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Topic: What dissolves PETG?

Acetone doesn't. I read that phenol does but I don't know which phenol (there re many variants). Any short answers here? Hoping for something I can buy locally.

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2 (edited by carl_m1968 2016-01-26 19:26:13)

Re: What dissolves PETG?

Heartlander wrote:

Acetone doesn't. I read that phenol does but I don't know which phenol (there re many variants). Any short answers here? Hoping for something I can buy locally.

Your out of luck. The only things that can do require expensive multiple processes or a license and special equipment to handle.

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Re: What dissolves PETG?

http://www.northerntool.com/images/product/2000x2000/m03/m0313_2000x2000.jpg

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Re: What dissolves PETG?

No cement either? Anybody know where to get water tight (closed end) plastic pop rivets? I see plastic rivet and I see water tight rivets, but not the combination.

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Re: What dissolves PETG?

elmoret wrote:

http://www.northerntool.com/images/product/2000x2000/m03/m0313_2000x2000.jpg

My favorite answer of the day big_smile

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6 (edited by Revolve3D 2016-01-26 20:42:40)

Re: What dissolves PETG?

A phenol group is just a benzene ring with an OH (Hydroxyl group on it). There are a lot of chemical compounds that contain a phenol group.  Carbolic acid can be purchased online but I bet it will attack more the just PETG. Doing a bit of quick googling shows that aromatic hydrocarbons will dissolve PETG. Aromatic compounds just mean it contains a benzene ring. Toluene might do it but without trying it I can't recommend anything and cannot advise you to try it.

Edit: It has been several years since organic chem so I am a bit rusty on some of this stuff.

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7

Re: What dissolves PETG?

Yeh, that's what I was gettin ready to say.


smile

Thanks.

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Re: What dissolves PETG?

I wonder wht brake cleaner would do? THat's some pretty strong solvent. So is carburetor cleaner. The idea would be to find  solvent that could be used to make PET cement.

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Re: What dissolves PETG?

http://sevierlab.vet.cornell.edu/resour … Detail.pdf

You're looking for all the "N"s in the PETG column. Some will dissolve better than others, but if it is rated E, F, or G, then it won't dissolve PETG.

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Re: What dissolves PETG?

Tim, you're a wellspring of valuable information. I see that Pure Acetone will supposedly dissolve, or ta least damage, it.

Thanks! I'm loving this E3D Lite, btw.

Robox printer, HICTOP (Prusa i3 variant) Model 3DP17 printer, ELEK 2.5W laser engraver, AutoDesk 123D Design, Windows 10

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Re: What dissolves PETG?

here's another reference:

http://solutions-in-plastics.info/nl-be … stance.pdf

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Re: What dissolves PETG?

Heartlander wrote:

Tim, you're a wellspring of valuable information. I see that Pure Acetone will supposedly dissolve, or ta least damage, it.

Thanks! I'm loving this E3D Lite, btw.

tried acetone on PETG, no effect.

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Re: What dissolves PETG?

DCM works on PETG. just happens to work excellent on PLA as well.

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Re: What dissolves PETG?

Most of the chemicals that will dissolve PETG or PLA should not be used at home or even in a shop unless you have a hood to work under and no sources of ignition for the vapors that can travel very far. They are also not consider safe to even get a small wiff of so a respirator is advised as well.

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Re: What dissolves PETG?

Heartlander wrote:

I wonder wht brake cleaner would do? THat's some pretty strong solvent. So is carburetor cleaner. The idea would be to find  solvent that could be used to make PET cement.

I am just wondering what you need "PET cement" for?

need to glue PETG pieces together? try CA glue (super glue) - the gel type works quite well.

Bed adhesion? you shouldn't need anything special - just like PLA, it should stick to bare glass fine, or glass & hairspray...
or, if you have already spent the money, one of those fancy build plate things...

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Re: What dissolves PETG?

Phenol is Poissonous and as an chemist I hate working with the stuff. Maybe gasoline might work. Its chalk full of hydrocarbons that might do the job.