PET-G: Tips and Tricks

In this article you will find some information that will help you to master the PET-G






Note: This article contains advanced information regarding PET-G. The default settings for our BCN3D PET-G have been tailored for good quality and reliable results, and are fully tested by our laboratory. These tips complement those settings to ensure the best quality in printing with PET-G.



PET-G (Polyethylene Terephthalate with added Glycol) is a common 3D printing material that presents similar properties as ABS, but doesn't have a high contraction rate, making it easier to print and to stick on the printing surface. PET is widely used in food-grade packagings, clothing, boating sails, and many others, as it is the most common polymer in the world. It is highly recyclable and food safe. 


This article will help you reach the best quality when using this particular filament. 


Tip: Check out this material compatibility chart, it will help you choose the materials that fit best with PET-G:

Supported Material Combinations.

Make it stick well

The first layer is key to success with your 3D prints in PET-G, make sure to choose the right adhesive and surface adhesion type. For some, Magigoo works well when printing with a Brim. Others prefer 3D printing lacquer for larger prints. To release the part from the printing surface, wait for it to cool down, the PET-G should pop off with almost no effort. 

It is advised to use PLA instead of PVA as a support material for PET-G, as it doesn't present a good adhesion with PVA and can warp up.

A stringy situation

This material tends to string and ooze out a lot, there are some settings that can fix this in BCN3D Cura. Check out this article to know a bit more on Stringing:

How to fix Stringing

Improve wiping

As the PET-G is so oozy, you'll have to raise up the silicone wiping cloths a couple of millimeters to increase their effectiveness. 

Prevent layer shifting

There may be some blobs of PET-G laid on the print, these can cause layer shifts as the print head can impact through and get stuck in those. You can set the combing mode to "No skin" and enable the "Avoid printed parts when traveling" feature in BCN3D Cura. This will make the head to travel away from the actual print, and won't get stuck to anything. 


Forum community 

Need more tips? Check out our forum community for help.


It's important to keep your printer in good shape to make the most out of it. In this chart, you can find a list of the extruder maintenance procedures and how frequently these should be done. 

Maintenance Plan (Epsilon Series)

Maintenance Plan (Sigma Series)

Maintenance Plan (BCN3D Sigmax)

Maintenance Plan (BCN3D Sigma)


bcn3d-recycle  Take your e-waste to a certified recycler. Check how we do it in BCN3D.



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