Is PETG the Best 3D Printing Filament?

Alex DanisJune 25, 2020

Polyethylene Terephthalate -G or PETG filament is fast emerging as a popular choice for 3D printing. The G in PETG stands for Glycol which means that there is no crystallization during the thermoforming process, which in other words means that the end product is clear and not hazy. Polyethylene terephthalate (PET) is used across industries with uses ranging from food packaging to the production of plastic bottles. Despite its several variations available in the market, PETG has emerged as the most popular choice for 3D printing.

Benefits of PETG as a 3D Printing Material

Durability: As compared to regular PET, PETG is more durable. For instance PETG filament 1.75 is a very popular choice for printing these days. Regular PET becomes brittle and hard in case of overheating. PETG is strong and not brittle.

Temperature Resistant: PETG responds well to high temperature and if at all there is minimal shrinkage. This makes it a great material for printing large objects.

Amorphous: The clarity and transparency that PETG provides is excellent. Also, the high gloss surface makes it ideal for printing artistic items.

Layer Adhesion: PETG is sticky and hence cannot be used as a support structure for 3D printing models but has excellent layer adhesion.

Environment Friendly: One of the biggest benefits that PETG offers is that it is food safe and recyclable, rendering it friendly to the environment. PETG products have also been found to resist medical sterilisation processes and radiation, thus expanding its spectrum of applications further.

PETG Vs ABS: Which is Better?

ABS was the undisputed choice for 3D printing till PLA came along. However, with the growing preference for PETG, will ABS become obsolete? Here's a look at what both filaments offer to help you decide better:

ABS is extremely durable, cheaper to produce and purchase and is extremely lightweight. However, the high temperatures required to reach its melting point are a drawback. Furthermore, ABS is known to give out a strong smell which can be toxic to humans and pets.

PETG is said to offer the best of both worlds. It offers the durability of ABS and the ease of printing of PLA. It also has high tensile strength like ABS and is environment friendly. This makes 1.75 mm PETG filament and PETG carbon fiber a popular choice.

However, the disadvantage of working with PETG is that it is hygroscopic, which means it will absorb moisture and get damp if it is not stored in a dry place, properly. This damp filament will not give the results you would want.

PETG also does not work very well in UV light, which means you cannot use it to make something that has to be used outdoors constantly. Constant exposure would make it brittle and break easily. ABS, on the other hand, withstands heat and stress and weathers wear and tear quite well.

Conclusion:

Both filaments come with their benefits and shortfalls. However, it is for the customer to pick the right filament depending on their requirements. You can find both filaments in your nearby stores or order them online. You can search for PETG filament Amazon to find the product online.

If you are still not sure, you can reach out to Filaments for guidance.

Reach Out for All Your Printing Needs!

Filaments specialises in 3D printing filaments, printers and other products. You can address your queries related to PETG 3D printing, clear PETG filament, etc to info@filaments.ca or speak to our experts by calling at 1-888-536-5551 or 905-677-1337.

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