Prusament PETG Jet Black 1kg Refill
What can you expect?
Prusament Refill is an environment-friendly way to refill your empty Prusament spool. Once you run out of Prusament and the spool is empty, simply remove the spool's sides and attach them to Prusament Refill which comes wound on a spool core.
Every Prusament Refill we made is up to the high quality standards of our in-house made filaments and is well-secured for transport, so you don't have to worry about tangled spools.
How to fit Prusament Refill spool
The Prusament spool consists of black plastic sides and a cardboard centerpiece. The sides are pushed on the centerpiece and can be removed to reuse or recycle. Please note there are also gray Prusament spools used for high performance. Those are glued to the cardboard centerpiece as some filaments require drying up in high temperatures.
The trick to easily separate the center of the spool from the plastic sides is to rotate the spool. Pull the ends of the spool apart using a reasonable amount of force and gradually rotate the spool bit by bit. Thanks to this movement, it will be easier to separate the sides from the center of the spool.
More detailed instructions on how to fit the Prusament Refill spool can be found on the help.
Prusament PETG is our own in-house made filament. The whole manufacturing process is closely monitored and tested - we guarantee ±0.02mm precision and highly-consistent colors. You can inspect 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.

± 0.02 mm Manufacturing Guaranteed Precision
We believe the industry standard of 0.05 mm isn’t sufficient for perfect 3D printing. Instead, we guarantee ±0.02mm 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 the article at blog.prusa3d.com or at Prusament.com!
About PETG
PETG is a very tough material with good thermal resistance. Its use is universal but especially suitable for mechanical parts and both indoor and outdoor use. PETG has almost no warping, so printing large objects isn’t a problem. We use PETG to print parts for our printers!
PETG is one of our favorite materials for 3D printing. It’s almost as easy to print as PLA, but it can offer many mechanical properties that PLA prints just cannot achieve. The G in the acronym PETG stands for Glycol which is added during the manufacturing process. Glycol modifies the properties of PET, so that it’s easier to print, less brittle and clearer when printing with semi-transparent variants. PETG has low thermal expansion, so even when printing big objects, and without an enclosure, it rarely lifts from the bed and warps. In addition to that, PETG is ductile. It has a healthy amount of flex which can prevent parts from breaking under pressure.
Unlike PLA or ABS, PETG tends to ooze a bit and may leave strings of plastic on your print. You can fight this with increasing retraction and playing with hotend temperature, but if you use our filament presets in Prusa Slicer, we already did that for you and the amount of stringing is minimal. If you witness a tiny bit of stringing anyway, you can get rid of it by quickly blasting your finished prints with a heat gun.
If you can handle the oozing and strong adhesion, you’ll be left with a very durable print, that is considerably temperature resistant and usable for both indoor and outdoor use.
Printing Setup
Nozzle | 250 °C |
Heatbed | 70-90 °C |
Basic Attributes
High temperature resistance |
Not suitable for tiny parts |
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Easy to print | Possibility of stringing |
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Low shrinking and warping |
Poor bridging characteristics |
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Strength and Durability |
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Simple to sand |
Notes
This PETG is made in-house by Prusa Research.
1.75 mm filament is manufactured with precision of +- 0.02 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 The inner diameter of the cardboard spool is ± 94 mm (3,7″) and the width is ± 60 mm (2,36″).Reviews
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