Freshly treated ACQ products begin with a dark, greenish color and will over time turn to a light tan/brown color upon exposure to sunlight. As with most outdoor wood products, they will eventually fade to gray over time.
Characteristics of the ACQ Preservative
Based on the well-established effectiveness of copper combined with an organic quaternary compound applied to wood by pressure treatment, the alkaline copper quaternary preservative system from Osmose, Inc. provides long-term protection of wood exposed in exterior applications. Copper and quaternary compounds are effective fungicides and termiticides. Together they provide protection from a broad spectrum of fungi and termites. The active ingredients in products treated with ACQ preservatives, copper oxide and quaternary compounds, are dissolved in an alkaline carrier. Depending on the desired product application, wood species, and exposure hazard, the ACQ preservative system may be formulated with a number of specialty additives such as water repellents to enhance product performance.
Characteristics of ACQ Preserved Wood Products
Properly treated and processed products with ACQ preservatives are similar to traditional pressure treated wood products - both are pressure treated, long lasting, durable, clean to the touch and have no objectionable odor. More than a decade of field test performance and commercial use worldwide establishes the proven effectiveness of ACQ and the preservative technology for protecting against termites and fungal decay. Products treated with ACQ preservatives offer termite and fungal decay protection similar to that of traditional treated wood. Ground contact testing of treated stakes confirm that while untreated Southern Yellow Pine stakes fail in less than 5 years, stakes preserved with ACQ preservatives perform similarly to traditionally treated stakes.
Products treated with ACQ preservatives are available in many softwood species. Approved uses include: Above Ground 5/4" Decking & Specialties, Above Ground General Use, and Ground Contact. ACQ treated products are building code compliant.
A Lifetime Residential and Agricultural Limited Warranty is offered on products with ACQ preservatives for material used in residential and agricultural applications, plus a limited 15 year warranty is offered on fence boards treated with ACQ preservatives