How Much Heat Can PETG Handle in 3D Printing?

Choosing the right material can make or break your 3D printing prototypes, and here at HLH Prototypes, we help you find the best fit for your design — whether that’s ABS or a more versatile option like PETG. PETG offers strong thermal resistance and durability, making it ideal for parts that need to handle stress, heat, or exposure to the elements.

A tougher thermoplastic

PETG (polyethylene terephthalate glycol-modified) is a modified version of PET. While standard PET is strong, it tends to become brittle when exposed to heat, moisture, or impact. Adding glycol makes PETG more durable and flexible while keeping it non-toxic and suitable for food-safe and clear applications—like water bottles or UV-resistant parts.

PETG is also resilient in acidic and alkaline environments and won’t warp easily. It maintains clarity over time. That makes it a reliable option for transparent parts and outdoor applications.

How much heat can it handle?

PETG performs well under heat, making it suitable for high-temperature 3D printing. For best results, keep the heated bed between 65°C and 95°C, and set the nozzle temperature between 220°C and 260°C. PETG melts at 260°C and has a glass transition temperature of 85°C—meaning it starts to soften at that point but holds its shape up to that limit under normal use.

Is PETG right for your 3D printing prototypes?

PETG could be a good fit if you need strong, slightly flexible parts that resist warping and shrinking. It also prints well at faster speeds while maintaining surface quality and dimensional accuracy. We’ll assess your design and help confirm whether PETG is the best option for your 3D printing prototypes.

Get started here at HLH Prototypes Co. Ltd.

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