Alkaline copper quaternary, usually abbreviated ACQ, is a type of water-based wood preservative product containing a soluble copper(II) complex and quaternary ammonium alkyl- or aryl-substituted compounds ("quats").

Alkaline Copper Quaternary (also known as ACQ) is a water-based wood preservative method recently introduced in countries where there is a demand for alternatives to chromated copper arsenate (CCA).

In the first category are alkaline copper quaternary (ACQ) and two formulations of copper azole (CA-B and CA-C). The American Wood Protection Association (AWPA) has established minimum retention levels for wood treated with these preservatives (see below). The label of a board treated with ACQ or CA lists the retention level. MCQ and MCA

Jun 3, 2024 · ACQ (alkaline copper quaternary) is a water-based wood preservative that prevents decay from fungi and insects (i.e., it is a fungicide and insecticide). It also has relatively low risks, based on its components of copper oxide and quaternary ammonium compounds.

Mar 20, 2024 · Pressure-treated wood has gone through a process that uses high pressure to force a solution of water and preservative agents deep into the lumber to help extend its useful lifespan. The active ingredients commonly used in treated wood are alkaline copper quaternary (ACQ), copper azole (CA) or micronized copper azole (MCA).

Jan 12, 2023 · Two of the most commonly used wood preservatives are Chromated Copper Arsenate (CCA) and Alkaline Copper Quat (AC2). Both have been used extensively in the past to protect the wood from insects, fungi, and other types of damage. However, there are some key differences between the two.

ACQ Treated Wood: Alkaline Copper Quaternary (ACQ) treated wood is one of the most popular types of treated wood used in construction. It's made by impregnating the wood with copper and other preservatives that protect it from rot, decay, and insect damage.

Alkaline copper quat (ACQ) is one of several wood preservatives that have been developed in recent years to meet market demands for alternatives to CCA. The fungicides and insecticides in ACQ are copper oxide (67 percent) and a quaternary ammonium compound (quat).

1 day ago · ACQ-treated wood is considered safer for gardening purposes, reducing the risk of harmful chemicals leaching into the soil and affecting plant health. Use of Protective Barriers and Liners. To further mitigate any potential risks associated with treated wood, consider using landscape fabric or a protective barrier between the treated wood and ...

Micronized Copper Azole (MCA) and Micronized Copper Quaternary (MCQ) have small copper particles and another compound to protect wood from decay. The particles of copper are so small they fit into the small holes in the structure of the wood.