Non-warping, no smell, PET filament

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Non-warping, no smell, PET filament

Postby PBuser » 2015-Aug-Sun-05-Aug

No shrinking or warping.
No smell.
No enclosure required.
Build plate can be heated or not (depends on brand).
Can be printed on glass without any glue*
Does not absorb water or moisture from air, so no storage container needed.
Clear color is the most transparent of all filament materials.
Is much "tougher" that PLA or ABS; will bend before breaking.
Uses about the same extruder temps as ABS.
Does not need a print cooling fan like PLA does.
Also known as Polyester, PETG, PETT, PET+
Is what most soda pop bottles are made of.
Does not degrade in water.
FDA approved in the USA for for food contact.
Not brittle.
Is the most recycled plastic.
Prices are coming down, and some are about the same as ABS.

Test model:
Printing video:
Result video:

Current places carrying PET:

eSun - from Intservo, in North Carolina USA: ... =942259463
*opaque black is tested to print onto glass without any glue at all;
stays attached above 80C, and pops off at room temp.

eSun - from Intservo on Ebay, in North Carolina USA:

Alchement - from New Jersey, USA (choose PET from the menu):

RepRapperTech in Hong Kong: ... /petg.html

Made Solid - from California USA: ... 75mm-1-lbs

Made Solid - from Matter Hackers, in California USA: ... -pet-175mm

Made Solid - from Design Box, in Ohio USA:

Made Solid - From Australia: ... t-filament

Colorfabb XT - from Netherlands:

Colorfabb XT - from Printed Solid, in Delaware USA:

Taulman T-Glase - from Matter Hackers, in California USA: ... lase-175mm

Taulman T-Glase - from MakerGeeks, in Missouri USA:

Taulman T-Glase - from Imprinte 3D, in France:

Eco PETG - from China (must email to order):

Reprap PET - from Denmark:

Gizmo Dorks - in Los Angeles, USA:

Various: ... cro-Center

3D Prima, from Sweden: ... tural.html
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Non-warping, no smell, PET filament



Re: Non-warping, no smell, PET filament

Postby cacb » 2015-Aug-Sun-06-Aug

You list a number of arguments in favour of PETG, very nice.

I guess there are downsides, what are they?
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Re: Non-warping, no smell, PET filament

Postby PBuser » 2015-Aug-Sun-06-Aug

Well for structural parts where you can't use PLA, using PET seems to be more shiny that the other main option of ABS. Especially black. The shine may not be wanted (although I think it looks good).
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Re: Non-warping, no smell, PET filament

Postby RetireeJay » 2015-Aug-Sun-10-Aug

I'll add to the benefits that PET (specifically T-Glase) doesn't ooze anywhere near as much as nylon (the only other "odorless" filament I know of).

T-Glase is not opaque, it's translucent - which may not always be the appearance you want.

Nylon is extremely tough (meaning hard to break) - but it gets some of its toughness from being more flexible than the other plastics.

T-Glase works well with bridging. It doesn't require very much fan (if any). Although it can be printed directly on glass, I like using glue stick to control the adhesion (I had some glass chip because of too much adhesion).

T-Glase can also be bought directly from Another supplier is our own PxT, doing business as
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Have used many pounds of T-Glase filament. Now also doing some work with Ninjaflex SemiFlex
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Re: Non-warping, no smell, PET filament

Postby PBuser » 2015-Aug-Sun-11-Aug

Yes the T-Glase was the first PET that I read about, but did not know about the advantages because they were not spelled out.

As for nylon, I wonder if there are any parts which really really would need it, compared to PET versions of it. The difficulties in printing the two materials are so far apart, yet the strength seems almost the same, that maybe all parts should just be re-designed for PET only.
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