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Posted by tomh on March 24th, 2003 06:37 PM
In reply to New ACQ wood-is it good? by MB on March 24th, 2003 05:03 PM [Go to top of thread]

Traditional green treated wood (CCA) is required to be phased out by the end of the year. There are obviously concerns about the use of chromium copper arsenic compounds in certain applications like childrens play equipment and in locations that could contaminate water or if you burn it. But none of the substitutes I have seen can come anywhere near CCA performance in ground contact.

Based on past experience, it will be some time before you should be confident that the timber industry has found and applied equally effective substitute materials; and the substitutes are more expensive. I will be stocking up on CCA Napthalate for treating wood in contact with ground, particlarly posts. For above ground use the new products should be fine.

The mold on the Lowes materials indicates whoever their supplier is does not properly dry and ship the materials; or the preservatives are not effective.

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