PETG 3D Printing Service

PETG is a durable, flexible thermoplastic ideal for applications requiring impact and chemical resistance

What is PETG?

PETG (Polyethylene Terephthalate Glycol) is available through our 3D printing service. At Protolabs, we offer standard PETG, a general-purpose material with strong mechanical properties, flexibility, and excellent resistance to chemicals and moisture. With superior mechanical performance compared with PLA, PETG is well-suited for durable functional prototypes and end-use parts. PETG can also be sterilised for use in medical devices.



PETG Material Properties for 3D Printing


Material Process Tensile Strength Tensile Modulus Learn More
Standard PETG FDM  40-60 MPa 2.0-2.5 GPa Data sheet


Applications for 3D Printing PETG Plastics

PETG is commonly used in applications where durability, flexibility, and environmental resistance are required, including:

  • Functional prototypes and mechanical components
  • Protective housings and enclosures
  • Medical and sterilizable components
  • Industrial parts exposed to moisture or chemicals
  • Parts requiring impact resistance and toughness

FAQs

Is PETG suitable for functional parts?

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Yes. PETG combines strength, flexibility and impact resistance, making it well-suited for functional prototypes, and end-use parts that need to withstand regular handling or mechanical stress.

What is the difference between PETG and PLA?

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PETG generally offers greater impact resistance, flexibility, chemical resistance and moisture resistance than PLA. PLA can be suitable for visual prototypes and less demanding applications, while PETG is often preferred for more durable functional parts.

Is PETG resistant to chemicals and moisture?

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PETG offers good resistance to moisture and a range of chemicals, making it suitable for components used in environments where exposure to liquids or humidity may occur. Compatibility with specific chemicals should be evaluated for the intended application.

How strong is 3D-printed PETG?

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The mechanical properties of PETG depend on the specific material and printing conditions. Standard PETG typically provides a good balance of tensile strength, toughness, and flexibility for functional applications.

What is PETG commonly used for in 3D printing?

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PETG is commonly used for functional prototypes, mechanical components, protective housings, enclosures and industrial parts that require durability, impact resistance or resistance to moisture, and chemicals.