pressure-treated wood

pressure-treated wood,

wood that has had a liquid preservative forced into it in order to protect against deterioration due to rot or insect attack. The most commonly used preservatives are chromated copper arsenate (CCA) and pentachlorophenol. In the treatment process, finished lumber is placed in large container, which is sealed and filled with the preservative solution. As the pressure in the container is increase, the preservative is forced into the lumber; the excess preservative is drained from the container and recycled. The preservative makes pressure-treated wood suitable for long-term outdoor uses where ordinary wood would soon deteriorate. Because of concerns about the possible leaching of arsenic from CCA-treated wood, the use of such wood in most residential and general consumer construction was ended beginning in 2004. Wood for these uses is now treated with ACQ (alkaline copper quat, a copper oxide–quaternary ammonium compound mixture), copper azole, disodium octaborate tetrahydrate (DOT), or other chemicals.

Pressure-treated wood

Wood that has been chemically treated to extend its life, especially when outdoors or in contact with the ground. Chromated copper arsenate was the most common pressure-treated wood until a few years ago, but has now been phased out for most applications because of health and environmental concerns. Other pressure-treating chemicals include ACQ (alkaline copper quaternary), copper azole, and sodium silicate.
Mentioned in ?
References in periodicals archive ?
Never burn painted or pressure-treated wood, ocean driftwood, wood that contains glue (e.
21 December 2017 - US-based pressure-treated wood products producer Cox Industries is selling its Residential Lumber Division assets to Virginia-based wood treater producer Culpeper Wood Preservers, the company said.
This is usually found in pressure-treated wood that are placed outdoors and exposed to weather.
PressurePlus is engineered to improve the dimensional stability and overall performance of pressure-treated wood.
Avoid pressure-treated wood though because they contain toxic chemicals that can destroy any garden.
There are several grades of pressure-treated wood, and the grade depends on the use.
For many years, most outdoor structures were built with pressure-treated wood that had been soaked in chromated copper arsenate (CCA).
Many municipalities are prohibiting the use of pressure-treated wood on lakes and cedar is a durable substitute.
Arsenic is a naturally occurring element found in soil and water, but it is also a compound used as a pesticide, fertilizer and to preserve pressure-treated wood.
Antonio built his own sofa, picking up cushions for about $20 each at Costco, then constructing the base, using pressure-treated wood, to fit them.
The flooring is pressure-treated wood covered with marine-grade carpet or vinyl.
The relationship between electrical resistance and fixation of waterborne CCA salts in pressure-treated wood.