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Post by woodman on Jul 4, 2015 13:24:36 GMT -5
I use cardboard and corrugated cardboard. When doing large pieces in the saw, corrugated,I use a hand saw to separate the two pieces.
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Post by orrum on Jul 4, 2015 15:02:35 GMT -5
Hey are we talking wood glue now or super glue with the cardboard and is this in the oven or a bucket of water or oven first then cool down and 5hen bucket of water to fish separation?
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Post by woodman on Jul 4, 2015 16:03:10 GMT -5
Hey are we talking wood glue now or super glue with the cardboard and is this in the oven or a bucket of water or oven first then cool down and 5hen bucket of water to fish separation? I am talking about superglue, I have never used wood glue for this purpose myself.
When I first saw the corrugated cardboard used it was to glue a 100 lb piece of wood to another that was in a large saw. We cleaned the piece in the saw with degreaser and acetone, then cleaned the other piece the same, applied accelerator to the loose piece and superglue to card board. Applied cardboard to the chunk and moved it around just a bit to smear the glue a bit and then held it to set up. Set real fast with accelerator.
Then we lifted the loose piece on to the saw, put accelerator on wood in saw and glue on cardboard and lifted it into place. held for a few seconds and I held my breath when we let go of it. I fully expected the weight to rip the cardboard, but it did not.
I think the other poster was talking about wood glue and soaking in water, which would make sense.
thin cardboard or not you now know that heat will break the bond. Have fun!
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Post by phil on Jul 4, 2015 21:01:56 GMT -5
Wood glue
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Post by orrum on Jul 7, 2015 14:23:49 GMT -5
I took the glued together rocks to the shop today and sawed them up....
Not sure this was a good idea...
After sawing, rinsing and drying you can hardly see the glue joint!!!! How in the word do you get anything in there to get them apart??? I know heat them and cool them in the oven. That sounded like a lot better idea before I saw how tight they are stuck together!!!
Man I hope this works!
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Post by phil on Jul 7, 2015 20:39:17 GMT -5
You didn't use the cardboard? fastest way will be to do one more cut, right on the glued seam, then if you get any cross contamination, use that side for your backing. OR just polish each side for a double cab.
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Post by woodman on Jul 7, 2015 21:57:20 GMT -5
I took the glued together rocks to the shop today and sawed them up.... Not sure this was a good idea... After sawing, rinsing and drying you can hardly see the glue joint!!!! How in the word do you get anything in there to get them apart??? I know heat them and cool them in the oven. That sounded like a lot better idea before I saw how tight they are stuck together!!! Man I hope this works! The heat will break the bond.
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Post by orrum on Jul 8, 2015 6:18:57 GMT -5
Phil I glued them together before the talk about the cardboard. Next time I will definitely put the cardboard in between the rocks.
Woodsman I got faith in you pardner but this stuff is glued incredibly tight!
At least I can stop worry about the water soaking them apart as I grind the edges now! LOL. Ain't no water getting in there!
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Post by woodman on Jul 8, 2015 9:25:24 GMT -5
Phil I glued them together before the talk about the cardboard. Next time I will definitely put the cardboard in between the rocks. Woodsman I got faith in you pardner but this stuff is glued incredibly tight! At least I can stop worry about the water soaking them apart as I grind the edges now! LOL. Ain't no water getting in there! Water will not weaken the super glue joint. It does make a real strong joint.
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,685
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Post by Fossilman on Jul 8, 2015 9:59:08 GMT -5
I just glued a few pieces of rough on my boards yesterday-Used wood glue....I guess I'm never in a hurry for anything anymore.. As long as it gets the job done-I'm happy!
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Post by phil on Jul 8, 2015 12:03:34 GMT -5
If you use heat, be careful. Some rocks "POP" when heated and some pop so hard it's a mini explosion. Depends on the moisture in the rock.
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Post by phil on Jul 8, 2015 12:08:57 GMT -5
I just glued a few pieces of rough on my boards yesterday-Used wood glue....I guess I'm never in a hurry for anything anymore.. As long as it gets the job done-I'm happy! I've used Elmers interior/exterior wood glue for years. only time I popped one was if I forgot to clean the cut surface of the rock first or got impatient and didn't wait long enough for the glue to set. I usually have enough done that they wait their turn at least a couple days. Right now, there's probably a dozen all glued up and ready to go. And a dozen waiting for their flush cut and cleaning to be glued. Rocks teach you patience.
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,685
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Post by Fossilman on Jul 8, 2015 14:26:55 GMT -5
I let them set for at least four days-sometimes a week..............
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Post by orrum on Jul 16, 2015 17:11:27 GMT -5
Woodman you are absolutely correct. Took the slabs that were glued with superglue and no cardboard and put them in the oven. Set it at 150 and after a hour moved it to 200 and then another hour to 250. Held it there for a hour and reversed the process. Left them in the oven till the next day and took them out. Could hardly see the crack between the two slsbs, remember I polished them first! Anyway took the razor blade and held it against the crack and tapped it into the crack. It was barely started and the slabs fell apart. Slick as the backside of a..
Well let's just say slick! Yea it worked!!!
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Post by woodman on Jul 17, 2015 8:56:37 GMT -5
Woodman you are absolutely correct. Took the slabs that were glued with superglue and no cardboard and put them in the oven. Set it at 150 and after a hour moved it to 200 and then another hour to 250. Held it there for a hour and reversed the process. Left them in the oven till the next day and took them out. Could hardly see the crack between the two slsbs, remember I polished them first! Anyway took the razor blade and held it against the crack and tapped it into the crack. It was barely started and the slabs fell apart. Slick as the backside of a.. Well let's just say slick! Yea it worked!!! Glad to hear that it worked out for you, you may have stopped at a lower temp tho. I am not really sure of the temp. requirements. I have found that some material will change color with heat, sometimes good sometimes bad. Would like to see pictures of your finished project.
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Post by orrum on Jul 17, 2015 9:29:30 GMT -5
Thanks woodman. It will be difficult since I can't post pics but sometimes Chuck/Drummond Island let's me text him pics and he posts them.
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Post by orrum on Jul 17, 2015 15:59:49 GMT -5
Hey Phil and Woodman I have a pic of one of my glue slabs and rocks together projects with a pic that Chuck posted for me! Thanks for the great advice!!
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