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Definition of pressure-treated wood

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Categorized under "General"

Definition as written by Aimee:

A method of chemically treating wood products to protect them from insect invasions. A form of arsenic is forced into the fibers of the wood at extremely high pressure, and the resulting product is said to be safe from termites and other insects for 40 years, even when in direct contact with soil.

Definition as written by PotEmUp:

The chemical used for pressure treating wood for years was CCA (chromatedcopper aresenate.) This form of pressure treated lumber will no longer be sold for home use in the U.S.A. after December, 2003. It is being replaced with ACQ (alkaline copper quaternary), which is copper and a fungicide. This new product will corrode galvanized fasteners, so stainless steel will need to be used as a more expensive fastener. Other products will be showing up to perform the same function, hopefully with less impact on the environment and our health.


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