ACQ Treatment Process
alkaline copper quaternary (ACQ) is a wood preservative method recently adopted by countries such as Australia, Canada and the U.S where the need for an alternative to chromated copper arsenate exists. Composed of a quaternary ammonium compound, a fungicide, a bactericide and copper, ACQ makes treated wood resistant to all forms of biological attack, including insects and natural decay.
Benefits of ACQ Treatment
Environmentally Safe and Effective as a Wood Preservative
For those who are concerned about other treatments, ACQ and its primary ingredient copper does not pose any kind of risk to the environment or to humans. Copper in ACQ is combined with "quat", or a quaternary compound co-biocide that dramatically improves treated woods' resistance against copper-tolerant insects and fungi. "Quats" are also found in many "green" household cleaners and disinfectants.
ACQ Treated Wood and Metal Fasteners
Wood that has been treated with ACQ will expedite corrosion and degradation of metal fasteners relative to wood that is not treated with ACQ. Consequently, other types of steel fasteners must be incorporated with ACQ treated wood, such as stainless steel, copper or hot-dipped galvanized steel fasteners.