Accession Number : ADA140276

Title :   Comparison of Wood Preservatives in Stake Tests (1983 Progress Report).

Descriptive Note : Forest Service research note,

Corporate Author : FOREST PRODUCTS LAB MADISON WI

Personal Author(s) : Gjovik,L R ; Gutzmer,D I

PDF Url : ADA140276

Report Date : Dec 1983

Pagination or Media Count : 92

Abstract : This report covers test stake results primarily from southern pine sapwood 2 by 4 by 18 ;inches in size, treated by pressure and nonpressure processes, and installed by the Forest Products Laboratory and cooperators in our decay and termite exposure sites at various times since 1938 at Saucier, Miss., Madison, Wis., Bogalusa, La., Lake Charles, La., Jacksonville, Fla., and the Canal Zone, Panama. Also included in the tests at Saucier, Miss., are smaller pine stakes and those of treated and untreated plywood, particle-board, modified woods, laminated paper plastic, pine infected with Trichoderma mold, plus other selected wood species such as oak, Douglas-fir, and Engelmann spruce. Southern pine untreated control stakes have had an average life of about 1 year in the Canal Zone, 1.8 to 3.6 years in Mississippi, Florida, and Louisiana, and about 6 years in Wisconsin. Superficial treatments by 3-minute dipping and brushing with preservatives such as coal-tar creosote and petroleum oils containing copper naphthenate, zinc napthenate, phenyl mercury oleate, and pentachlorophenol have added a few months to 4 years to the life of the untreated stakes. When appropriate retentions are used, the creosote, pentachlorophenol, and selected waterborne salt preservatives are giving excellent service.

Descriptors :   *Lumber, *Protective treatments, Fungus proofing, Preservatives, Insecticides, Termites, Fungicides, Exposure(General), Deterioration, Decay

Subject Categories : Wood, Paper and Related Forestry Products

Distribution Statement : APPROVED FOR PUBLIC RELEASE