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Until 2003, most wood sold in the U.S. for outdoor use was treated with chromated copper arsenate (CCA), an arsenic-based preservative. [6] By late 2001, three national manufacturers of children's backyard play sets agreed to a CEH legal settlement calling for them to stop using arsenic in pressure-treated lumber within three months. [7]
The copper in ACQ treated wood accelerates corrosion of galvanized steel fasteners (such as nails and screws) 10 times or more in comparison with CCA-treated wood. Stainless steel (AISI 316) is not affected. [7] Aluminium and Galvalum fasteners should be avoided. [8] One should use fasteners made of hot-dipped galvanized steel, copper, or ...
The PTI preservative imparts very little color to the wood. Producers generally add a color agent or a trace amount of copper solution so as to identify the wood as pressure treated and to better match the color of other pressure treated wood products. The PTI wood products are very well adapted for paint and stain applications with no bleed ...
Chromated copper arsenate (CCA) is a wood preservative containing compounds of chromium, copper, and arsenic, in various proportions.It is used to impregnate timber and other wood products, especially those intended for outdoor use, in order to protect them from attack by microbes and insects.
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Sauna use may increase blood circulation, helping to reduce blood pressure and speed recovery from physical activity. So far, though, studies have looked only at the effects of sauna in adults.
28 Safe Kids' Games To Play Outdoors Safe games kids can play outdoors are entirely dependent on the child’s age, maturity and the level of supervision available.
Other types of plywoods include fire-retardant, moisture-resistant, wire mesh, sign-grade, and pressure-treated. However, the plywood may be treated with various chemicals to improve the plywood's fireproofing. Each of these products is designed to fill a need in industry. Baltic Birch plywood is a product of an area around the Baltic Sea.