Erich
spending too much on rocks
Member since November 2015
Posts: 411 
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Post by Erich on Mar 26, 2016 15:20:12 GMT -5
So, I used Elmer's wood glue to glue slab material to wood blocks, any suggestions on un-gluing after the final slab is cut?
I've tried soaking in water, vinegar and water and heat gun. None have worked so far.
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Post by catmandewe on Mar 26, 2016 15:22:56 GMT -5
Put it slab side down in a bucket of water, check back in a few days.
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Post by Peruano on Mar 26, 2016 16:01:07 GMT -5
And an overnight freeze seems to accelerate the release for me (automatic addon in wintertime of New Mexico).
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Erich
spending too much on rocks
Member since November 2015
Posts: 411
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Post by Erich on Mar 26, 2016 20:05:10 GMT -5
Okay. Thanks for the tips.
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jerrys
spending too much on rocks
Member since February 2014
Posts: 263
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Post by jerrys on Mar 28, 2016 12:29:11 GMT -5
Elmer's white glue can be soaked in water. Elmer's wood glue is far more durable. I typically have to I sand wood glue off. Might be worth while to try acetone.
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Post by manofglass on Mar 28, 2016 12:58:21 GMT -5
Elmer's wood glue just put it in water to remove the slab I use it all the time
Walt
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Fossilman
Cave Dweller 
Member since January 2009
Posts: 20,723
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Post by Fossilman on Mar 28, 2016 20:23:20 GMT -5
I use Elmers wood glue on my rocks to wood cuts,always put them in a bucket of water/and just walk away for a couple weeks or so.....
It's like Xmas again,when I check the wood and its empty and the slabs are laying on the bottom of the water bucket.....
Works everytime-just don't be in a hurry..............LOL
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Post by Peruano on Mar 29, 2016 8:28:57 GMT -5
Man are you patient. I'm always anxious to get to that last slabette so after a couple of days in the water, I'm usually out there with my putty knife seeing if it will pop off. I have not injured myself but occasionally I've concluded that I should have waited another day or two. It seems like thick layers of glue dissolve easier than thin ones (which may not let the water penetrate into the center as well). Yes a soak in water for a few days is the way, but freezing and thawing seems to accelerate the release. Once off the stub, the glue is easily scrubbed off the stone with a brush and water. Lets guess that the oil on the stub and stone may slow the water's penetration to the glue as well so I do add a bit of soap or rinse the stub in soapy water before the soak. Hey folks, this is technical stuff we are dealing with here. Tom
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Post by victor1941 on Mar 29, 2016 9:34:47 GMT -5
If you are in an absolute hurry use a hand saw (jig or scroll) and cut slab off and then orbital or belt sand the rest.
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,723
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Post by Fossilman on Mar 29, 2016 9:50:19 GMT -5
Also remember people,forcing a slab off the wood,can and will fracture or break the slab!! I learned the hard way....
That's why I walk away for a few weeks...LOL
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Post by victor1941 on Mar 29, 2016 18:50:16 GMT -5
Fossilman, you just gave the reason for my method if a person can't wait. I use the sanding method so the glue doesn't gunk up the flat lap.
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