News Flash!
TREAT ME RIGHT
Pressure treated lumber has been around along time. It�s used for decks, playgrounds, retaining walls, utility poles, railroad ties and many other structural uses. Wood is treated with chemicals to help it resist rot, decay and insects, especially when it is exposed to moisture. For years the bulk of the treated lumber on the market was treated with CCA, chromated copper arsenate.
In February 2002, after years of research of the potential hazard of the arsenate leaching out of the wood and into the ground, and possibly making its way into our ground water and gardens, the EPA announced a voluntary joint decision by the manufactures of CCA to phase out the production of arsenic-containing treated wood products by December 31, 2003. Wood treated prior to this date could still be used. Contractors with inventories of CCA-treated lumber are permitted to use the wood after this date until they use up their inventories. Previously built structures with CCA-treated lumber are not affected by this action.
ALTERNATIVES TO CCA
You will not find anymore CCA-treated wood products at your local home center or lumberyard, but you will find several alternatives.
� Ammoniacal Copper Quat (ACQ-Types A, B, and C) � Wood treated using this preservative is marked under the brand name ACQ Preserve by Chemical Specialists, Inc. or CSI.
� Amine Copper Quat (ACQ-D) � Similar ingredients to ACQ-A but uses ethanolamine instead of ammonia to act as the treating solution carrier. Lumber treated with this preservative is marketed as NatureWood.
(Collectively, all the ACQ products are sometimes referred to as copper quat preservatives)
� Copper Azole-Type A (CBA-A) � Another new generation wood preservative that contains copper and boron. Often referred to as Wolmanized Natural Select.
� Borate Oxide (SBX) � A class of wood preservatives that contain boron as the active ingredient. Borate compounds include sodium octaborate, sodium tetaborate, sodium pentaborate and boric acid. Confused yet?
Well, ya� see, it�s like this�borate oxide preservatives are water-soluble and do leach. Therefore they are not recommended for wood in soil or constant water contact. Some of the brand names of these types of wood products are Advance Guard and Smart Guard.
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