PETG Metal Edition | Filament-PM

Printability of PETG filament

PETG is such a popular filament for a lot of reasons. It has a perfect interlayer adhesion without a heated chamber (which is often a problem compared, for instance, to ABS). Its flawless and continuous nozzle flow combined with zero warp makes it a perfect partner for long print jobs and for printing large objects without the need for a heated chamber. For those reasons, PETG is the bestselling material across the FDM 3D printing industry. Compared to PLA, PETG tends to string a little bit, a problem that can be easily fixed by tweaking your retraction settings. 

PETG mechanical and thermal properties

PETG is the perfect combination of the mechanical goodness of ABS and the ease of printing of PLA. It is tougher than PLA, meaning that it doesn't crack as easily when under pressure. It also has improved impact resistance and thermal resistance of 73°C. Imagine the mechanical properties of a PET plastic bottle; that should give you a reasonable illustration of the strength of this material. 

Tips and other notable benefits

Raw PETG is glossy, and so, if not explicitly specified otherwise in the short product description, the surface finish will be glossy. This property can be slightly tweaked by adjusting the cooling fan speed; the more you cool, the more matt will be the finished part. On the other hand, the less you cool the print, the stronger it will be. 

PETG has such a wide range of applications, that for instance, it is highly probable that your 3D printer has parts printed from PETG. This material is odorless, and generally speaking, it is okay to use it in contact with food. (Although not every manufacturer provides a certificate for food compliance. Also, please note that for use in official applications you would need to re-certify it, more here). While printing with PETG, no toxic fumes or vapor are released like with ABS.