PETG High-Temperature (Polyethylene Terephthalate Glycol-Modified) filament is a type of 3D printing filament known for its excellent combination of properties. It is an enhanced version of PETG filament, which is a popular material for 3D printing due to its strength, and durability.

The "High-Temperature" aspect of PETG High-Temperature filament refers to its ability to withstand elevated temperatures compared to standard PETG filament. While regular PETG has a glass transition temperature (Tg) around 70-80°C, PETG High-Temperature filament has a higher Tg, typically around 100-110°C.

The higher Tg of PETG High-Temperature filament makes it more suitable for applications that require improved heat resistance, as it can better withstand exposure to higher temperatures without deforming or losing its mechanical properties. This makes it ideal for 3D printing functional parts, objects that might be exposed to sunlight or warm environments, and components that need to endure higher heat during use.