The Talking Machine Forum — For All Antique Phonographs & Recordings

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 Post subject: Re: How do I remove this "Mystery Glue"?
PostPosted: Tue Jan 09, 2018 7:57 pm 
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Victor III
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JerryVan wrote:
Mr Grumpy wrote:
If it's shellac the best solvent would be alcohol.

I too have found alcohol to be a good solvent, especially bourbon.

Heh heh heh... Denatured would be the type to try on the turn table, the other only loosens humans ;-)


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 Post subject: Re: How do I remove this "Mystery Glue"?
PostPosted: Tue Jan 09, 2018 8:24 pm 
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Victor III
Joined: Sat Oct 24, 2015 10:46 pm
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Location: riverside calif
If it was hide glue I believe that heat would soften it. There is a big difference between denatured alcohol and rubbing alcohol. Tomb.


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 Post subject: Re: How do I remove this "Mystery Glue"?
PostPosted: Tue Jan 09, 2018 10:37 pm 
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Victor III
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mmmmm.... methyl hydrate....


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 Post subject: Re: How do I remove this "Mystery Glue"?
PostPosted: Wed Jan 10, 2018 12:12 am 
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Victor II
Joined: Wed Jan 07, 2009 11:57 pm
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Location: greater bubbaville
It looks like the felt has had a prior replacement. I agree with a coarse abrasion for removal. With the new felt only put the adhesive on the flat part of the platter. This helps the ribbed section look less defined under the felt.
Learned this from Walt Sommers' handy instructions.


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 Post subject: Re: How do I remove this "Mystery Glue"?
PostPosted: Thu Jan 11, 2018 11:38 am 
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Victor V
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Location: Northeast Pennsylvania
If you go with the power wire-wheel, use a light touch, and keep it moving.

Those things can generate a surprising amount of heat in the work-piece, and there's a chance of warping that stamped platter.

Suggest scraping the majority off with a razor-blade scraper, then removing the rest with wire-wheel, or sanding.


The home centers used to sell an adhesive solvent for mastic and similar tile / linoleum / cove-base applications. It would be found with the paint-thinners and strippers. You might check into that.


The factory would have used a glue that was cheap, set quickly, and would not soak-into the felt.

My first guesses would have been hide-glue or shellac. Varnish takes a long time to dry, so that would not be at the top of my list.

Hide glue melts around 140-150* F, you might try placing the platter in a 150* F oven (use a reliable oven thermometer) for a half-hour or so, and see if that softens the glue, if so, heavily dampen some paper-towels and lay those over the top, and leave in oven for another 15 minutes, and see if that softens the glue enough to remove.

You shouldn't need to worry about excavating the glue from the channels, only the high-spots.

Good luck !

:coffee:
De Soto Frank


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 Post subject: Re: How do I remove this "Mystery Glue"?
PostPosted: Sun Jan 21, 2018 12:52 am 
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Victor Jr
Joined: Sat Jan 06, 2018 9:27 pm
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Thanks guys. Nothing seems to have an effect on this glue. I've tried Acetone, very hot water, alcohol, basically everything I could throw at it. The stuff remains as hard as a rock. I've never liked the effect of wire brushing, especially of the powered variety, as that tends to smooth and polish metal, so I'm going to try my hand with a sanding block and progressively smoother sandpaper, starting carefully with 80 or 100. That should do it.


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 Post subject: Re: How do I remove this "Mystery Glue"?
PostPosted: Sun Jan 21, 2018 1:02 am 
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Victor VI
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"I've never liked the effect of wire brushing, especially of the powered variety, as that tends to smooth and polish metal..."

Duh... the metal will be covered with new felt so you won't see it and guess what... sanding will "smooth and polish metal". :roll:

Obviously, it's up to you if you want to waste extra time sanding the stuff off, but I have done this many times with absolutely no ill effects... I guess I wonder why you asked for advice in the first place?
"The phonograph† is not of any commercial value."
Thomas Alva Edison - Comment to his assistant, Samuel Insull.

"No one needs a Victrola XX, a Perfected Graphophone Type G, or whatever you call those noisy things."
My Wife


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 Post subject: Re: How do I remove this "Mystery Glue"?
PostPosted: Sun Jan 21, 2018 1:54 pm 
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Victor IV
Joined: Mon Aug 24, 2009 3:08 pm
Posts: 1955
Location: Harrison Township, MI
Curt A wrote:
"I've never liked the effect of wire brushing, especially of the powered variety, as that tends to smooth and polish metal..."

Duh... the metal will be covered with new felt so you won't see it and guess what... sanding will "smooth and polish metal". :roll:

Obviously, it's up to you if you want to waste extra time sanding the stuff off, but I have done this many times with absolutely no ill effects... I guess I wonder why you asked for advice in the first place?



After your rude response I'll bet he too is wondering why he asked. Was that really necessary?


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 Post subject: Re: How do I remove this "Mystery Glue"?
PostPosted: Mon Jan 22, 2018 11:07 pm 
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Victor III
Joined: Thu Sep 25, 2014 4:25 pm
Posts: 623
Location: North Central Iowa
That's interesting about all the trouble you are having with the turntable cement. I always thought they used burnt shellac to stuck the felt down with, but I've never really tried to do what you are doing with your turntable. Hide glue will not stick to the metal so they wouldn't have used that. They did use a glue made out of isinglass in those days, but I don't know why they would have used that for this. That was what they used to use to stick paper, or photographs to glass and it dried clear. I've always just scraped it off as best I could with a cabinet scraper. If you have one of those sharpened nicely, they won't score the metal. They might a little bit if you aren't careful, but a cabinet scraper is really handy for work like you are doing. And it shouldn't disturb the plating on the rim of your turntable.


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 Post subject: Re: How do I remove this "Mystery Glue"?
PostPosted: Mon Jan 22, 2018 11:24 pm 
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Victor VI
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Needle Tins are Addictive
Joined: Fri Jul 09, 2010 8:32 pm
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Location: Belmont, North Carolina
After your rude response I'll bet he too is wondering why he asked. Was that really necessary?

Yes... :roll:
"The phonograph† is not of any commercial value."
Thomas Alva Edison - Comment to his assistant, Samuel Insull.

"No one needs a Victrola XX, a Perfected Graphophone Type G, or whatever you call those noisy things."
My Wife


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