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.

Does copper azole contain arsenic?

Copper Azole (CA) The CA preservatives are copper-based and include organic co-biocides instead of the toxic chromium and arsenic used in previous models. The copper in the chemical used to pressure treat the wood is dissolved chemically in an organic solvent.

What is copper azole type C?

ProWood CA-C (Copper Azole type C) preserved wood is designed for long-term performance in outdoor applications and, therefore, require high quality corrosion-resistant nails, screws, and other fasteners and hardware.

Is it safe to use pressure treated wood for raised garden beds?

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 ecolife el2 safe for gardens?

So while the preservatives are safe for use near edible garden plants, Ecolife® is not intended or approved for ground-contact exposure. For exterior project applications, treat all field-cut ends of boards and drilled holes with a brush-on wood preservative.

Is borate treated wood toxic?

Borate wood preservatives are low-toxicity treatments used primarily on indoor wood that is protected from weather.

Is micronized 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 ACQ same as pressure treated?

Pressure treated lumber is treated with Alkaline Copper Quaternary (ACQ), an environmentally friendly water-based preservative that is free of arsenic and chromium. However, ACQ treated lumber is more corrosive to metal, so the right fastener is key to a safe, long lasting deck, fence or other outdoor project.

Is pentachlorophenol a carcinogen?

Human studies suggest an association between exposure to pentachlorophenol and cancer. Oral animal studies have reported increases in liver tumors and two uncommon tumor types. EPA has classified pentachlorophenol as a Group B2, probable human carcinogen.