ACQ Weathering Information
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.
Warranty Information
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
