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Prevention of Mold Growth on CCA-treated Radiata Pine Lumber by Incorporation of Moldicide into the CCA Solution  

Kang, Sun-Mi (College of Life and Environmental Sciences, Korea University)
Kim, Gyu-Hyeok (College of Life and Environmental Sciences, Korea University)
Publication Information
Journal of the Korean Wood Science and Technology / v.35, no.2, 2007 , pp. 79-84 More about this Journal
Abstract
Surface mold fungi growing on CCA-treated wood could be inhibited effectively by the incorporation of moldicide into treating solution. In this study, moldicides compatible with the CCA solutions from various commercial moldicides were screened, and then their optimum concentrations for controlling surface mold on CCA-treated radiata pine sapwood were examined through both the laboratory and the field trials. Among nine commercial moldicdes tested, two substituted isothiazolinones, moldicide A containing 2-n-octyl-4-isothiazoline-3-one and moldicide B containing 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one, were chemically compatible with CCA solution. The optimum concentration to be incorporated into 2% CCA treating solution was determined to be 0.001% for moldicide A and 0.003% for moldicide B.
Keywords
CCA; surface mold; prevention; moldicides; radiata pine;
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