Preservative requirements for exterior particleboard as predicted from accelerated laboratory evaluations

IRG/WP 265

M E Hedley

Arguments for and against preservative treatment of exterior particleboard were considered; it was concluded that preservative treatment is desirable. Laboratory decay tests were conducted to determine levels of sodium pentachlorophenoxide required to protect exterior particleboard from decay fungi. The decay resistance of treated board was compared with that of timber (both naturally durable and preservative-treated) currently used in situations for which exterior particleboard is designed. A retention of 0.35% sodium pentachlorophenoxide per oven-dry board weight was considered to offer adequate protection to the board.


Keywords: ACCELERATED TESTS; BOARDS; CONIOPHORA PUTEANA; FOMES GILVUS; GLOEOPHYLLUM TRABEUM; PARTICLEBOARDS; NaPCP

Conference: 76-05-12/15 Wildhaus, Switzerland


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