PETG, a durable plastic that is easy to work with

About PETG

PETG, or glycol-modified polyethylene terephthalate, is a thermoplastic widely used in various industries for its unique combination of properties. Derived from modifying PET with the addition of glycol, PETG offers exceptional clarity, high mechanical strength and excellent machinability. Its thermoformability and food safety make it a preferred choice for numerous applications, ranging from packaging to technical components.

Trust our PETG expertise

At 3D Coupe, we master PETG machining perfectly to meet the demands of your industry. With our expertise and cutting-edge equipment, we guarantee precise cuts, solid assemblies and tailor-made solutions to suit your needs. Contact us today!

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Features

Mechanical performance

Tensile Strength: PETG exhibits a tensile strength of about 50 to 60 MPa, providing adequate robustness for functional parts.
Elongation at Break: with an elongation at break of 50% to 80%, PETG combines rigidity and flexibility, making it less brittle than other plastics like PLA.

Thermal performance

Glass transition temperature: PETG begins to soften around 80°C, making it suitable for applications requiring moderate heat resistance.
Continuous use temperature: It retains its mechanical properties up to about 70°C, ensuring stable performance under typical operating temperatures.

Chemical performance

Chemical resistance: PETG offers good resistance to acids, bases and alcohols, making it ideal for environments exposed to various chemicals.
Food compatibility: This material is often used for applications in contact with food, thanks to its chemical stability and non-toxicity.

Practicality

Ease of Machining: PETG can be cut, bent cold and hot, polished and easily welded, offering great flexibility in manufacturing processes.
Thermoformability: It can be thermoformed over a wide temperature range without the need for pre-heating, thereby simplifying shaping processes.

Uses of PETG

PETG is commonly used in the manufacturing of displays, industrial protectors, molds for the food industry, medical components, and signage. Its combination of transparency, strength, and ease of machining also makes it popular for 3D printing applications, where it is valued for its durability and dimensional stability.

FAQ and Comparisons

PETG and PLA are two popular materials in 3D printing, each with its own advantages. PLA is easy to print and biodegradable, but it is more brittle and less heat resistant. PETG, on the other hand, offers better mechanical and chemical resistance, as well as greater flexibility, making it suitable for functional parts requiring durability and shock resistance.

Yes, PETG is often used for applications involving food contact due to its chemical stability and non-toxicity. However, it is essential to ensure that the PETG filament or material used is certified for food use by the appropriate authorities.

Compared to ABS, PETG offers better impact resistance and greater ease of printing, with less warping and shrinkage. Additionally, PETG does not emit unpleasant odors during printing, unlike ABS. However, ABS has slightly superior thermal resistance, which may be a determining factor depending on the application.

PETG has some UV resistance, but prolonged exposure to UV rays can lead to a degradation of its mechanical properties and a loss of transparency. For extended outdoor use, UV stabilizing additives or surface treatments can be considered to enhance its durability.

We are specialists in PETG machining

At 3D Coupe, we put our expertise in PETG machining at the service of your projects. Whether it is for cutting, forming, or assembly, we provide you with solutions tailored to your industrial needs. Contact us today to plan your project!