Removing silicone - WarmGlass.com

Removing silicone

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chgriffin
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Removing silicone

Postby chgriffin » Tue Apr 01, 2014 9:01 pm

All
I am trying to re-imagine an old project. I used silicone to "glue" my glass to a surface. Now three years later, I want to remove the silicone and refire my design. I am having trouble removing the silicone. I have used a strait blade and removed most, but still have residual. I have tried acetone for that, but not much luck. Any ideas???
Thanks in advance
chrys

Brad Walker
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Re: Removing silicone

Postby Brad Walker » Tue Apr 01, 2014 11:01 pm

Try a silicone remover. Any decent hardware store should carry it. CRL has some also.

chgriffin
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Joined: Thu Apr 04, 2013 8:33 pm

Re: Removing silicone

Postby chgriffin » Wed Apr 02, 2014 8:26 pm

Thanks.......did not know there was an actual "remover". I just thot of a solvent.

Greg Rawls
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Re: Removing silicone

Postby Greg Rawls » Thu Apr 03, 2014 7:42 am

Had the same problem on a flat piece. Put it in the kiln, took it to 800F and slow cool. Burned off the silicon completely.
Greg

chgriffin
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Re: Removing silicone

Postby chgriffin » Sun Apr 06, 2014 6:21 pm

Well, I must have purchased the wrong silicone remover.......it did not work. I will return it. I used a diamond hand finishing pad, and now I will try the 800 kiln. At this point, I should have just remade a new project!! Ah well, the thrill of the chase!
Thanks for the replies!
chrys

Morganica
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Re: Removing silicone

Postby Morganica » Sun Apr 06, 2014 9:49 pm

You have to let it sit--the solvent needs time to penetrate into the silicone--and potentially scrape away the dissolving silicone to expose fresh stuff until it's all removed. That's a pretty common problem; I needed to remove a UV-cure epoxy once and it took about a week of scraping and applying fresh solvent (an entire can of the stuff) to get it off.
Cynthia Morgan
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Sharon S.
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Re: Removing silicone

Postby Sharon S. » Mon Apr 07, 2014 4:57 pm

This past week, I removed some with a heat gun. Just softened it and scraped it off.

Morganica
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Re: Removing silicone

Postby Morganica » Tue Apr 08, 2014 2:20 am

Sharon, it's probably all gone, but you might want to hit it with a solvent just in case. I used to glue weights onto pieces I put in the rociprolap, using silicone. When they were done, I'd heat up the piece and scrape the silicone off with a razor. Started getting black schmutz in the siliconed areas, and finally realized I wasn't getting it ALL off.
Cynthia Morgan
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Tony Smith
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Re: Removing silicone

Postby Tony Smith » Tue Apr 08, 2014 5:29 am

Be very careful using a heat gun on fused glass... in fact, I would say never use a heat gun on fused glass. It's a perfect tool to thermally shock the glass and break it.
The tightrope between being strange and being creative is too narrow to walk without occasionally landing on both sides..." Scott Berkun

Sharon S.
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Re: Removing silicone

Postby Sharon S. » Tue Apr 08, 2014 10:07 am

I should have clarified, I was removing glue, from a plexiglass base...after building a dam for casting, not silicone. True about residue, though, I never thought of that.

Georgia Novak
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Re: Removing silicone

Postby Georgia Novak » Thu Apr 10, 2014 4:01 pm

I soak pieces I have used E-6000 on in acetone in a sealed cool whip or other "free" container so the acetone will not evaporate. Might take an hour or a day.


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