jnats glued to wood base

One of the subjects that has been discussed over the years is how to remove a natural stone from the wood base to which it has been glued. Quite a few years ago I bought a great Nakayama Maruichi Asagi from Old_School and it was glued to a somewhat unattractive wood base.

I have often thought of removing the stone from this base and glueing it to a more attractive piece of wood. I finally worked up the nerve to disturb this wonderful stone and remove the unattractive wood and I think it was member "nipper" who was kind enough to provide me with three beautiful mahogany wood bases to remount my jnats. This required me to select an oven heat setting that would break the bond of the stone to the wood but not break the stone itself. Very anxietous undertaking when you consider the price of the stone.

Attached is a photo of the Nakayama and when I get time, I will remount my Ozuku Sunashi Suita and an unidentified jnat finisher I got from Sham. All three stones are quality stones.
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Wow. I'd be a nervous wreck - putting my fav rock in the oven.
Thanks for posting.

What type of glue will you use?

What was the temperature of the oven? And for how long? Double O

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Originally Posted by Lemur

What type of glue will you use?

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Originally Posted by Double0757

What was the temperature of the oven? And for how long? Double O

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I reattached the stone to the new base with Liquid Nails multi purpose repair adhesive.

The oven temp was 180F. I pulled it out of the oven every 15 minutes to see if it would seperate from the old base.
It came loose in 30 minutes. Probably depends on the original glue. Don't rush the job - jnats are expensive.

Jerry
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Rocks in the oven is a risky proposition. If the stone has any cracks, even minute ones the sudden temp change can KO a stone rapidly.

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Originally Posted by thebigspendur

Rocks in the oven is a risky proposition. If the stone has any cracks, even minute ones the sudden temp change can KO a stone rapidly.

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Thanks bigspendur, I agree. I should have included advice to the effect that you should only try this with a totally dry stone. Then begin at the lowest heat setting possible and try to gently seperate the stone from the base every 5 to 10 minutes and proceed up the temp ladder with great care.

Before I tried this procedure, I made up my mind that if the stone broke, I would just glue it together onto the new base and lap it until it was flat. That was a fair amount of commitment on my part. Fortunately all turned out well and the stone is intact.

I still have an Ozuku Sunashi Suita to seperate and reglue to a new base. If that one seperates successfully, I will be two for two and count myself lucky.

Jerry
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