What Is PETG?
Technical Name - Polyethylene terephthalate glycol (PETG)
Chemical Formula - (C10H8O4)n
Glass Temp - 80°C
Melt Temp - 220-260°C
Thermoplastic
![](/wp-content/uploads/2022/04/Filament-Spool-Red-v2-square.jpg)
![](/wp-content/uploads/2022/04/James-Dickson-John-Whinfield-2.jpg)
James Dickson & John Whinfield
Who Invented It? #
The year was 1941, British scientists James Dickson & John Whinfield created PET (PETE) which later the E was swapped for a G with Science giving us the PETG we all know and love today
But you're here to Print...
So let's fast forward a bit to 2023 #
How to print with PETG?
- Hotend Temp:
240°C
- Bed Temp:
80°C
- Fan Speed:
50%
Bed Surface Preparation: #
- Hair Spray (unscented)
- Bare Glass (cleaned with alcohol)
- Glue Stick
![](https://hotends.com/wp-content/uploads/2022/04/calibration-cube-PETG.jpg)