What is the difference between PLA and PETG?

Most people are switching to PETG instead of PLA, so let's take a look at which is better: PLA or PETG!

PLA or PETG Which one is better..?

Both PLA and PETG filament Both are classified as polyester plastics, and are thermoplastics, meaning they soften at high temperatures and harden at low temperatures. Both PLA and PETG are typically available in two sizes: 1.75mm and 2.85mm.

PLA Abbreviated from "Polylactic Acid" It is a polyester plastic and is popular for most 3D printing materials. It is often used for testing and prototyping before other materials are used.

PETG Abbreviated from "Polyethylene Terephthalate Glycol-Modified"  Its printing applications are as simple as PLA, but it has better mechanical properties than PLA (similar mechanical properties to ABS, but easier to print than ABS).

Conclusion between PLA and PETG

• PETG is more durable, stronger, and more impact resistant than PLA.
• PETG is more heat resistant than PLA.
• PLA has a wider range of colors than PET.
• PLA is slightly easier to print than PETG.
• Both PLA and PETG exhibit slight shrinkage when cooled.
• Both PLA and PETG are food safe.

For beginners, printing with PLA seems like a good option, as it's easier to print with and has more strength. However, if you need stronger properties, PETG is a better choice.

Example of a piece printed from PETG

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