Minimizing and predicting delamination of southern plywood in exterior exposure

Peter Koch

Treesearch

Minimizing and predicting delamination of southern plywood in exterior exposure

Informally Refereed

Authors:

Peter Koch

Year:

1967

Type:

Scientific Journal

Station:

Southern Research Station

Source:

Forest Products Journal, Vol. 17(2): 41-47

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Download (PDF 1.60 MB): https://research.fs.usda.gov/download/treesearch/24087.pdf

Abstract

Southern pine plywood is substantially all being manufactured with phenolic glue for exterior use. Because panels must not delaminate in service, a reliable predictor of glueline durability is required. Drawing on the experience of the Douglas-fir plywood industry, southern manufacutrers have adopted as a predictor the percentage of wood failure(% WF) observed in randomly selected and thoroughly wetted shear specimens. A high % WF is accepted in the industry as evidence that the bond will be durable (7, 6).

Citation

Koch, Peter. 1967. Minimizing and predicting delamination of southern plywood in exterior exposure. Forest Products Journal, Vol. 17(2): 41-47