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Prusament ASA Jet Black 850g

What can you expect?

Prusament ASA is our own in-house made filament. The whole manufacturing process is closely monitored and tested - we guarantee ±0.03mm precision and highly-consistent colors. You can inspect the parameters of every spool we made at prusament.com. Check the sample spool!

Manufactured In-House By Josef Prusa

We were not satisfied with the quality of filaments on the market. So we decided to make our own! Prusa Research is the only 3D printer manufacturer with its own filament production.

Premium-Grade Materials And Thorough Testing

The whole manufacturing process is closely monitored and tested – string diameter, color consistency, and mechanical properties – to make sure that every spool is perfect.

± 0.03 mm Manufacturing Guaranteed Precision

We believe the industry standard of 0.05 mm isn’t sufficient for perfect 3D printing. Instead, we guarantee ±0.03mm precision and highly-consistent colors in our filaments.

High Quality You Can Check Yourself

We are the only manufacturer that gives the option to inspect parameters of every filament spool. Scan a QR code on the spool to see all details online (check the sample spool).


 

Read more about Prusament in general in the article at blog.prusa3d.com and about Prusament ASA in this article. Or just visit Prusament.com!

About ASA

ASA can be considered a true successor to ABS. 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. The solidification temperature is also higher compared to PLA and PETG, which gives objects printed from ASA an excellent temperature resistance – there are no signs of deformation up to temperatures near 93 °C. Thanks to all these properties, ASA is especially suitable to print objects meant for long-time outside use.

However, you can still encounter some issues related to shrinking (warping) of the material – especially when printing larger models. Even with the heatbed set to 110°C, the prints can shrink and warp, causing them to detach from the print bed. However, the effects are much less severe compared to ABS. This issue can be eliminated by printing inside an enclosure or by adding a tall skirt around the object.

ASA printing requires specific conditions for successful results. 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. However, when ventilating the room, do not create a draft around the print – this will negatively impact the result.

Print sheet preparation

For ASA printing, we recommend using the satin spring steel sheet. With the powder-coated or smooth sheet, the adhesion of the material can be too strong, which could potentially result in damage to the surface of the sheet. The textured and PEI smooth spring sheet preparation is easy: simply clean the surface with isopropyl alcohol and apply glue. To remove the print, wait until it cools down – it will then pop off easily.

You can find more details about printing with ASA in our in-depth article.

Printing Setup

Nozzle 260±10 °C
Heatbed 110±5 °C

Basic Attributes

Great for outside use – UV stable

Large models have a tendency to warp

High temperature resistance

Produces odors during printing (less than ABS)

Detailed prints without a stringing effect

Contains styrene

Can be smoothed with acetone vapors

Hygroscopic

Can be easily sanded / post-processed

Not recommended to print on the Textured powder-coated steel sheet - very strong adhesion may cause damage to the steel sheet surface

High impact and wear resistance

   

Recyclable

   

Notes

This ASA is made in-house by Prusa Research.

1.75 mm filament is manufactured with a precision of +- 0.03 mm

Before printing, make sure the surface of heatbed is clean as described in 3D Printing Handbook.

To dry the filament, please follow the instructions in our article

Reviews

5 reviews
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Stuehler Florian
Stuehler Florian11 months ago

My Spool arrived very dusty, but nonetheless it prints very good. Small parts work well without an enclosure. Adhesion on the powder-coated sheet with gluestick is also very solid

Mendez Antonio
Mendez Antonio12 months ago

I have tried various other brands as I have started printing with ASA, and I think Prusament's version is superior to the rest. Beautiful prints, and the roll is wound up perfect as you would expect. Will order more in the future.

DEPLANCHE Alexislast year

Settings I would like to recommend to print perfectly with ASA on an MK3s : - An enclosure : fan from outside in and one inside out to evacuate the heat and the bad fume. The fan should be in the back of the enclosure and shouldn't send air to the printer, the "wind" must only go trough the enclosure to avoid perturbation to the printing and then avoid warping. Filter very recommended or at least a ventilated room/not a living room. (Printing ASA create styrene particles that are cancerous). - Bed : Spring Steel Sheet With Smooth Double-sided PEI + an adhesive product (Magigoo, laquer). The adhesion is very strong, and the adhesive layer is really recommended everywhere there will be a print (even on the extrusion print). -Support : mandatory. (2 layers is okey) - Temperature : 260°C for the extruder. 110°C for the bed for the first layer and 105° for everything else. - Fan : 0% - no fan required. - Speed : as low as possible, the faster the more chance there is a warping issue (50 to 60 is okey, up to 80mm for inside) - Finished print : WAIT until the print is cooled down (35°) otherwise there will be warping at the cooling phase. - ASA filament : required to be inside the enclosure to be heated up and avoid humidity. Very moisture sensitive. Doing all of this I printed a 15x8x5cm print with no issues at all with triangle pattern and 0.30mm layer and 15% infill in 4h30.

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Are you considering buying any of our products? Do you have questions about their technical parameters, prices or optional accessories? Feel free to contact us, we're happy to help.

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