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Comparison of Three Organic Fungicides as Light Oil Solvent Preservatives

Comparison of Three Organic Fungicides as Light Oil Solvent Preservatives Introduction In the past most impregnation treatments of sawn timber in Australia have been carried out with waterborne preservatives, usually copper-chrome-arsenic (CCA) salts. In recent years, there has been considerable interest in the use of light oil soluble preservative (LOSP) treatments. These have the advantage of avoiding the cost and degrade of a second drying and enabling machining to be carried out before treatment. The chpice of a fungicide for these treatments poses some difficulty. A suitable preservative must be toxic to the fungi likely to attack sawn timber, especially those likely to attack external timbers such äs window joinery, bärge boards and wooden cladding. It must be highly permanent under conditions of intense volatilization and since many of these timbers are now used in an unpainted condition, it must be resistant to photodegradation and must be either colourless or of pleasing appearance. It is also necessary to take into consideration the toxic hazards of the preservative, and of the preservative-solvent combination, to treatment plant and joinery works operators, to builders and to final users. 9 Holzforschung Bd. 33, Heft 3 In the current investigation, three preservatives were tested for fungitoxicity: pentachlorophenol (PCP), tributyltin oxide (TBTO), both of http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Holzforschung - International Journal of the Biology, Chemistry, Physics and Technology of Wood de Gruyter

Comparison of Three Organic Fungicides as Light Oil Solvent Preservatives

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Publisher
de Gruyter
Copyright
Copyright © 2009 Walter de Gruyter
ISSN
0018-3830
eISSN
1437-434X
DOI
10.1515/hfsg.1979.33.3.65
Publisher site
See Article on Publisher Site

Abstract

Introduction In the past most impregnation treatments of sawn timber in Australia have been carried out with waterborne preservatives, usually copper-chrome-arsenic (CCA) salts. In recent years, there has been considerable interest in the use of light oil soluble preservative (LOSP) treatments. These have the advantage of avoiding the cost and degrade of a second drying and enabling machining to be carried out before treatment. The chpice of a fungicide for these treatments poses some difficulty. A suitable preservative must be toxic to the fungi likely to attack sawn timber, especially those likely to attack external timbers such äs window joinery, bärge boards and wooden cladding. It must be highly permanent under conditions of intense volatilization and since many of these timbers are now used in an unpainted condition, it must be resistant to photodegradation and must be either colourless or of pleasing appearance. It is also necessary to take into consideration the toxic hazards of the preservative, and of the preservative-solvent combination, to treatment plant and joinery works operators, to builders and to final users. 9 Holzforschung Bd. 33, Heft 3 In the current investigation, three preservatives were tested for fungitoxicity: pentachlorophenol (PCP), tributyltin oxide (TBTO), both of

Journal

Holzforschung - International Journal of the Biology, Chemistry, Physics and Technology of Wood – de Gruyter

Published: Jan 1, 1979

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