Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 6 Mean glueline shear strength (SS) and percent wood failure (WF) of black spruce surfaces prepared by sanding with three grit size programs

From: Evaluation of two surfacing methods on black spruce wood in relation to gluing performance

Sanding program	SS (MPa)	WF (%)
80-grit	9.1^a (0.1)^bA^c	54 (2)A
80-100-grit	8.2 (0.2)B	47 (2)B
80-100-120-grit	8.2 (0.2)B	44 (2)B

^aMean of 90 replicates (three feed speeds pooled)
^bStandard error of the mean in parentheses
^cMeans within a column followed by the same letter are not significantly different at 5 % probability level

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