PETG is a tough material – it is extremely durable and prints without odor. It prints very nicely with a surface quality similar to PLA. Thanks to its low shrinkage during printing, this material is suitable for printing large objects. Unlike other materials, PETG is more resistant to acids and solvents, as well as high and low temperatures. It is possible to heat-form a printed object from it or flame-polish it. This is another material that should be on your list right after PLA. PET-G can be quite harmful to the environment, so it should be recycled. Full decomposition of PET-G takes decades.

Here are the main advantages of printing with this material and common properties of PETG filament:

• Very durable, more flexible than PLA or ABS, but also a bit softer.
• Hard to break in half, so if you need an “unbreakable” case or cover, PETG trumps almost everything (except Nylon 12).
• Has very low shrinkage, therefore no warping. Ideal for printing large items.
• PETG is also very strong; it’s not brittle, but it can be scratched more easily than ABS, which is harder.
• PETG is not very good for printing supports because it bonds extremely well. But since it bonds so well, layer adhesion is fantastic, making prints strong and durable.
• Adheres well to the build plate, so be careful when removing it after printing.
• Has high chemical resistance along with resistance to alkalis, acids, and water.
• Printing is odorless.

PET-G finishing: It is advisable to first spray the print with a filler primer (putty used in modeling) and then sand and clear coat it, repeating as needed—until the surface is completely smooth—and finally spray with paint.

Bonding PET-G: Polyurethane glue, cyanoacrylate (super glue), and two-component epoxy are suitable materials for bonding PET-G.

Recommended PET-G print settings: Standard nozzles are suitable. You can choose diameters according to the surface finesse you want to achieve or based on the layer height settings during printing. Printing temperature: 240 °C. A heated bed is not required, but for better adhesion you can heat the bed up to 75 °C.

The filament is vacuum packed with a desiccant and placed in a cardboard box. The plastic spools on which the filament is wound may differ in vent pattern or color. We strive to maintain 100% repeatability of winding and color.

For more information about 3D printing materials, you can use our material glossary https://3dstisk.cz/materialovy-slovnik/

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