminated by printing inside an enclosure (for example our Prusa Enclosure) or by adding a draft shield around the object.
It’s important to run the prints in a well-ventilated room because the material releases fumes and substances that could pose a potential health risk. When ventilating the room, do not create a draft around the print – this will negatively impact the result.
This ASA is made in-house by Prusa Research.
Starting from May 2024, all Prusament ASA spools have a tolerance of +- 0.04 mm instead of 0.03 due to changes to the manufacturing process.
Before printing, make sure the surface of the heatbed is clean as described in 3D Printing Handbook.
To dry the filament, please follow the instructions.
