The hot and cold method of treating timber on the farm

– Timber of desired is placed in a drum containing a suitable preservative. The drum is then fired until the preservatives is about to boil for one to two hours and then allowed to cool.
– During heating air in the wood cells and conducting tubes expand and of the air is expelled from the cells and conducting tubes
– As the preservatives cools down, the air in the wood cells and conducting tubes contract creating a vacuum inside the cells and tubes. The vacuum draws the preservatives into the woods.

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Dr. Bbosa Science