Is micronized copper azole safe?
The preservative penetrates the wood’s cellular structure, giving ProWood lumber long-lasting resistance to decay and termites. Clean, odorless, non-staining and non-irritating, ProWood MCA (micronized copper azole) treated lumber is safe for humans, animals and the environment.
What is copper azole treatment?
Micronized Copper Azole (MCA) Pressure Treated Wood. Micronized Copper Azole (MCA) is a copper-based wood preservative used in the pressure treatment of wood products for use in residential applications above ground, in ground contact or in freshwater contact.
What is the best treated lumber for ground contact?
UC4B lumber is suitable for ground contact and contact with freshwater. It is also durable enough to be used for “critical construction” projects, such as utility poles.
Is ACQ treated lumber toxic?
Results showed that ACQ-treated wood is essentially non-toxic by normal dermal and oral exposures.
Is copper azole safe for garden beds?
University of Missouri Extension states that copper azole is as safe for raised beds as a similar type of wood treatment, known as ACQ, and confirms, “exposure to copper from contact with ACQ-treated wood is not expected to have adverse effects on the health of adults or children” (9).
Is copper azole toxic to humans?
A plant would die long before it could absorb enough copper to be toxic to humans. Liquid copper fungicides are approved for use on certified organic farms. John Harrison, President of JRH Toxicology, writes in 2017 that copper azole has been evaluated for safety in residential construction applications.
Is there a difference between pressure treated and ground contact?
Pressure-treated wood is softwood lumber, typically southern yellow pine, that’s been chemically treated to resist rot, decay and termites. Lumber treated to “Ground Contact” has a high chemical retention level and can be placed directly on or in the ground with better protection against rot or decay.
Is copper azole safe for raised beds?
Is ACQ safe for vegetable gardens?
The relatively new chemical treatment ACQ (alkaline copper quaternary) is safe to use in food gardens. Some of the copper may leach over time from the lumber, but the risk to human health is considered to be low.
Is it OK to use pressure treated wood for raised garden?
Modern Pressure-Treated Lumber According to the American Wood Protection Association and the U.S. Environmental Protection Agency, lumber treated with ACQ is safe for garden use. Its durability and nontoxicity make it among the best woods for raised garden beds.
Is copper azole safe for vegetable gardens?
Manufacturers of pressure-treated wood with micronized copper quaternary claim that their lumber won’t leach any copper into the soil and therefore, it’s safe for all uses, including making garden beds. Copper Azole and Alkaline copper quaternary contain fungicide and copper but not arsenic.
Is micronized copper azole safe for garden beds?
What is micronized copper azole?
What Is Micronized Copper Azole? Micronized Copper Azole (MCA) is a preservative used in the pressure treatment of residential application wood products. Micronized copper azole can be used above ground, in ground contact or in freshwater contact.
Is micronized copper azole safe to use on pressure-treated wood?
Micronized Copper Azole penetrates into and remains in pressure-treated wood for a long time. However, some preservative may migrate from the pressure-treated wood into surrounding soil over time and there may be incidental contact with skin during construction or use. Follow the safe practices listed below when working with pressure-treated wood.
What is micronized copper pressure-treating?
During the pressure-treating process, those particles are suspended — rather than dissolved — in a wood preservative solution. The micronized copper eliminates the need for a solvent, which is required for other treatment methods.
What is micronized copper used for?
The micronized copper eliminates the need for a solvent, which is required for other treatment methods. The preservative penetrates the wood’s cellular structure, giving ProWood lumber long-lasting resistance to decay and termites.