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Author Topic: Will this cookie crack more if I bring it inside  (Read 2349 times)

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Offline GeneWengert-WoodDoc

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Re: Will this cookie crack more if I bring it inside
« Reply #20 on: April 30, 2015, 08:35:34 AM »
The container should be plastic or stainless.  Spacing will be automatic as the surface is rough.

Of course, it is assumed that the wood is porous enough to allow the alcohol to penetrate easily.

More details...with small spacing and without stirring the solution, the small amount of alcohol will be quickly absorbed, replacing the water and the process will stop before you have total alcohol absorption (you want total) and the treating solution will be mostly water.  Basically, for each quart of alcohol absorbed, one quart of water will leave the wood.  A twenty pound piece of wood has about 8 pounds or one gallon of water.  So, if you put the wood in  one gallon of 180 proof alcohol, the concentration will drop to 90 proof when half done and will begin to slow way down as the concentration drops further.  So, you need lots of excess alcohol initially.  So, if you had five gallons initially, you would have one gallon  of alcohol move into the wood and one gallon of water leave, so the solution would be 140 proof at the end.  Are you going to save this flammable liquid or just discard the extra four gallons?  You could add a fresh gallon of alcohol, but unless you remove the water, you will still not achieve a fresh solution of 180 proof.  If you treated another piece with the weaker solution, at the end the solution would be even weaker.  Weaker means less effective.  So, you can see one reason why alcohol is not popular. ?.for treating wood, that is.  Further, after treating the wood now has one gallon of alcohol in it.  This will evaporate quickly.  If it evaporates into the air, it will be gone.  So, should we try and recapture it?  Would it be an air pollutant?  Have you ever seen all the dead trees around a distillery?  So, it looks like we need lots of extra alcohol, have a fire hazard and may have pollution.  All this makes the process a novelty and not a reasonable drying approach.
Gene - Author of articles in Sawmill & Woodlot and books: Drying Hardwood Lumber; VA Tech Solar Kiln; Sawing Edging & Trimming Hardwood Lumber. And more

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